kernel February 2010

kernel@lists.fedoraproject.org

15 participants
22 discussions

RFE: vhost net backport in fc13
by Michael S. Tsirkin 18 Apr '10

18 Apr '10

All, What is needed to backport vhost net accelerator to make it avaiable in fc13? The following patches from net-next (git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git) should apply to fedora kernel without changes, and are fairly non-intrusive: 05c2828c72c4eabf62376adfe27bd24797621f62 tun: export underlying socket 5da779c34ccff5e1e617892b6c8bd8260fb1f04c mm: export use_mm/unuse_mm to modules 3a4d5c94e959359ece6d6b55045c3f046677f55c vhost_net: a kernel-level virtio server This module is required for vhost net feature. Feature page here: https://fedoraproject.org/wiki/Features/VHostNet -- MST

2 2

ppc32 selinux mprotect diff.
by Dave Jones 31 Mar '10

31 Mar '10

We've carried this diff in Fedora for a few years now.. --- linux-2.6.26.noarch/security/selinux/hooks.c~ 2008-09-25 14:11:17.000000000 -0400 +++ linux-2.6.26.noarch/security/selinux/hooks.c 2008-09-25 14:12:17.000000000 -0400 @@ -3018,7 +3018,6 @@ static int file_map_prot_check(struct fi const struct cred *cred = current_cred(); int rc = 0; -#ifndef CONFIG_PPC32 if ((prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) { /* * We are making executable an anonymous mapping or a @@ -3029,7 +3028,6 @@ static int file_map_prot_check(struct fi if (rc) goto error; } -#endif if (file) { /* read access is always possible with a mapping */ @@ -3024,7 +3022,6 @@ static int selinux_file_mprotect(struct if (selinux_checkreqprot) prot = reqprot; -#ifndef CONFIG_PPC32 if ((prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) { rc = 0; if (vma->vm_start >= vma->vm_mm->start_brk && @@ -3049,7 +3046,6 @@ static int selinux_file_mprotect(struct if (rc) return rc; } -#endif return file_map_prot_check(vma->vm_file, prot, vma->vm_flags&VM_SHARED); } This needs a fixed toolchain, and a userspace rebuild to work. For these reasons, it's had difficulty getting upstream. Fedora has a new enough toolchain, and has been rebuilt, so we don't need the ifdefs. Other distros don't/haven't, and this patch would break them if pushed upstream. Could we do something like the (untested) diff below instead, which might be more palatable to upstream, allowing us to stop carrying it ? Dave diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig index bca1b74..83a9675 100644 --- a/security/selinux/Kconfig +++ b/security/selinux/Kconfig @@ -131,3 +131,10 @@ config SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE installed under /etc/selinux/$SELINUXTYPE/policy, where SELINUXTYPE is defined in your /etc/selinux/config. +config SELINUX_NEW_ENOUGH_TOOLCHAIN + bool "SELinux mprotect checks" + default n if PPC32 + help + This option requires a modern toolchain (FIXME: Version?) + and a userspace rebuild to work. + diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 9a2ee84..e805df7 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3009,7 +3009,7 @@ static int file_map_prot_check(struct file *file, unsigned long prot, int shared const struct cred *cred = current_cred(); int rc = 0; -#ifndef CONFIG_PPC32 +#ifdef CONFIG_SELINUX_NEW_ENOUGH_TOOLCHAIN if ((prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) { /* * We are making executable an anonymous mapping or a @@ -3081,7 +3081,7 @@ static int selinux_file_mprotect(struct vm_area_struct *vma, if (selinux_checkreqprot) prot = reqprot; -#ifndef CONFIG_PPC32 +#ifdef CONFIG_SELINUX_NEW_ENOUGH_TOOLCHAIN if ((prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) { int rc = 0; if (vma->vm_start >= vma->vm_mm->start_brk &&

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GCC 4.5 heads up
by Jon Masters 27 Feb '10

27 Feb '10

Folks, This probably came up already, but probably worth passing on. Very recent kernels compiled with GCC 4.5 are occasionally hitting problems with the alignment of ftrace structs. I hit this overnight on one of my module-init-tools test systems running a non-Fedora kernel from another Linux distribution. Kyle et al might want to look at e.g.: https://bugzillafiles.novell.org/attachment.cgi?id=344563 Cheers, Jon.

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2.6.33 on F12 Xen domU
by Norman Gaywood 24 Feb '10

24 Feb '10

Well maybe it was never supposed to work but on a test Xen DomU F12 system I updated to grubby-7.0.13-1.fc13.x86_64.rpm linux-firmware-20100106-3.fc13.noarch.rpm and installed kernel-2.6.33-1.fc13.x86_64.rpm and 2.6.33 kernel would not boot. Boot messages here: Using config file "/etc/xen/kojack". Started domain kojack (early) Initializing cgroup subsys cpuset (early) Initializing cgroup subsys cpu (early) Linux version 2.6.33-1.fc13.x86_64 (mockbuild(a)x86-07.phx2.fedoraproject.org) (gcc version 4.4.3 20100211 (Red Hat 4.4.3-6) (GCC) ) #1 SMP Wed Feb 24 19:55:32 UTC 2010 (early) Command line: ro root=/dev/mapper/SYSTEM-root LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen (early) ACPI in unprivileged domain disabled (early) BIOS-provided physical RAM map: (early) Xen: 0000000000000000 - 00000000000a0000 (usable) (early) Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) Xen: 0000000000100000 - 0000000138800000 (usable) (early) bootconsole [xenboot0] enabled (early) NX (Execute Disable) protection: active (early) DMI not present or invalid. (early) No AGP bridge found (early) last_pfn = 0x138800 max_arch_pfn = 0x400000000 (early) last_pfn = 0x100000 max_arch_pfn = 0x400000000 (early) init_memory_mapping: 0000000000000000-0000000100000000 (early) init_memory_mapping: 0000000100000000-0000000138800000 (early) RAMDISK: 029da000 - 04cb7000 (early) No NUMA configuration found (early) Faking a node at 0000000000000000-0000000138800000 (early) Bootmem setup node 0 0000000000000000-0000000138800000 (early) NODE_DATA [0000000000007000 - 000000000001ffff] (early) bootmap [0000000000020000 - 00000000000470ff] pages 28 (early) (9 early reservations) ==> bootmem [0000000000 - 0138800000] (early) #0 [0000000000 - 0000001000] BIOS data page(early) ==> [0000000000 - 0000001000] (early) #1 [000567e000 - 00056ad000] XEN PAGETABLES(early) ==> [000567e000 - 00056ad000] (early) #2 [0001000000 - 00029b9138] TEXT DATA BSS(early) ==> [0001000000 - 00029b9138] (early) #3 [00029da000 - 0004cb7000] RAMDISK(early) ==> [00029da000 - 0004cb7000] (early) #4 [0004cb7000 - 000567e000] XEN START INFO(early) ==> [0004cb7000 - 000567e000] (early) #5 [0000001000 - 0000003000] TRAMPOLINE(early) ==> [0000001000 - 0000003000] (early) #6 [0000003000 - 0000007000] ACPI WAKEUP(early) ==> [0000003000 - 0000007000] (early) #7 [0000100000 - 00008d3000] PGTABLE(early) ==> [0000100000 - 00008d3000] (early) #8 [00056ad000 - 0005872000] PGTABLE(early) ==> [00056ad000 - 0005872000] (early) Zone PFN ranges: (early) DMA 0x00000000 -> 0x00001000 (early) DMA32 0x00001000 -> 0x00100000 (early) Normal 0x00100000 -> 0x00138800 (early) Movable zone start PFN for each node (early) early_node_map[2] active PFN ranges (early) 0: 0x00000000 -> 0x000000a0 (early) 0: 0x00000100 -> 0x00138800 (early) SFI: Simple Firmware Interface v0.7 http://simplefirmware.org (early) SMP: Allowing 2 CPUs, 0 hotplug CPUs (early) No local APIC present (early) APIC: disable apic facility (early) APIC: switched to apic NOOP (early) PM: Registered nosave memory: 00000000000a0000 - 0000000000100000 (early) PCI: Warning: Cannot find a gap in the 32bit address range (early) PCI: Unassigned devices with 32bit resource registers may break! (early) Allocating PCI resources starting at 138900000 (gap: 138900000:400000) (early) Booting paravirtualized kernel on Xen (early) Xen version: 3.1.2-186.el5 (preserve-AD) (early) setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:2 nr_node_ids:1 (early) PERCPU: Embedded 478 pages/cpu @ffff880009f6d000 s1927384 r8192 d22312 u1957888 (early) pcpu-alloc: s1927384 r8192 d22312 u1957888 alloc=478*4096(early) (early) pcpu-alloc: (early) [0] (early) 0 (early) [0] (early) 1 (early) (early) Xen: using vcpu_info placement (early) Built 1 zonelists in Node order, mobility grouping on. Total pages: 1260394 (early) Policy zone: Normal (early) Kernel command line: ro root=/dev/mapper/SYSTEM-root LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen (early) PID hash table entries: 4096 (order: 3, 32768 bytes) (early) Checking aperture... (early) No AGP bridge found (early) Memory: 4894788k/5120000k available (4609k kernel code, 384k absent, 224828k reserved, 7334k data, 2752k init) (early) SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 (early) Hierarchical RCU implementation. (early) NR_IRQS:4352 nr_irqs:288 (early) Console: colour dummy device 80x25 (early) Initializing cgroup subsys cpuset (early) Initializing cgroup subsys cpu (early) Linux version 2.6.33-1.fc13.x86_64 (mockbuild(a)x86-07.phx2.fedoraproject.org) (gcc version 4.4.3 20100211 (Red Hat 4.4.3-6) (GCC) ) #1 SMP Wed Feb 24 19:55:32 UTC 2010 (early) Command line: ro root=/dev/mapper/SYSTEM-root LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen (early) ACPI in unprivileged domain disabled (early) BIOS-provided physical RAM map: (early) Xen: 0000000000000000 - 00000000000a0000 (usable) (early) Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) Xen: 0000000000100000 - 0000000138800000 (usable) (early) bootconsole [xenboot0] enabled (early) NX (Execute Disable) protection: active (early) DMI not present or invalid. (early) No AGP bridge found (early) last_pfn = 0x138800 max_arch_pfn = 0x400000000 (early) last_pfn = 0x100000 max_arch_pfn = 0x400000000 (early) init_memory_mapping: 0000000000000000-0000000100000000 (early) init_memory_mapping: 0000000100000000-0000000138800000 (early) RAMDISK: 029da000 - 04cb7000 (early) No NUMA configuration found (early) Faking a node at 0000000000000000-0000000138800000 (early) Bootmem setup node 0 0000000000000000-0000000138800000 (early) NODE_DATA [0000000000007000 - 000000000001ffff] (early) bootmap [0000000000020000 - 00000000000470ff] pages 28 (early) (9 early reservations) ==> bootmem [0000000000 - 0138800000] (early) #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] (early) #1 [000567e000 - 00056ad000] XEN PAGETABLES ==> [000567e000 - 00056ad000] (early) #2 [0001000000 - 00029b9138] TEXT DATA BSS ==> [0001000000 - 00029b9138] (early) #3 [00029da000 - 0004cb7000] RAMDISK ==> [00029da000 - 0004cb7000] (early) #4 [0004cb7000 - 000567e000] XEN START INFO ==> [0004cb7000 - 000567e000] (early) #5 [0000001000 - 0000003000] TRAMPOLINE ==> [0000001000 - 0000003000] (early) #6 [0000003000 - 0000007000] ACPI WAKEUP ==> [0000003000 - 0000007000] (early) #7 [0000100000 - 00008d3000] PGTABLE ==> [0000100000 - 00008d3000] (early) #8 [00056ad000 - 0005872000] PGTABLE ==> [00056ad000 - 0005872000] (early) Zone PFN ranges: (early) DMA 0x00000000 -> 0x00001000 (early) DMA32 0x00001000 -> 0x00100000 (early) Normal 0x00100000 -> 0x00138800 (early) Movable zone start PFN for each node (early) early_node_map[2] active PFN ranges (early) 0: 0x00000000 -> 0x000000a0 (early) 0: 0x00000100 -> 0x00138800 (early) SFI: Simple Firmware Interface v0.7 http://simplefirmware.org (early) SMP: Allowing 2 CPUs, 0 hotplug CPUs (early) No local APIC present (early) APIC: disable apic facility (early) APIC: switched to apic NOOP (early) PM: Registered nosave memory: 00000000000a0000 - 0000000000100000 (early) PCI: Warning: Cannot find a gap in the 32bit address range (early) PCI: Unassigned devices with 32bit resource registers may break! (early) Allocating PCI resources starting at 138900000 (gap: 138900000:400000) (early) Booting paravirtualized kernel on Xen (early) Xen version: 3.1.2-186.el5 (preserve-AD) (early) setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:2 nr_node_ids:1 (early) PERCPU: Embedded 478 pages/cpu @ffff880009f6d000 s1927384 r8192 d22312 u1957888 (early) pcpu-alloc: s1927384 r8192 d22312 u1957888 alloc=478*4096 (early) pcpu-alloc: [0] 0 [0] 1 (early) Xen: using vcpu_info placement (early) Built 1 zonelists in Node order, mobility grouping on. Total pages: 1260394 (early) Policy zone: Normal (early) Kernel command line: ro root=/dev/mapper/SYSTEM-root LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen (early) PID hash table entries: 4096 (order: 3, 32768 bytes) (early) Checking aperture... (early) No AGP bridge found (early) Memory: 4894788k/5120000k available (4609k kernel code, 384k absent, 224828k reserved, 7334k data, 2752k init) (early) SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 (early) Hierarchical RCU implementation. (early) NR_IRQS:4352 nr_irqs:288 (early) Console: colour dummy device 80x25 (early) console [tty0] enabled console [hvc0] enabled, bootconsole disabled (early) console [hvc0] enabled, bootconsole disabled Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 48 ... MAX_LOCKDEP_KEYS: 8191 ... CLASSHASH_SIZE: 4096 ... MAX_LOCKDEP_ENTRIES: 16384 ... MAX_LOCKDEP_CHAINS: 32768 ... CHAINHASH_SIZE: 16384 memory used by lock dependency info: 6367 kB per task-struct memory footprint: 2688 bytes allocated 52428800 bytes of page_cgroup please try 'cgroup_disable=memory' option if you don't want memory cgroups installing Xen timer for CPU 0 Detected 2132.308 MHz processor. Calibrating delay loop (skipped), value calculated using timer frequency.. 4264.61 BogoMIPS (lpj=2132308) Security Framework initialized SELinux: Initializing. Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) Mount-cache hash table entries: 256 Initializing cgroup subsys ns Initializing cgroup subsys cpuacct Initializing cgroup subsys memory Initializing cgroup subsys devices Initializing cgroup subsys freezer Initializing cgroup subsys net_cls Initializing cgroup subsys blkio CPU: Unsupported number of siblings 8 Performance Events: unsupported p6 CPU model 29 no PMU driver, software events only. lockdep: fixing up alternatives. SMP alternatives: switching to UP code ftrace: converting mcount calls to 0f 1f 44 00 00 ftrace: allocating 21582 entries in 85 pages installing Xen timer for CPU 1 lockdep: fixing up alternatives. SMP alternatives: switching to SMP code CPU: Unsupported number of siblings 8 Brought up 2 CPUs devtmpfs: initialized Grant table initialized regulator: core version 0.5 Time: 165:165:165 Date: 165/165/65 NET: Registered protocol family 16 PCI: Fatal: No config space access function found bio: create slab <bio-0> at 0 ACPI: Interpreter disabled. xen_balloon: Initialising balloon driver. vgaarb: loaded SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: System does not support PCI PCI: System does not support PCI NetLabel: Initializing NetLabel: domain hash size = 128 NetLabel: protocols = UNLABELED CIPSOv4 NetLabel: unlabeled traffic allowed by default Switching to clocksource xen kstop/0 used greatest stack depth: 6248 bytes left pnp: PnP ACPI: disabled NET: Registered protocol family 2 IP route cache hash table entries: 262144 (order: 9, 2097152 bytes) TCP established hash table entries: 524288 (order: 11, 8388608 bytes) TCP bind hash table entries: 65536 (order: 10, 4718592 bytes) TCP: Hash tables configured (established 524288 bind 65536) TCP reno registered UDP hash table entries: 4096 (order: 7, 655360 bytes) UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) NET: Registered protocol family 1 Trying to unpack rootfs image as initramfs... Freeing initrd memory: 35700k freed DMA-API: preallocated 32768 debug entries DMA-API: debugging enabled by kernel config PCI-DMA: Using software bounce buffering for IO (SWIOTLB) Placing 64MB software IO TLB between ffff88000a332000 - ffff88000e332000 software IO TLB at phys 0xa332000 - 0xe332000 platform rtc_cmos: registered platform RTC device (no PNP device found) Intel PCLMULQDQ-NI instructions are not detected. audit: initializing netlink socket (disabled) type=2000 audit(1267052445.552:1): initialized HugeTLB registered 2 MB page size, pre-allocated 0 pages VFS: Disk quotas dquot_6.5.2 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) msgmni has been set to 9629 cryptomgr_test used greatest stack depth: 5704 bytes left cryptomgr_test used greatest stack depth: 5640 bytes left alg: No test for stdrng (krng) Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) pci_hotplug: PCI Hot Plug PCI Core version: 0.5 pciehp: PCI Express Hot Plug Controller Driver version: 0.4 acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 pci-stub: invalid id string "" Console: switching to colour frame buffer device 100x37 Non-volatile memory driver v1.3 Linux agpgart interface v0.103 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled brd: module loaded loop: module loaded input: Macintosh mouse button emulation as /devices/virtual/input/input0 Fixed MDIO Bus: probed ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver uhci_hcd: USB Universal Host Controller Interface driver PNP: No PS/2 controller found. Probing ports directly. mice: PS/2 mouse device common for all mice input: Xen Virtual Keyboard as /devices/virtual/input/input1 input: Xen Virtual Pointer as /devices/virtual/input/input2 rtc_cmos: probe of rtc_cmos failed with error -16 device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.16.0-ioctl (2009-11-05) initialised: dm-devel(a)redhat.com cpuidle: using governor ladder cpuidle: using governor menu usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid usbhid: USB HID core driver nf_conntrack version 0.5.0 (16384 buckets, 65536 max) CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or sysctl net.netfilter.nf_conntrack_acct=1 to enable it. ip_tables: (C) 2000-2006 Netfilter Core Team TCP cubic registered Initializing XFRM netlink socket NET: Registered protocol family 17 registered taskstats version 1 No TPM chip found, activating TPM-bypass! XENBUS: Device with no driver: device/vbd/51712 XENBUS: Device with no driver: device/vif/0 Magic number: 1:252:3141 drivers/rtc/hctosys.c: unable to open rtc device (rtc0) Initalizing network drop monitor service Freeing unused kernel memory: 2752k freed Write protecting the kernel read-only data: 10240k Freeing unused kernel memory: 1516k freed BUG: unable to handle kernel paging request at ffff880001485000 IP: [<ffffffff8102ec62>] free_init_pages+0xb2/0xdb PGD 1a44067 PUD 1a48067 PMD 568b067 PTE 10000001485025 Oops: 0003 [#1] SMP last sysfs file: CPU 0 Pid: 1, comm: swapper Not tainted 2.6.33-1.fc13.x86_64 #1 / RIP: e030:[<ffffffff8102ec62>] [<ffffffff8102ec62>] free_init_pages+0xb2/0xdb RSP: e02b:ffff88013290de60 EFLAGS: 00010286 RAX: 00000000cccccccc RBX: ffff880001600000 RCX: 0000000000000400 RDX: ffff880001485000 RSI: 0000000000000000 RDI: ffff880001485000 RBP: ffff88013290de90 R08: 0000000000002db7 R09: ffffffff8107ba78 R10: ffffffff81a569f8 R11: 0000000000000000 R12: ffff880001485000 R13: 0000000000000400 R14: ffffea0000000000 R15: 00000000cccccccc FS: 0000000000000000(0000) GS:ffff880009f6d000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffff880001485000 CR3: 0000000001a43000 CR4: 0000000000002620 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000000 Process swapper (pid: 1, threadinfo ffff88013290c000, task ffff880132910000) Stack: 0000000000000000 ffff880000000000 6db6db6db6db6db7 ffffffff81a00000 <0> 0000000000a00000 0000000000000000 ffff88013290dec0 ffffffff8102efe3 <0> ffffffff81e4c6e8 ffffffff81ba3050 0000000000000200 0000000000000200 Call Trace: [<ffffffff8102efe3>] mark_rodata_ro+0xea/0x151 [<ffffffff810021ea>] init_post+0x30/0x116 [<ffffffff81d827b2>] kernel_init+0x260/0x26f [<ffffffff8100aae4>] kernel_thread_helper+0x4/0x10 [<ffffffff814790d0>] ? restore_args+0x0/0x30 [<ffffffff8100aae0>] ? kernel_thread_helper+0x0/0x10 Code: c5 49 00 00 48 c1 e8 0c 4c 89 e2 4c 89 e9 48 6b c0 38 48 81 e2 00 f0 ff ff 31 f6 48 89 d7 4c 01 f0 c7 40 08 01 00 00 00 44 89 f8 <f3> ab 4c 89 e7 49 81 c4 00 10 00 00 e8 33 14 0b 00 48 ff 05 46 RIP [<ffffffff8102ec62>] free_init_pages+0xb2/0xdb RSP <ffff88013290de60> CR2: ffff880001485000 ---[ end trace f2868c03b335220c ]--- swapper used greatest stack depth: 4408 bytes left Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: swapper Tainted: G D 2.6.33-1.fc13.x86_64 #1 Call Trace: [<ffffffff81475a59>] panic+0x7a/0x142 [<ffffffff81478682>] ? _raw_write_unlock_irq+0x30/0x3b [<ffffffff8105404b>] ? do_exit+0x3a8/0x7a5 [<ffffffff81053d1e>] do_exit+0x7b/0x7a5 [<ffffffff81478db2>] ? _raw_spin_unlock_irqrestore+0x40/0x56 [<ffffffff8147a00b>] oops_end+0xbf/0xc7 [<ffffffff8102fc35>] no_context+0x1fc/0x20b [<ffffffff8107ba78>] ? trace_hardirqs_off+0xd/0xf [<ffffffff8102fdd6>] __bad_area_nosemaphore+0x192/0x1b5 [<ffffffff81004435>] ? __raw_callee_save_xen_pmd_val+0x11/0x1e [<ffffffff8102fe0c>] bad_area_nosemaphore+0x13/0x15 [<ffffffff8147bb40>] do_page_fault+0x1c1/0x331 [<ffffffff81479375>] page_fault+0x25/0x30 [<ffffffff8107ba78>] ? trace_hardirqs_off+0xd/0xf [<ffffffff8102ec62>] ? free_init_pages+0xb2/0xdb [<ffffffff8102efe3>] mark_rodata_ro+0xea/0x151 [<ffffffff810021ea>] init_post+0x30/0x116 [<ffffffff81d827b2>] kernel_init+0x260/0x26f [<ffffffff8100aae4>] kernel_thread_helper+0x4/0x10 [<ffffffff814790d0>] ? restore_args+0x0/0x30 [<ffffffff8100aae0>] ? kernel_thread_helper+0x0/0x10 -- Norman Gaywood, Computer Systems Officer University of New England, Armidale, NSW 2351, Australia ngaywood(a)une.edu.au Phone: +61 (0)2 6773 3337 http://mcs.une.edu.au/~norm Fax: +61 (0)2 6773 3312 Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html

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Fwd: Broken dependencies: Fedora 13 development - 2010-02-24
by Kyle McMartin 24 Feb '10

24 Feb '10

----- Forwarded message from Michael Schwendt <mschwendt(a)gmail.com> ----- Date: Wed, 24 Feb 2010 11:16:43 -0000 From: Michael Schwendt <mschwendt(a)gmail.com> To: kernel-owner(a)fedoraproject.org Subject: Broken dependencies: Fedora 13 development - 2010-02-24 Message-Id: <20100224111643.3420.2753(a)faldor.intranet> The following packages in the repository suffer from broken dependencies: ====================================================================== The results in this summary consider Test Updates! ====================================================================== package: 1:xorg-x11-drv-nouveau-0.0.16-0.20100205gite75dd23.fc13.i686 from fedora-13-development-i386 unresolved deps: kernel-drm-nouveau = 0:15 package: 1:xorg-x11-drv-nouveau-0.0.16-0.20100205gite75dd23.fc13.x86_64 from fedora-13-development-x86_64 unresolved deps: kernel-drm-nouveau = 0:15 ----- End forwarded message -----

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guest kvm-clock issues
by Jon Masters 23 Feb '10

23 Feb '10

Folks, I have a host system running a recent 2.6.33-rc8 kernel, with constant_tsc, and a bunch of guests. One of them, running rawhide, sees constant clock drifts on the order of 4-12 hours at a time. I'm going to play with switching to the acpi_pm timer, but I am interested in what's happening with the Fedora bugs on this. It seems that over the past year there have been bugs (e.g. 449187, 475598) that mention this problem and the issue has been confused with non-constant tsc host clocksources. The fact that there is the "Bug Zapper" closing perfectly useful bugs also does not help the situation. I know the KVM folks are poking at TSC issues, etc. but has anyone got anything to note on this particular issue? Jon.

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friendly reminder about kernel branches
by Kyle McMartin 22 Feb '10

22 Feb '10

To avoid future confusion: - F-11/ and F-12/: - 2.6.32, which will hopefully be going into updates RSN. - F-13/: - 2.6.33, currently in -RC. Will be staying there quite likely until Fedora 13 releases, unless 2.6.34 comes out well before -RC of F-13. - **Your commits for Fedora should go here.** - devel/: - Fedora 14 branch, will fork to F-14/ in a couple months. - Currently 2.6.33-rc as F-13. Moving to 2.6.34-git immediately after 2.6.33 is stable. - Commits should *not* happen here. Get your patches upstream for 2.6.34. - (Frankly I'm tempted to just remove everyone elses commit bits until we open it to encourage F-13 commits...) There are stable branches of F-11 and F-12, containing 2.6.30 and 2.6.31 respectively. These are maintenance mode only, pushed straight to stable so that security fixes can get to users who may have issues with the 2.6.32 in updates-testing. You can get them by: $ cd rpms/kernel; mkdir stable; pushd stable; stable$ cp -a ../F-12 .; pushd F-12; cvs up -dr \ private-fedora-12-2_6_31; popd And ditto with F-11 and private-fedora-11-2_6_30 regards, Kyle.

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re: candidate patches for Dell laptops and netbooks
by Andy Burns 19 Feb '10

19 Feb '10

[Apologies because this reply to an ancient message will inevitably break threading] On Wed Oct 21 2009 Matt Domsch wrote: > Mario Limonciello is a Dell engineer, > he's been working on making sure Dell's notebooks and > netbooks work with Ubuntu and therefore very recent kernels. I have a mini9, I was very pleased that F11 worked out of the box on it, almos every device recognised, while of course there were plenty of improvements in F12, there have also been some regressions for this machine. === Most annoying is pm-suspend no longer working out of the box, each time I reboot, I have to startup in runlevel3, log in as root on text console manually perform a pm-suspend resume by pressing power button switch to runlevel5 login to Gnome as non-root user after that rigmarole, I can suspend merely by shutting the lid and resume by opening it again, just like F11 managed out of the box https://bugzilla.redhat.com/show_bug.cgi?id=542130 Side effect of having to login to the text console first is that the GUI session doesn't get to own the SD card slot. ==== Occasionally when unplugging the power lead (1 in 25 or less frequently) I get the gnome notification "laptop battery critically low the battery is blow the critical level this computer is about to shut down" If my X session is the only logged-on session the machine shuts down with no chance to save work or cancel the shutdown, my workaround for this is to leave another user logged onto a text console, that way the system policy requests root authentication to shut it down and I can cancel it, seems that the battery level can momentarily read as 0% during unplugging, and this panics Gnome Power Management, perhaps it needs to see two consecutive low readings before it initiates shutdown? === Originally I had big issues with the Dell Wireless 5530 HSPA card, after loggin a bug and testing updates from Dan Williams, he got it working, I think there might be a niggle or two left, but recent updates seem to have broken it again, I ought to do some more tests on the current version. === > bluetooth enable/disable work from mjg. The bluetooth on/off toggle was a nice addition to F12, I do get an infrequent issue where blutooth mouse doesn't respond following a suspend/resume, and needs un-pairing/re-pairing before it works again, probably not Dell specific.

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unexplained panic tracking?
by Jon Masters 17 Feb '10

17 Feb '10

Folks, Is there any log of outstanding unexplained panics other than grepping bugzilla? I've got a box that falls over rarely and haven't got logs from it yet - just ordered a 48 port Cyclades TS 3000 so every box at home will shortly do remote serial logging to resolve this. Also, any plans to pull Jason's recent kgdb-next bits into Fedora? Or, once upstream, to have them enabled in release kernels? Jon.

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Re: rpms/kernel/devel linux-2.6-umh-refactor.patch,NONE,1.1
by Kyle McMartin 17 Feb '10

17 Feb '10

On Mon, Feb 15, 2010 at 08:31:58PM +0000, Neil Horman wrote: > Added Files: > linux-2.6-umh-refactor.patch > Log Message: > Resolves: bz557386 > Thanks Neil, I've committed this to F-12 2.6.32 too, hopefully this means we can move to 2.6.32 there soon (just in time for 2.6.33. :) regards, Kyle

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kernel February 2010