kernel November 2010

kernel@lists.fedoraproject.org

18 participants
11 discussions

Fedora 15 Schedule
by John Poelstra 06 Dec '10

06 Dec '10

Hello Kernel People, It was brought to my attention Jesse Keating, at the end of the Fedora 14 release, that it might be helpful to add some kernel tasks or milestones to the overall release schedule. I would like to help with this. To do so I need to know which tasks and milestones to include in the schedule. Here is the current development schedule for Fedora 15: Start End Name Wed 19-Jan Wed 19-Jan Submit Installer Builds for QA Compose Tue 25-Jan Tue 25-Jan Feature Submission Deadline Wed 26-Jan Wed 26-Jan Submit Installer Builds for QA Compose Sat 29-Jan Mon 31-Jan Fudcon Fedora 15--Tempe, Arizona Wed 02-Feb Wed 02-Feb Submit Installer Builds for QA Compose Tue 08-Feb Tue 08-Feb Branch Fedora 15 from Rawhide Tue 08-Feb Tue 08-Feb Orphan Rawhide Packages Tue 08-Feb Tue 08-Feb Feature Freeze (Testable|Complete) Tue 08-Feb Tue 08-Feb Spins Freeze--All Fedora 15 Spins Identified Tue 15-Feb Tue 15-Feb Alpha Change Deadline Tue 15-Feb Tue 15-Feb Software String Freeze Wed 16-Feb Wed 16-Feb Submit Installer Builds for Alpha RC Compose Tue 01-Mar Tue 01-Mar Alpha Public Availability Fri 04-Mar Fri 04-Mar Build F-15 collection packages for all language translators Mon 14-Mar Mon 14-Mar Submit Installer Builds for Beta TC Compose Tue 15-Mar Tue 15-Mar Software: Start Rebuild all translated packages Tue 15-Mar Tue 22-Mar Software: Rebuild all translated packages Tue 22-Mar Tue 22-Mar Beta Change Deadline Tue 22-Mar Tue 22-Mar Features 100% Complete Deadline Wed 23-Mar Wed 23-Mar Submit Installer Builds for Beta RC Compose Tue 05-Apr Tue 05-Apr Beta Release Public Availability Fri 15-Apr Fri 15-Apr Submit Installer Builds for Final TC Compose Mon 25-Apr Mon 25-Apr Final Change Deadline Mon 25-Apr Mon 25-Apr Submit Installer Builds for Final RC Compose Tue 10-May Tue 10-May Final (GA) Release What should we add for the kernel team so that important dates are known and Fedora 15 can be well coordinated? John

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Fan+heat troubles on MacBook Pro
by christoffer.buchholz＠gmail.com 29 Nov '10

29 Nov '10

Hi guys, I own a MacBook Pro which I bought brand new in January 2010. I have tried running Fedora 14 (and 13) on it, but I am having some troubles. Especially, the fan is not functioning properly which leads to very hot temperatures nearing 70 degrees celcius when I am not doing more than running irssi in a terminal. I having been digging around, and loading the applesmc and coretemp modules scored a few degrees. Also running fedora at runlevel 3 didnt do much difference, so I guess the problem is not X but the Linux kernel. FYI, I am using the nouveau driver and not the proprietary nvidia driver. I tried the nvidia driver, but it didnt do any difference, so I went with the nouveau one. I have tried with powertop and enabling its suggestions, but it didnt help. I and writing this mail in hope to get some tips back with things I could try, and also to see if this is something that is worth filing a bug on, or if the issue is somewhere else. Sincerely, Chris Buchholz

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WARNING: at drivers/char/tty_io.c:1325 tty_open+0x29c/0x49b()
by Michał Piotrowski 29 Nov '10

29 Nov '10

I hit this bug after upgrade from testing systemd repo [ 15.630389] WARNING: at drivers/char/tty_io.c:1325 tty_open+0x29c/0x49b() [ 15.630393] Hardware name: HP 550 [ 15.630396] Modules linked in: snd_hda_codec_analog iwlagn snd_hda_intel iwlcore snd_hda_codec snd_hwdep snd_seq uinput snd_seq_device hp_wmi btusb mac80211 snd_pcm cfg80211 bluetooth rfkill snd_timer joydev serio_raw wmi shpchp snd soundcore e1000e iTCO_wdt snd_page_alloc iTCO_vendor_support ipv6 i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan] [ 15.630460] Pid: 123, comm: plymouthd Not tainted 2.6.36-1.fc15.x86_64 #1 [ 15.630464] Call Trace: [ 15.630472] [<ffffffff810511bc>] warn_slowpath_common+0x85/0x9d [ 15.630479] [<ffffffff810511ee>] warn_slowpath_null+0x1a/0x1c [ 15.630485] [<ffffffff812d3c3a>] tty_open+0x29c/0x49b [ 15.630493] [<ffffffff8112eb90>] chrdev_open+0x122/0x14b [ 15.630499] [<ffffffff8112ea6e>] ? chrdev_open+0x0/0x14b [ 15.630506] [<ffffffff8112963f>] __dentry_open+0x1c2/0x338 [ 15.630514] [<ffffffff8121316e>] ? devcgroup_inode_permission+0xea/0x117 [ 15.630521] [<ffffffff8112a4c0>] nameidata_to_filp+0x3f/0x50 [ 15.630527] [<ffffffff81136adc>] do_last+0x432/0x5af [ 15.630533] [<ffffffff81246491>] ? __raw_spin_lock_init+0x31/0x50 [ 15.630539] [<ffffffff81136e89>] do_filp_open+0x230/0x5e1 [ 15.630546] [<ffffffff81010588>] ? native_sched_clock+0x35/0x37 [ 15.630553] [<ffffffff8107275e>] ? local_clock+0x36/0x4d [ 15.630561] [<ffffffff8107ff01>] ? lock_release+0x19a/0x1a6 [ 15.630568] [<ffffffff81140e16>] ? alloc_fd+0x16a/0x17c [ 15.630574] [<ffffffff8112a531>] do_sys_open+0x60/0xfc [ 15.630582] [<ffffffff8149cb0d>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 15.630588] [<ffffffff8112a5ed>] sys_open+0x20/0x22 [ 15.630594] [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b [ 15.630599] ---[ end trace 740a8a695fc86592 ]--- [ 16.275231] init[1]: tmpwatch.service: main process exited, code=exited, status=203 [ 16.279501] init[1]: Unit tmpwatch.service entered failed state. [ 16.410415] ------------[ cut here ]------------ [ 16.410427] WARNING: at drivers/char/tty_io.c:1325 tty_open+0x29c/0x49b() [ 16.410431] Hardware name: HP 550 [ 16.410434] Modules linked in: snd_hda_codec_analog iwlagn snd_hda_intel iwlcore snd_hda_codec snd_hwdep snd_seq uinput snd_seq_device hp_wmi btusb mac80211 snd_pcm cfg80211 bluetooth rfkill snd_timer joydev serio_raw wmi shpchp snd soundcore e1000e iTCO_wdt snd_page_alloc iTCO_vendor_support ipv6 i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan] [ 16.410499] Pid: 123, comm: plymouthd Tainted: G W 2.6.36-1.fc15.x86_64 #1 [ 16.410504] Call Trace: [ 16.410515] [<ffffffff810511bc>] warn_slowpath_common+0x85/0x9d [ 16.410522] [<ffffffff810511ee>] warn_slowpath_null+0x1a/0x1c [ 16.410528] [<ffffffff812d3c3a>] tty_open+0x29c/0x49b [ 16.410535] [<ffffffff8112eb90>] chrdev_open+0x122/0x14b [ 16.410542] [<ffffffff8112ea6e>] ? chrdev_open+0x0/0x14b [ 16.410549] [<ffffffff8112963f>] __dentry_open+0x1c2/0x338 [ 16.410557] [<ffffffff8121316e>] ? devcgroup_inode_permission+0xea/0x117 [ 16.410564] [<ffffffff8112a4c0>] nameidata_to_filp+0x3f/0x50 [ 16.410571] [<ffffffff81136adc>] do_last+0x432/0x5af [ 16.410577] [<ffffffff81246491>] ? __raw_spin_lock_init+0x31/0x50 [ 16.410583] [<ffffffff81136e89>] do_filp_open+0x230/0x5e1 [ 16.410590] [<ffffffff81010588>] ? native_sched_clock+0x35/0x37 [ 16.410598] [<ffffffff8107275e>] ? local_clock+0x36/0x4d [ 16.410605] [<ffffffff8107ff01>] ? lock_release+0x19a/0x1a6 [ 16.410612] [<ffffffff81140e16>] ? alloc_fd+0x16a/0x17c [ 16.410619] [<ffffffff8112a531>] do_sys_open+0x60/0xfc [ 16.410627] [<ffffffff8149cb0d>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 16.410633] [<ffffffff8112a5ed>] sys_open+0x20/0x22 [ 16.410639] [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b [ 16.410644] ---[ end trace 740a8a695fc86593 ]--- https://bugzilla.redhat.com/show_bug.cgi?id=630464 Regards, Michal

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[PATCH 2.6.35 0/3] r8169 fixes for F-14
by Stanislaw Gruszka 26 Nov '10

26 Nov '10

These are r8169 fixes from Francois Romieu for F-14 (2.6.35), not applied to 2.6.35.y -stable since it is not longer maintained. Resolve BZ#502974

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[PATCH 2.6.34 0/4] r8169 fixes for F-13
by Stanislaw Gruszka 26 Nov '10

26 Nov '10

These are r8169 fixes from Francois Romieu for F-13 (2.6.34), not applied to 2.6.34.y -stable since it is not longer maintained. Resolve BZ#502974

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[PATCH] nx-emu: fix inverted report of disable_nx
by Kees Cook 22 Nov '10

22 Nov '10

This nx-emu commit: http://git.kernel.org/?p=linux/kernel/git/frob/linux-2.6-roland.git;a=commi… was intended to replace "exec_shield" with "!disable_nx", but in x86_report_nx() it was not correctly inverted resulting in a backward report to dmesg about the state of nx-emu. Signed-off-by: Kees Cook <kees.cook(a)canonical.com> --- arch/x86/mm/setup_nx.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c index b936b25..1d7a269 100644 --- a/arch/x86/mm/setup_nx.c +++ b/arch/x86/mm/setup_nx.c @@ -42,7 +42,7 @@ void __init x86_report_nx(void) { if (!cpu_has_nx) { #ifdef CONFIG_X86_32 - if (disable_nx) + if (!disable_nx) printk(KERN_INFO "NX (Execute Disable) protection: " "approximated by x86 segment limits\n"); else -- 1.7.2.3 -- Kees Cook Ubuntu Security Team

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[PATCH] allow multiple debuginfo packages installed
by Aristeu Rozanski 22 Nov '10

22 Nov '10

Currently it's not possible to install multiple debuginfo packages in the same system. See: https://bugzilla.redhat.com/show_bug.cgi?id=435941 (unfortunately only available for RH engineers) This patch fixes the problem by simply changing the directory name where the kernel is built. Because normally the directory used will be linux-2.6.35.x86_64, linux-2.6.35-1 and linux-2.6.35-2 won't be allowed to co-exist because of file conflict. diff --git a/kernel.spec b/kernel.spec index 49d40e7..8e0a723 100644 --- a/kernel.spec +++ b/kernel.spec @@ -1135,13 +1135,13 @@ if [ -d linux-%{kversion}.%{_target_cpu} ]; then # Just in case we ctrl-c'd a prep already rm -rf deleteme.%{_target_cpu} # Move away the stale away, and delete in background. - mv linux-%{kversion}.%{_target_cpu} deleteme.%{_target_cpu} + mv linux-%{KVERREL} deleteme.%{_target_cpu} rm -rf deleteme.%{_target_cpu} & fi -cp -rl vanilla-%{vanillaversion} linux-%{kversion}.%{_target_cpu} +cp -rl vanilla-%{vanillaversion} linux-%{KVERREL} -cd linux-%{kversion}.%{_target_cpu} +cd linux-%{KVERREL} # released_kernel with possible stable updates %if 0%{?stable_base} @@ -1712,7 +1712,7 @@ rm -rf $RPM_BUILD_ROOT mkdir -p $RPM_BUILD_ROOT/boot mkdir -p $RPM_BUILD_ROOT%{_libexecdir} -cd linux-%{kversion}.%{_target_cpu} +cd linux-%{KVERREL} %if %{with_debug} BuildKernel %make_target %kernel_image debug @@ -1777,7 +1777,7 @@ find Documentation -type d | xargs chmod u+w %install -cd linux-%{kversion}.%{_target_cpu} +cd linux-%{KVERREL} %if %{with_doc} docdir=$RPM_BUILD_ROOT%{_datadir}/doc/kernel-doc-%{rpmversion}

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upstream exec-shield git tree
by Kees Cook 10 Nov '10

10 Nov '10

Hi, On Wed, Jul 14, 2010 at 01:16:03AM -0700, Roland McGrath wrote: > git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland.git > > Two branches: > > fedora/x86-nx-emulation > fedora/32bit-mmap-exec-randomization I'm in the process of trying to aim Debian at these as well (and I'm about to start the rebase of this for the next Ubuntu release), but it seems they're not up to date. I see that the brk fix and boot parameter changes I sent are mentioned[1] in the Fedora kernel: 2110 * Fri Sep 03 2010 Dave Jones <davej(a)redhat.com> 2.6.36-0.16.rc3.git0 2111 - exec-randomization: brk away from exec rand area (Kees Cook) 2112 2113 * Fri Sep 03 2010 Dave Jones <davej(a)redhat.com> 2114 - Remove the execshield boot parameter. 2115 Based on a patch from Kees Cook These seem to be [2] and [3], but I'd like to try to keep the main git branches up to date so there is a single place to coordinate. Roland, do you have a moment to get these committed to the main "upstream" branches? Thanks! -Kees [1] http://pkgs.fedoraproject.org/gitweb/?p=kernel.git;a=shortlog;h=refs/heads/… [2] http://pkgs.fedoraproject.org/gitweb/?p=kernel.git;a=commitdiff;h=55f50f1d1… [3] http://pkgs.fedoraproject.org/gitweb/?p=kernel.git;a=commitdiff;h=fff25a2ad… For this one, I'm not sure why the git view shows Dave as the author when I'm in the signed-off, but that's a whole other problem. :) -- Kees Cook Ubuntu Security Team

5 15

Dom0 xen support in Fedora 15?
by M A Young 10 Nov '10

10 Nov '10

I am trying to work out whether it is practical to propose Dom0 xen support as a feature for Fedora 15. The current situation is that patches to allow a kernel to boot as a xen Domain 0 are in 2.6.37 but they aren't enough to run a reasonable xen guest system from it. The xen developers are aiming to get enough drivers accepted in 2.6.38 so that you can run at least basic guest machines. Given the roughly 3 month kernel release cycle, I would expect Fedora 15 to ship with a 2.6.37.x kernel, with 2.6.38 coming out at around the time of the Fedora 15 release but too late for it to be included, and that Fedora 15 will move to 2.6.38 at some later point. Thus Fedora 15 should be usable as a xen Domain 0 at some point in its life cycle. However for xen dom0 support to be a Fedora 15 feature we would really need to have the appropriate drivers in the kernel when Fedora 15 ships, so my main question is how likely is it that backported xen drivers would be accepted into the Fedora kernel? I would also be interested in any other comments on this proposal. Michael Young

5 8

[pull request] 32bit-mmap-exec-randomization
by Kees Cook 09 Nov '10

09 Nov '10

The following changes since commit 05cda1144155d62cffb1a914a2083fbf4cdc372d: mmap randomization for executable mappings on 32-bit (2010-07-14 00:55:23 -0700) are available in the git repository at: git://kernel.ubuntu.com/kees/linux-2.6.git 32bit-mmap-exec-randomization Kees Cook (1): exec-randomization: brk away from exec rand area arch/x86/kernel/process.c | 12 +++++++++++- 1 files changed, 11 insertions(+), 1 deletions(-) -- Kees Cook Ubuntu Security Team

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kernel November 2010