kernel January 2014

kernel@lists.fedoraproject.org

25 participants
31 discussions

fedora 14 kernel performance with ip forwarding workload
by Jesse Brandeburg 04 Jun '15

04 Jun '15

The other day I was running the stock fedora kernel on my ip forwarding setup, to see what the performance was, and the performance wasn't very good. system is S5520HC dual socket 2.93GHz Xeon 5570 (Nehalem) with 3 quad port 82580 adapters (12 ports). Traffic is bidirectional 64 byte packets being forwarded and received on each port, basically port to port routing. I am only using 12 flows currently. The driver is igb, and I am using an affinity script that lines up each pair of ports that are forwarding traffic into optimal configurations for cache locality. I am also disabling remote_node_defrag_ratio to stop cross node traffic. With the fedora default kernel from F14 it appears that CONFIG_NETFILTER=y means that I cannot unload all of netfilter even if I stop iptables service. perf showed netfilter being prominent, and removing it gives me much higher throughput. Is there a reason CONFIG_NETFILTER=y ? Isn't it a good thing to be able to disable netfilter if you want to? Jesse

5 9

Bluetooth virtual HCI driver ver 1.3
by poma 06 Mar '14

06 Mar '14

3.13.0-0.rc7.git2.2.fc21.x86_64: depmod: ERROR: Module 'hci_vhci' has devname (vhci) but lacks major and minor information. Ignoring. poma

2 3

RawhideKernelNodebug - Nosign
by poma 06 Feb '14

06 Feb '14

Who builds these kernels? Perhaps the better question is how can I actually find who builds these kernels? :) And if any exists, where is a git repo for these kernels? Thanks. poma

7 19

Supporting Allwinner ARM SoCs in Fedora 21+ kernels
by Hans de Goede 03 Feb '14

03 Feb '14

Hi All, As you probably know in my spare time I'm working on Linux Allwinner SoC support. We (the linux-sunxi community) are currently making good progress on getting Allwinner SoCs supported in the upstream kernel. It looks like the majority of it will land in 3.14 and 3.15. As such I believe the time has come to start supporting Allwinner SoCs with the official Fedora kernels ootb for F-21. I've written a Feature page for this, which you can find here: https://fedoraproject.org/wiki/Changes/AllwinnerSunxiSupport This will likely require carrying some kernel patches for 1-2 kernel releases, until all the necessary bits for headless operation have landed upstream. As always I'm willing to put my time were my work is, and I'll maintain these patches for as long as necessary. To give you an idea of where things are going, here is a break down of the tree I'm currently using for testing and development, see: https://github.com/linux-sunxi/linux-sunxi/commits/sunxi-devel This branch contains 3.13-rc5 + the following, which should all go upstream for 3.14: https://github.com/mripard/linux/commits/sunxi-clk-for-3.13 https://github.com/mripard/linux/commits/sunxi-drivers-for-3.14 https://github.com/mripard/linux/commits/sunxi-core-for-3.14 https://github.com/mripard/linux/commits/sunxi-dt-for-3.14 sunxi-bits of: https://git.linaro.org/people/daniel.lezcano/linux.git/shortlog/refs/heads/… Emilio's "[PATCH v3 00/13] clk: sunxi: add PLL5 and PLL6 support" series + the following which is not quite ready for 3.14 yet, but people are working hard to get it ready so hopefully we will see some of it in 3.14, and the rest should make 3.15: Emilio's sunxi-clk branch: patches not part of the above set David's and mine sunxi-mmc work Chen's gmac work Oliver's ahci work Arokux' ehci work mripard's "ARM: sunxi: Add A31 High Speed Timer Support" series wens' "v2 of A20 external output clock support patch series" hansg's resistive touchscreen controller driver (rtp) including temp sensor support Of the above list, we should at a minimum carry the mmc, gmac (gigabit nic) and ahci patches if those don't get upstream in time. USB support would also be very nice, but is not a must have. The last 3 patch-sets we don't need. Regards, Hans

2 6

please update linux-firmware to include latest iwlwifi firmware
by Yu Watanabe 02 Feb '14

02 Feb '14

Dear all, I found that iwlwifi firmware for 7260 is updated on upstream. https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/co… When I use the previous firmware (provided by the current linux-firmware rpm), the connection to several hotspot is sometimes lost. So, I've tried to use the new firmware, and it seems to be work fine. I do not know what is the criteria to include latest firmware. I can not find what kind of fixes applied to the latest firmware. But, I think it might be helpful for many laptop users. I comment that the iwlwifi firmware for kernel 3.13 are also provided on upstream. https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/co… Best, Yu

4 4

Kernel builds not working related to 'file' detection
by Bruno Wolff III 31 Jan '14

31 Jan '14

On x86_64 when I try to build kernels, make modules is failing because the .o files are not being recognized as object files and the linker trys to read them as linker commands, which breaks the build. When I test the file command on one of these, the detected type is 'data'. On i686 the .o files are properly detected. This changed a week or so ago, but file and file-libs haven't change since last summer. I have been doing this on f20, but there hasn't been a change on rawhide to file either. Any ideas what is going on here?

2 3

3.14 DRM merge
by Josh Boyer 31 Jan '14

31 Jan '14

Hi All, Later today I'll be pushing out a kernel that contains the large DRM merge for the 3.14 kernel. In the past we've seen this be an "interesting" point, with a lot of display issues fixed and some new display issues introduced. I'll build and test this kernel on all of the machines I have before building it in koji. Assuming that testing goes well, it should show up as 3.14.0-0.rc0.git17.1.fc21. Further testing on it would be much appreciated. If you have an issue, please file a bug with as much detail as you can get. Hopefully we can get any such issues resolved soon if we jump on them immediately. josh

2 1

[PATCH F20] ipv6: introduce IFA_F_NOPREFIXROUTE and IFA_F_MANAGETEMPADDR flags
by Jiri Pirko 29 Jan '14

29 Jan '14

https://bugzilla.redhat.com/show_bug.cgi?id=1056711 NetworkManager depends on IFA_F_NOPREFIXROUTE IFA_F_MANAGETEMPADDR in order to do SLAAC in userspace correctly. Split patches available here: http://people.redhat.com/jpirko/f20_backport_of_IFA_F_NOPREFIXROUTE_and_IFA… David S. Miller (1): ipv6: Remove privacy config option. Jiri Pirko (2): ipv6 addrconf: extend ifa_flags to u32 ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Li RongQing (1): ipv6: unneccessary to get address prefix in addrconf_get_prefix_route Thomas Haller (2): ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE stephen hemminger (1): ipv6: addrconf spelling fixes include/linux/ipv6.h | 2 - include/net/addrconf.h | 4 +- include/net/if_inet6.h | 7 +- include/uapi/linux/if_addr.h | 6 + net/ipv6/Kconfig | 18 -- net/ipv6/addrconf.c | 448 +++++++++++++++++++++++-------------------- 6 files changed, 253 insertions(+), 232 deletions(-) Signed-off-by: Jiri Pirko <jpirko(a)redhat.com> diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 28ea384..69cbcac 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -21,13 +21,11 @@ struct ipv6_devconf { __s32 force_mld_version; __s32 mldv1_unsolicited_report_interval; __s32 mldv2_unsolicited_report_interval; -#ifdef CONFIG_IPV6_PRIVACY __s32 use_tempaddr; __s32 temp_valid_lft; __s32 temp_prefered_lft; __s32 regen_max_retry; __s32 max_desync_factor; -#endif __s32 max_addresses; __s32 accept_ra_defrtr; __s32 accept_ra_pinfo; diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 86505bf..e70278e 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -81,9 +81,9 @@ int ipv6_dev_get_saddr(struct net *net, const struct net_device *dev, const struct in6_addr *daddr, unsigned int srcprefs, struct in6_addr *saddr); int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr, - unsigned char banned_flags); + u32 banned_flags); int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr, - unsigned char banned_flags); + u32 banned_flags); int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2); void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr); void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr); diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index 02ef772..b58c36c 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -50,8 +50,8 @@ struct inet6_ifaddr { int state; + __u32 flags; __u8 dad_probes; - __u8 flags; __u16 scope; @@ -66,11 +66,10 @@ struct inet6_ifaddr { struct hlist_node addr_lst; struct list_head if_list; -#ifdef CONFIG_IPV6_PRIVACY struct list_head tmp_list; struct inet6_ifaddr *ifpub; int regen_count; -#endif + bool tokenized; struct rcu_head rcu; @@ -192,11 +191,9 @@ struct inet6_dev { __u32 if_flags; int dead; -#ifdef CONFIG_IPV6_PRIVACY u8 rndid[8]; struct timer_list regen_timer; struct list_head tempaddr_list; -#endif struct in6_addr token; diff --git a/include/uapi/linux/if_addr.h b/include/uapi/linux/if_addr.h index 23357ab..dea10a8 100644 --- a/include/uapi/linux/if_addr.h +++ b/include/uapi/linux/if_addr.h @@ -18,6 +18,9 @@ struct ifaddrmsg { * It makes no difference for normally configured broadcast interfaces, * but for point-to-point IFA_ADDRESS is DESTINATION address, * local address is supplied in IFA_LOCAL attribute. + * + * IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags. + * If present, the value from struct ifaddrmsg will be ignored. */ enum { IFA_UNSPEC, @@ -28,6 +31,7 @@ enum { IFA_ANYCAST, IFA_CACHEINFO, IFA_MULTICAST, + IFA_FLAGS, __IFA_MAX, }; @@ -44,6 +48,8 @@ enum { #define IFA_F_DEPRECATED 0x20 #define IFA_F_TENTATIVE 0x40 #define IFA_F_PERMANENT 0x80 +#define IFA_F_MANAGETEMPADDR 0x100 +#define IFA_F_NOPREFIXROUTE 0x200 struct ifa_cacheinfo { __u32 ifa_prefered; diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index 11b13ea..aac8434 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -21,24 +21,6 @@ menuconfig IPV6 if IPV6 -config IPV6_PRIVACY - bool "IPv6: Privacy Extensions (RFC 3041) support" - ---help--- - Privacy Extensions for Stateless Address Autoconfiguration in IPv6 - support. With this option, additional periodically-altered - pseudo-random global-scope unicast address(es) will be assigned to - your interface(s). - - We use our standard pseudo-random algorithm to generate the - randomized interface identifier, instead of one described in RFC 3041. - - By default the kernel does not generate temporary addresses. - To use temporary addresses, do - - echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr - - See <file:Documentation/networking/ip-sysctl.txt> for details. - config IPV6_ROUTER_PREF bool "IPv6: Router Preference (RFC 4191) support" ---help--- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index cd3fb30..5ebd42e 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -83,11 +83,7 @@ #include <linux/if_tunnel.h> #include <linux/rtnetlink.h> #include <linux/netconf.h> - -#ifdef CONFIG_IPV6_PRIVACY #include <linux/random.h> -#endif - #include <linux/uaccess.h> #include <asm/unaligned.h> @@ -124,11 +120,9 @@ static inline void addrconf_sysctl_unregister(struct inet6_dev *idev) } #endif -#ifdef CONFIG_IPV6_PRIVACY static void __ipv6_regen_rndid(struct inet6_dev *idev); static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr); static void ipv6_regen_rndid(unsigned long data); -#endif static int ipv6_generate_eui64(u8 *eui, struct net_device *dev); static int ipv6_count_addresses(struct inet6_dev *idev); @@ -183,13 +177,11 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = { .rtr_solicits = MAX_RTR_SOLICITATIONS, .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL, .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY, -#ifdef CONFIG_IPV6_PRIVACY .use_tempaddr = 0, .temp_valid_lft = TEMP_VALID_LIFETIME, .temp_prefered_lft = TEMP_PREFERRED_LIFETIME, .regen_max_retry = REGEN_MAX_RETRY, .max_desync_factor = MAX_DESYNC_FACTOR, -#endif .max_addresses = IPV6_MAX_ADDRESSES, .accept_ra_defrtr = 1, .accept_ra_pinfo = 1, @@ -221,13 +213,11 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { .rtr_solicits = MAX_RTR_SOLICITATIONS, .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL, .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY, -#ifdef CONFIG_IPV6_PRIVACY .use_tempaddr = 0, .temp_valid_lft = TEMP_VALID_LIFETIME, .temp_prefered_lft = TEMP_PREFERRED_LIFETIME, .regen_max_retry = REGEN_MAX_RETRY, .max_desync_factor = MAX_DESYNC_FACTOR, -#endif .max_addresses = IPV6_MAX_ADDRESSES, .accept_ra_defrtr = 1, .accept_ra_pinfo = 1, @@ -371,7 +361,6 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) } #endif -#ifdef CONFIG_IPV6_PRIVACY INIT_LIST_HEAD(&ndev->tempaddr_list); setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev); if ((dev->flags&IFF_LOOPBACK) || @@ -384,7 +373,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) in6_dev_hold(ndev); ipv6_regen_rndid((unsigned long) ndev); } -#endif + ndev->token = in6addr_any; if (netif_running(dev) && addrconf_qdisc_ok(dev)) @@ -865,12 +854,10 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, /* Add to inet6_dev unicast addr list. */ ipv6_link_dev_addr(idev, ifa); -#ifdef CONFIG_IPV6_PRIVACY if (ifa->flags&IFA_F_TEMPORARY) { list_add(&ifa->tmp_list, &idev->tempaddr_list); in6_ifa_hold(ifa); } -#endif in6_ifa_hold(ifa); write_unlock(&idev->lock); @@ -890,15 +877,95 @@ out: goto out2; } +enum cleanup_prefix_rt_t { + CLEANUP_PREFIX_RT_NOP, /* no cleanup action for prefix route */ + CLEANUP_PREFIX_RT_DEL, /* delete the prefix route */ + CLEANUP_PREFIX_RT_EXPIRE, /* update the lifetime of the prefix route */ +}; + +/* + * Check, whether the prefix for ifp would still need a prefix route + * after deleting ifp. The function returns one of the CLEANUP_PREFIX_RT_* + * constants. + * + * 1) we don't purge prefix if address was not permanent. + * prefix is managed by its own lifetime. + * 2) we also don't purge, if the address was IFA_F_NOPREFIXROUTE. + * 3) if there are no addresses, delete prefix. + * 4) if there are still other permanent address(es), + * corresponding prefix is still permanent. + * 5) if there are still other addresses with IFA_F_NOPREFIXROUTE, + * don't purge the prefix, assume user space is managing it. + * 6) otherwise, update prefix lifetime to the + * longest valid lifetime among the corresponding + * addresses on the device. + * Note: subsequent RA will update lifetime. + **/ +static enum cleanup_prefix_rt_t +check_cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long *expires) +{ + struct inet6_ifaddr *ifa; + struct inet6_dev *idev = ifp->idev; + unsigned long lifetime; + enum cleanup_prefix_rt_t action = CLEANUP_PREFIX_RT_DEL; + + *expires = jiffies; + + list_for_each_entry(ifa, &idev->addr_list, if_list) { + if (ifa == ifp) + continue; + if (!ipv6_prefix_equal(&ifa->addr, &ifp->addr, + ifp->prefix_len)) + continue; + if (ifa->flags & (IFA_F_PERMANENT | IFA_F_NOPREFIXROUTE)) + return CLEANUP_PREFIX_RT_NOP; + + action = CLEANUP_PREFIX_RT_EXPIRE; + + spin_lock(&ifa->lock); + + lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); + /* + * Note: Because this address is + * not permanent, lifetime < + * LONG_MAX / HZ here. + */ + if (time_before(*expires, ifa->tstamp + lifetime * HZ)) + *expires = ifa->tstamp + lifetime * HZ; + spin_unlock(&ifa->lock); + } + + return action; +} + +static void +cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, bool del_rt) +{ + struct rt6_info *rt; + + rt = addrconf_get_prefix_route(&ifp->addr, + ifp->prefix_len, + ifp->idev->dev, + 0, RTF_GATEWAY | RTF_DEFAULT); + if (rt) { + if (del_rt) + ip6_del_rt(rt); + else { + if (!(rt->rt6i_flags & RTF_EXPIRES)) + rt6_set_expires(rt, expires); + ip6_rt_put(rt); + } + } +} + + /* This function wants to get referenced ifp and releases it before return */ static void ipv6_del_addr(struct inet6_ifaddr *ifp) { - struct inet6_ifaddr *ifa, *ifn; - struct inet6_dev *idev = ifp->idev; int state; - int deleted = 0, onlink = 0; - unsigned long expires = jiffies; + enum cleanup_prefix_rt_t action = CLEANUP_PREFIX_RT_NOP; + unsigned long expires; spin_lock_bh(&ifp->state_lock); state = ifp->state; @@ -912,8 +979,8 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) hlist_del_init_rcu(&ifp->addr_lst); spin_unlock_bh(&addrconf_hash_lock); - write_lock_bh(&idev->lock); -#ifdef CONFIG_IPV6_PRIVACY + write_lock_bh(&ifp->idev->lock); + if (ifp->flags&IFA_F_TEMPORARY) { list_del(&ifp->tmp_list); if (ifp->ifpub) { @@ -922,47 +989,14 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) } __in6_ifa_put(ifp); } -#endif - list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) { - if (ifa == ifp) { - list_del_init(&ifp->if_list); - __in6_ifa_put(ifp); + if (ifp->flags & IFA_F_PERMANENT && !(ifp->flags & IFA_F_NOPREFIXROUTE)) + action = check_cleanup_prefix_route(ifp, &expires); - if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0) - break; - deleted = 1; - continue; - } else if (ifp->flags & IFA_F_PERMANENT) { - if (ipv6_prefix_equal(&ifa->addr, &ifp->addr, - ifp->prefix_len)) { - if (ifa->flags & IFA_F_PERMANENT) { - onlink = 1; - if (deleted) - break; - } else { - unsigned long lifetime; - - if (!onlink) - onlink = -1; - - spin_lock(&ifa->lock); - - lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); - /* - * Note: Because this address is - * not permanent, lifetime < - * LONG_MAX / HZ here. - */ - if (time_before(expires, - ifa->tstamp + lifetime * HZ)) - expires = ifa->tstamp + lifetime * HZ; - spin_unlock(&ifa->lock); - } - } - } - } - write_unlock_bh(&idev->lock); + list_del_init(&ifp->if_list); + __in6_ifa_put(ifp); + + write_unlock_bh(&ifp->idev->lock); addrconf_del_dad_timer(ifp); @@ -970,41 +1004,9 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) inet6addr_notifier_call_chain(NETDEV_DOWN, ifp); - /* - * Purge or update corresponding prefix - * - * 1) we don't purge prefix here if address was not permanent. - * prefix is managed by its own lifetime. - * 2) if there're no addresses, delete prefix. - * 3) if there're still other permanent address(es), - * corresponding prefix is still permanent. - * 4) otherwise, update prefix lifetime to the - * longest valid lifetime among the corresponding - * addresses on the device. - * Note: subsequent RA will update lifetime. - * - * --yoshfuji - */ - if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) { - struct in6_addr prefix; - struct rt6_info *rt; - - ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); - - rt = addrconf_get_prefix_route(&prefix, - ifp->prefix_len, - ifp->idev->dev, - 0, RTF_GATEWAY | RTF_DEFAULT); - - if (rt) { - if (onlink == 0) { - ip6_del_rt(rt); - rt = NULL; - } else if (!(rt->rt6i_flags & RTF_EXPIRES)) { - rt6_set_expires(rt, expires); - } - } - ip6_rt_put(rt); + if (action != CLEANUP_PREFIX_RT_NOP) { + cleanup_prefix_route(ifp, expires, + action == CLEANUP_PREFIX_RT_DEL); } /* clean up prefsrc entries */ @@ -1013,7 +1015,6 @@ out: in6_ifa_put(ifp); } -#ifdef CONFIG_IPV6_PRIVACY static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift) { struct inet6_dev *idev = ifp->idev; @@ -1025,7 +1026,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i u32 addr_flags; unsigned long now = jiffies; - write_lock(&idev->lock); + write_lock_bh(&idev->lock); if (ift) { spin_lock_bh(&ift->lock); memcpy(&addr.s6_addr[8], &ift->addr.s6_addr[8], 8); @@ -1037,7 +1038,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i retry: in6_dev_hold(idev); if (idev->cnf.use_tempaddr <= 0) { - write_unlock(&idev->lock); + write_unlock_bh(&idev->lock); pr_info("%s: use_tempaddr is disabled\n", __func__); in6_dev_put(idev); ret = -1; @@ -1047,7 +1048,7 @@ retry: if (ifp->regen_count++ >= idev->cnf.regen_max_retry) { idev->cnf.use_tempaddr = -1; /*XXX*/ spin_unlock_bh(&ifp->lock); - write_unlock(&idev->lock); + write_unlock_bh(&idev->lock); pr_warn("%s: regeneration time exceeded - disabled temporary address support\n", __func__); in6_dev_put(idev); @@ -1073,7 +1074,7 @@ retry: regen_advance = idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time / HZ; - write_unlock(&idev->lock); + write_unlock_bh(&idev->lock); /* A temporary address is created only if this calculated Preferred * Lifetime is greater than REGEN_ADVANCE time units. In particular, @@ -1100,7 +1101,7 @@ retry: in6_dev_put(idev); pr_info("%s: retry temporary address regeneration\n", __func__); tmpaddr = &addr; - write_lock(&idev->lock); + write_lock_bh(&idev->lock); goto retry; } @@ -1116,7 +1117,6 @@ retry: out: return ret; } -#endif /* * Choose an appropriate source address (RFC3484) @@ -1131,9 +1131,7 @@ enum { #endif IPV6_SADDR_RULE_OIF, IPV6_SADDR_RULE_LABEL, -#ifdef CONFIG_IPV6_PRIVACY IPV6_SADDR_RULE_PRIVACY, -#endif IPV6_SADDR_RULE_ORCHID, IPV6_SADDR_RULE_PREFIX, IPV6_SADDR_RULE_MAX @@ -1204,7 +1202,7 @@ static int ipv6_get_saddr_eval(struct net *net, * | d is scope of the destination. * B-d | \ * | \ <- smaller scope is better if - * B-15 | \ if scope is enough for destinaion. + * B-15 | \ if scope is enough for destination. * | ret = B - scope (-1 <= scope >= d <= 15). * d-C-1 | / * |/ <- greater is better @@ -1247,7 +1245,6 @@ static int ipv6_get_saddr_eval(struct net *net, &score->ifa->addr, score->addr_type, score->ifa->idev->dev->ifindex) == dst->label; break; -#ifdef CONFIG_IPV6_PRIVACY case IPV6_SADDR_RULE_PRIVACY: { /* Rule 7: Prefer public address @@ -1259,7 +1256,6 @@ static int ipv6_get_saddr_eval(struct net *net, ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp; break; } -#endif case IPV6_SADDR_RULE_ORCHID: /* Rule 8-: Prefer ORCHID vs ORCHID or * non-ORCHID vs non-ORCHID @@ -1413,7 +1409,7 @@ try_nextdev: EXPORT_SYMBOL(ipv6_dev_get_saddr); int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr, - unsigned char banned_flags) + u32 banned_flags) { struct inet6_ifaddr *ifp; int err = -EADDRNOTAVAIL; @@ -1430,7 +1426,7 @@ int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr, } int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr, - unsigned char banned_flags) + u32 banned_flags) { struct inet6_dev *idev; int err = -EADDRNOTAVAIL; @@ -1588,7 +1584,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) if (dad_failed) ipv6_ifa_notify(0, ifp); in6_ifa_put(ifp); -#ifdef CONFIG_IPV6_PRIVACY } else if (ifp->flags&IFA_F_TEMPORARY) { struct inet6_ifaddr *ifpub; spin_lock_bh(&ifp->lock); @@ -1602,7 +1597,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) spin_unlock_bh(&ifp->lock); } ipv6_del_addr(ifp); -#endif } else ipv6_del_addr(ifp); } @@ -1851,7 +1845,6 @@ static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev) return err; } -#ifdef CONFIG_IPV6_PRIVACY /* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */ static void __ipv6_regen_rndid(struct inet6_dev *idev) { @@ -1919,7 +1912,6 @@ static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmp if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0) __ipv6_regen_rndid(idev); } -#endif /* * Add prefix route. @@ -2043,6 +2035,73 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev) return idev; } +static void manage_tempaddrs(struct inet6_dev *idev, + struct inet6_ifaddr *ifp, + __u32 valid_lft, __u32 prefered_lft, + bool create, unsigned long now) +{ + u32 flags; + struct inet6_ifaddr *ift; + + read_lock_bh(&idev->lock); + /* update all temporary addresses in the list */ + list_for_each_entry(ift, &idev->tempaddr_list, tmp_list) { + int age, max_valid, max_prefered; + + if (ifp != ift->ifpub) + continue; + + /* RFC 4941 section 3.3: + * If a received option will extend the lifetime of a public + * address, the lifetimes of temporary addresses should + * be extended, subject to the overall constraint that no + * temporary addresses should ever remain "valid" or "preferred" + * for a time longer than (TEMP_VALID_LIFETIME) or + * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR), respectively. + */ + age = (now - ift->cstamp) / HZ; + max_valid = idev->cnf.temp_valid_lft - age; + if (max_valid < 0) + max_valid = 0; + + max_prefered = idev->cnf.temp_prefered_lft - + idev->cnf.max_desync_factor - age; + if (max_prefered < 0) + max_prefered = 0; + + if (valid_lft > max_valid) + valid_lft = max_valid; + + if (prefered_lft > max_prefered) + prefered_lft = max_prefered; + + spin_lock(&ift->lock); + flags = ift->flags; + ift->valid_lft = valid_lft; + ift->prefered_lft = prefered_lft; + ift->tstamp = now; + if (prefered_lft > 0) + ift->flags &= ~IFA_F_DEPRECATED; + + spin_unlock(&ift->lock); + if (!(flags&IFA_F_TENTATIVE)) + ipv6_ifa_notify(0, ift); + } + + if ((create || list_empty(&idev->tempaddr_list)) && + idev->cnf.use_tempaddr > 0) { + /* When a new public address is created as described + * in [ADDRCONF], also create a new temporary address. + * Also create a temporary address if it's enabled but + * no temporary address currently exists. + */ + read_unlock_bh(&idev->lock); + ipv6_create_tempaddr(ifp, NULL); + } else { + read_unlock_bh(&idev->lock); + } +} + void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao) { struct prefix_info *pinfo; @@ -2197,6 +2256,7 @@ ok: return; } + ifp->flags |= IFA_F_MANAGETEMPADDR; update_lft = 0; create = 1; ifp->cstamp = jiffies; @@ -2205,11 +2265,8 @@ ok: } if (ifp) { - int flags; + u32 flags; unsigned long now; -#ifdef CONFIG_IPV6_PRIVACY - struct inet6_ifaddr *ift; -#endif u32 stored_lft; /* update lifetime (RFC2462 5.5.3 e) */ @@ -2250,72 +2307,9 @@ ok: } else spin_unlock(&ifp->lock); -#ifdef CONFIG_IPV6_PRIVACY - read_lock_bh(&in6_dev->lock); - /* update all temporary addresses in the list */ - list_for_each_entry(ift, &in6_dev->tempaddr_list, - tmp_list) { - int age, max_valid, max_prefered; - - if (ifp != ift->ifpub) - continue; - - /* - * RFC 4941 section 3.3: - * If a received option will extend the lifetime - * of a public address, the lifetimes of - * temporary addresses should be extended, - * subject to the overall constraint that no - * temporary addresses should ever remain - * "valid" or "preferred" for a time longer than - * (TEMP_VALID_LIFETIME) or - * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR), - * respectively. - */ - age = (now - ift->cstamp) / HZ; - max_valid = in6_dev->cnf.temp_valid_lft - age; - if (max_valid < 0) - max_valid = 0; - - max_prefered = in6_dev->cnf.temp_prefered_lft - - in6_dev->cnf.max_desync_factor - - age; - if (max_prefered < 0) - max_prefered = 0; - - if (valid_lft > max_valid) - valid_lft = max_valid; - - if (prefered_lft > max_prefered) - prefered_lft = max_prefered; - - spin_lock(&ift->lock); - flags = ift->flags; - ift->valid_lft = valid_lft; - ift->prefered_lft = prefered_lft; - ift->tstamp = now; - if (prefered_lft > 0) - ift->flags &= ~IFA_F_DEPRECATED; - - spin_unlock(&ift->lock); - if (!(flags&IFA_F_TENTATIVE)) - ipv6_ifa_notify(0, ift); - } + manage_tempaddrs(in6_dev, ifp, valid_lft, prefered_lft, + create, now); - if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) { - /* - * When a new public address is created as - * described in [ADDRCONF], also create a new - * temporary address. Also create a temporary - * address if it's enabled but no temporary - * address currently exists. - */ - read_unlock_bh(&in6_dev->lock); - ipv6_create_tempaddr(ifp, NULL); - } else { - read_unlock_bh(&in6_dev->lock); - } -#endif in6_ifa_put(ifp); addrconf_verify(0); } @@ -2393,10 +2387,11 @@ err_exit: /* * Manual configuration of address on an interface */ -static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *pfx, +static int inet6_addr_add(struct net *net, int ifindex, + const struct in6_addr *pfx, const struct in6_addr *peer_pfx, - unsigned int plen, __u8 ifa_flags, __u32 prefered_lft, - __u32 valid_lft) + unsigned int plen, __u32 ifa_flags, + __u32 prefered_lft, __u32 valid_lft) { struct inet6_ifaddr *ifp; struct inet6_dev *idev; @@ -2415,6 +2410,9 @@ static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *p if (!valid_lft || prefered_lft > valid_lft) return -EINVAL; + if (ifa_flags & IFA_F_MANAGETEMPADDR && plen != 64) + return -EINVAL; + dev = __dev_get_by_index(net, ifindex); if (!dev) return -ENODEV; @@ -2447,14 +2445,20 @@ static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *p valid_lft, prefered_lft); if (!IS_ERR(ifp)) { - addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, - expires, flags); + if (!(ifa_flags & IFA_F_NOPREFIXROUTE)) { + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, + expires, flags); + } + /* * Note that section 3.1 of RFC 4429 indicates * that the Optimistic flag should not be set for * manually configured addresses */ addrconf_dad_start(ifp); + if (ifa_flags & IFA_F_MANAGETEMPADDR) + manage_tempaddrs(idev, ifp, valid_lft, prefered_lft, + true, jiffies); in6_ifa_put(ifp); addrconf_verify(0); return 0; @@ -2888,7 +2892,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, } /* - * MTU falled under IPV6_MIN_MTU. + * if MTU under IPV6_MIN_MTU. * Stop IPv6 on this interface. */ @@ -2995,7 +2999,6 @@ static int addrconf_ifdown(struct net_device *dev, int how) if (!how) idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY); -#ifdef CONFIG_IPV6_PRIVACY if (how && del_timer(&idev->regen_timer)) in6_dev_put(idev); @@ -3015,7 +3018,6 @@ static int addrconf_ifdown(struct net_device *dev, int how) in6_ifa_put(ifa); write_lock_bh(&idev->lock); } -#endif while (!list_empty(&idev->addr_list)) { ifa = list_first_entry(&idev->addr_list, @@ -3386,7 +3388,7 @@ static void if6_seq_stop(struct seq_file *seq, void *v) static int if6_seq_show(struct seq_file *seq, void *v) { struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v; - seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s\n", + seq_printf(seq, "%pi6 %02x %02x %02x %03x %8s\n", &ifp->addr, ifp->idev->dev->ifindex, ifp->prefix_len, @@ -3528,7 +3530,6 @@ restart: in6_ifa_put(ifp); goto restart; } -#ifdef CONFIG_IPV6_PRIVACY } else if ((ifp->flags&IFA_F_TEMPORARY) && !(ifp->flags&IFA_F_TENTATIVE)) { unsigned long regen_advance = ifp->idev->cnf.regen_max_retry * @@ -3556,7 +3557,6 @@ restart: } else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next)) next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ; spin_unlock(&ifp->lock); -#endif } else { /* ifp->prefered_lft <= ifp->valid_lft */ if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next)) @@ -3609,6 +3609,7 @@ static const struct nla_policy ifa_ipv6_policy[IFA_MAX+1] = { [IFA_ADDRESS] = { .len = sizeof(struct in6_addr) }, [IFA_LOCAL] = { .len = sizeof(struct in6_addr) }, [IFA_CACHEINFO] = { .len = sizeof(struct ifa_cacheinfo) }, + [IFA_FLAGS] = { .len = sizeof(u32) }, }; static int @@ -3632,16 +3633,22 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh) return inet6_addr_del(net, ifm->ifa_index, pfx, ifm->ifa_prefixlen); } -static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, +static int inet6_addr_modify(struct inet6_ifaddr *ifp, u32 ifa_flags, u32 prefered_lft, u32 valid_lft) { u32 flags; clock_t expires; unsigned long timeout; + bool was_managetempaddr; + bool had_prefixroute; if (!valid_lft || (prefered_lft > valid_lft)) return -EINVAL; + if (ifa_flags & IFA_F_MANAGETEMPADDR && + (ifp->flags & IFA_F_TEMPORARY || ifp->prefix_len != 64)) + return -EINVAL; + timeout = addrconf_timeout_fixup(valid_lft, HZ); if (addrconf_finite_timeout(timeout)) { expires = jiffies_to_clock_t(timeout * HZ); @@ -3661,7 +3668,13 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, } spin_lock_bh(&ifp->lock); - ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags; + was_managetempaddr = ifp->flags & IFA_F_MANAGETEMPADDR; + had_prefixroute = ifp->flags & IFA_F_PERMANENT && + !(ifp->flags & IFA_F_NOPREFIXROUTE); + ifp->flags &= ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | + IFA_F_HOMEADDRESS | IFA_F_MANAGETEMPADDR | + IFA_F_NOPREFIXROUTE); + ifp->flags |= ifa_flags; ifp->tstamp = jiffies; ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; @@ -3670,8 +3683,30 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, if (!(ifp->flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ifp); - addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, - expires, flags); + if (!(ifa_flags & IFA_F_NOPREFIXROUTE)) { + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, + expires, flags); + } else if (had_prefixroute) { + enum cleanup_prefix_rt_t action; + unsigned long rt_expires; + + write_lock_bh(&ifp->idev->lock); + action = check_cleanup_prefix_route(ifp, &rt_expires); + write_unlock_bh(&ifp->idev->lock); + + if (action != CLEANUP_PREFIX_RT_NOP) { + cleanup_prefix_route(ifp, rt_expires, + action == CLEANUP_PREFIX_RT_DEL); + } + } + + if (was_managetempaddr || ifp->flags & IFA_F_MANAGETEMPADDR) { + if (was_managetempaddr && !(ifp->flags & IFA_F_MANAGETEMPADDR)) + valid_lft = prefered_lft = 0; + manage_tempaddrs(ifp->idev, ifp, valid_lft, prefered_lft, + !was_managetempaddr, jiffies); + } + addrconf_verify(0); return 0; @@ -3687,7 +3722,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) struct inet6_ifaddr *ifa; struct net_device *dev; u32 valid_lft = INFINITY_LIFE_TIME, preferred_lft = INFINITY_LIFE_TIME; - u8 ifa_flags; + u32 ifa_flags; int err; err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy); @@ -3714,14 +3749,17 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) if (dev == NULL) return -ENODEV; + ifa_flags = tb[IFA_FLAGS] ? nla_get_u32(tb[IFA_FLAGS]) : ifm->ifa_flags; + /* We ignore other flags so far. */ - ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS); + ifa_flags &= IFA_F_NODAD | IFA_F_HOMEADDRESS | IFA_F_MANAGETEMPADDR | + IFA_F_NOPREFIXROUTE; ifa = ipv6_get_ifaddr(net, pfx, dev, 1); if (ifa == NULL) { /* * It would be best to check for !NLM_F_CREATE here but - * userspace alreay relies on not having to provide this. + * userspace already relies on not having to provide this. */ return inet6_addr_add(net, ifm->ifa_index, pfx, peer_pfx, ifm->ifa_prefixlen, ifa_flags, @@ -3739,7 +3777,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) return err; } -static void put_ifaddrmsg(struct nlmsghdr *nlh, u8 prefixlen, u8 flags, +static void put_ifaddrmsg(struct nlmsghdr *nlh, u8 prefixlen, u32 flags, u8 scope, int ifindex) { struct ifaddrmsg *ifm; @@ -3782,7 +3820,8 @@ static inline int inet6_ifaddr_msgsize(void) return NLMSG_ALIGN(sizeof(struct ifaddrmsg)) + nla_total_size(16) /* IFA_LOCAL */ + nla_total_size(16) /* IFA_ADDRESS */ - + nla_total_size(sizeof(struct ifa_cacheinfo)); + + nla_total_size(sizeof(struct ifa_cacheinfo)) + + nla_total_size(4) /* IFA_FLAGS */; } static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, @@ -3830,6 +3869,9 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, if (put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0) goto error; + if (nla_put_u32(skb, IFA_FLAGS, ifa->flags) < 0) + goto error; + return nlmsg_end(skb, nlh); error: @@ -4128,13 +4170,11 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, jiffies_to_msecs(cnf->mldv1_unsolicited_report_interval); array[DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL] = jiffies_to_msecs(cnf->mldv2_unsolicited_report_interval); -#ifdef CONFIG_IPV6_PRIVACY array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr; array[DEVCONF_TEMP_VALID_LFT] = cnf->temp_valid_lft; array[DEVCONF_TEMP_PREFERED_LFT] = cnf->temp_prefered_lft; array[DEVCONF_REGEN_MAX_RETRY] = cnf->regen_max_retry; array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor; -#endif array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses; array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr; array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo; @@ -4828,7 +4868,6 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec_ms_jiffies, }, -#ifdef CONFIG_IPV6_PRIVACY { .procname = "use_tempaddr", .data = &ipv6_devconf.use_tempaddr, @@ -4864,7 +4903,6 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec, }, -#endif { .procname = "max_addresses", .data = &ipv6_devconf.max_addresses,

3 7

[PATCH F20] ipv6 addrconf: revert /proc/net/if_inet6 ifa_flag format
by Jiri Pirko 29 Jan '14

29 Jan '14

This fixes the issue described here: https://bugzilla.redhat.com/show_bug.cgi?id=1056711#c5 net-next commit 971a351ccbbd2b6eef136a2221da0b80aca50906 Author: Jiri Pirko <jiri(a)resnulli.us> Date: Tue Dec 10 13:56:29 2013 +0100 ipv6 addrconf: revert /proc/net/if_inet6 ifa_flag format Turned out that applications like ifconfig do not handle the change. So revert ifa_flag format back to 2-letter hex value. Introduced by: commit 479840ffdbe4242e8a25349218c8e0859223aa35 "ipv6 addrconf: extend ifa_flags to u32" Signed-off-by: Jiri Pirko <jpirko(a)redhat.com> diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index be4dbbd..3c3425e 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3367,12 +3367,12 @@ static void if6_seq_stop(struct seq_file *seq, void *v) static int if6_seq_show(struct seq_file *seq, void *v) { struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v; - seq_printf(seq, "%pi6 %02x %02x %02x %03x %8s\n", + seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s\n", &ifp->addr, ifp->idev->dev->ifindex, ifp->prefix_len, ifp->scope, - ifp->flags, + (u8) ifp->flags, ifp->idev->dev->name); return 0; }

1 0

vmw_pvscsi 0000:13:00.0: DMA-API: device driver failed to check map error[device address=0x0000000028cbcc40]
by Reindl Harald 28 Jan '14

28 Jan '14

may somebody of VMware Inc. please take a look at https://bugzilla.redhat.com/show_bug.cgi?id=926917 these messages appear in dmesg in case of debug-kernels for a long time and given that we speak about the main storage driver that leaves a bad taste [ 15.641689] scsi2 : VMware PVSCSI storage adapter rev 2, req/cmp/msg rings: 8/8/1 pages, cmd_per_lun=64 [ 15.650348] vmw_pvscsi 0000:13:00.0: VMware PVSCSI rev 2 host #2 [ 15.656531] ------------[ cut here ]------------ [ 15.657055] WARNING: CPU: 0 PID: 6 at lib/dma-debug.c:937 check_unmap+0x47b/0x920() [ 15.657577] vmw_pvscsi 0000:13:00.0: DMA-API: device driver failed to check map error[device address=0x0000000028cbcc40] [size=96 bytes] [mapped as single] [ 15.658483] Modules linked in: [ 15.659064] vmw_pvscsi(+) [ 15.659460] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 3.14.0-0.rc0.git3.1.fc21.x86_64 #1 [ 15.660174] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 [ 15.661267] Workqueue: events_unbound async_run_entry_fn [ 15.661944] 0000000000000009 ffff88002fc03ad8 ffffffff817685b8 ffff88002fc03b20 [ 15.662548] ffff88002fc03b10 ffffffff8107ad3d ffff88002d24f2d0 ffff88002c51ee38 [ 15.663353] ffffffff82d6b950 0000000000000086 ffffffff81a23e5b ffff88002fc03b70 [ 15.664135] Call Trace: [ 15.664481] <IRQ> [<ffffffff817685b8>] dump_stack+0x4d/0x66 [ 15.665162] [<ffffffff8107ad3d>] warn_slowpath_common+0x7d/0xa0 [ 15.665626] [<ffffffff8107adac>] warn_slowpath_fmt+0x4c/0x50 [ 15.666272] [<ffffffff813b523b>] check_unmap+0x47b/0x920 [ 15.666941] [<ffffffff813b582d>] ? debug_dma_unmap_sg+0x6d/0x130 [ 15.667574] [<ffffffff813b573f>] debug_dma_unmap_page+0x5f/0x70 [ 15.668141] [<ffffffffa00006ba>] pvscsi_unmap_buffers.isra.12+0x11a/0x1f0 [vmw_pvscsi] [ 15.668912] [<ffffffffa0000896>] pvscsi_process_completion_ring+0x106/0x2d0 [vmw_pvscsi] [ 15.669496] [<ffffffffa0000b14>] pvscsi_isr+0x34/0xa0 [vmw_pvscsi] [ 15.670171] [<ffffffff810ed3fe>] handle_irq_event_percpu+0x3e/0x370 [ 15.670661] [<ffffffff810ed76d>] handle_irq_event+0x3d/0x60 [ 15.671305] [<ffffffff810f0257>] handle_edge_irq+0x77/0x130 [ 15.671935] [<ffffffff8101bbaf>] handle_irq+0xbf/0x150 [ 15.672385] [<ffffffff81081aa2>] ? irq_enter+0x42/0x90 [ 15.673000] [<ffffffff8177d34f>] do_IRQ+0x4f/0xf0 [ 15.673521] [<ffffffff81771eb2>] common_interrupt+0x72/0x72 [ 15.674089] [<ffffffff810814e8>] ? __do_softirq+0xc8/0x460 [ 15.674557] [<ffffffff810814e1>] ? __do_softirq+0xc1/0x460 [ 15.675196] [<ffffffff810bd8d1>] ? sched_clock_cpu+0x11/0xd0 [ 15.675670] [<ffffffff81081bb5>] irq_exit+0xc5/0xd0 [ 15.676285] [<ffffffff8177d435>] smp_apic_timer_interrupt+0x45/0x60 [ 15.676927] [<ffffffff8177bd72>] apic_timer_interrupt+0x72/0x80 [ 15.677410] <EOI> [<ffffffff8177119b>] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 15.678148] [<ffffffffa0001750>] pvscsi_queue+0x130/0x830 [vmw_pvscsi] [ 15.678661] [<ffffffff814ce2f0>] ? perf_trace_scsi_dispatch_cmd_error+0x1a0/0x1a0 [ 15.679367] [<ffffffff814ce8f1>] scsi_dispatch_cmd+0xb1/0x4e0 [ 15.679999] [<ffffffff814d627c>] scsi_request_fn+0x33c/0x540 [ 15.680469] [<ffffffff8135a603>] __blk_run_queue+0x33/0x40 [ 15.681095] [<ffffffff81363241>] blk_execute_rq_nowait+0xa1/0x120 [ 15.681579] [<ffffffff81363366>] blk_execute_rq+0x76/0x100 [ 15.682213] [<ffffffff8135911f>] ? blk_rq_init+0xff/0x170 [ 15.682707] [<ffffffff81363650>] ? blk_recount_segments+0x20/0x40 [ 15.683359] [<ffffffff81241209>] ? bio_phys_segments+0x19/0x20 [ 15.684013] [<ffffffff8135e890>] ? blk_rq_bio_prep+0x70/0xd0 [ 15.684469] [<ffffffff813630f0>] ? blk_rq_map_kern+0xc0/0x170 [ 15.685107] [<ffffffff814d4d87>] scsi_execute+0xd7/0x160 [ 15.685556] [<ffffffff814d656c>] scsi_execute_req_flags+0x8c/0x100 [ 15.686201] [<ffffffff814d898c>] scsi_probe_and_add_lun+0x20c/0xc00 [ 15.686687] [<ffffffff814d97f8>] __scsi_scan_target+0xf8/0x6a0 [ 15.687330] [<ffffffff810d8339>] ? mark_held_locks+0xb9/0x140 [ 15.687986] [<ffffffff81771196>] ? _raw_spin_unlock_irqrestore+0x36/0x70 [ 15.692147] [<ffffffff810d84c5>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 15.692661] [<ffffffff810d859d>] ? trace_hardirqs_on+0xd/0x10 [ 15.693345] [<ffffffff814d9f16>] scsi_scan_channel.part.6+0x66/0x90 [ 15.694016] [<ffffffff814da0d9>] scsi_scan_host_selected+0xf9/0x1c0 [ 15.694497] [<ffffffff814da231>] do_scsi_scan_host+0x91/0xa0 [ 15.695125] [<ffffffff814da40c>] do_scan_async+0x1c/0x160 [ 15.695574] [<ffffffff810ae389>] async_run_entry_fn+0x39/0x120 [ 15.696229] [<ffffffff8109d4c1>] process_one_work+0x211/0x6b0 [ 15.696689] [<ffffffff8109d455>] ? process_one_work+0x1a5/0x6b0 [ 15.697332] [<ffffffff8109da7b>] worker_thread+0x11b/0x3a0 [ 15.697958] [<ffffffff8109d960>] ? process_one_work+0x6b0/0x6b0 [ 15.698423] [<ffffffff810a6550>] kthread+0xf0/0x110 [ 15.699031] [<ffffffff81021f59>] ? sched_clock+0x9/0x10 [ 15.699472] [<ffffffff810a6460>] ? insert_kthread_work+0x80/0x80 [ 15.700112] [<ffffffff8177afbc>] ret_from_fork+0x7c/0xb0 [ 15.700587] [<ffffffff810a6460>] ? insert_kthread_work+0x80/0x80 [ 15.701261] ---[ end trace 9e665d6a1a3e2037 ]--- [ 15.701676] Mapped at: [ 15.702234] [<ffffffff813b4081>] debug_dma_map_page+0x91/0x140 [ 15.702722] [<ffffffffa00018a1>] pvscsi_queue+0x281/0x830 [vmw_pvscsi] [ 15.703360] [<ffffffff814ce8f1>] scsi_dispatch_cmd+0xb1/0x4e0 [ 15.704018] [<ffffffff814d627c>] scsi_request_fn+0x33c/0x540 [ 15.704530] [<ffffffff8135a603>] __blk_run_queue+0x33/0x40 [ 15.706915] scsi 2:0:0:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2 [ 15.708230] scsi 2:0:1:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2

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kernel January 2014