[Bug 791019] Re: yama_ptracer_del lockdep warning

2012-01-30 Thread Paolo Pisati
** Changed in: linux-ti-omap4 (Ubuntu Natty)
   Status: New => Fix Released

** Changed in: linux-ti-omap4 (Ubuntu Oneiric)
   Status: Fix Committed => Fix Released

** Changed in: linux-ti-omap4 (Ubuntu)
   Status: Fix Committed => Fix Released

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  yama_ptracer_del lockdep warning

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-08-30 Thread Ming Lei
** Changed in: linux-ti-omap4 (Ubuntu Oneiric)
   Status: Triaged => Fix Committed

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-08-18 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 2.6.38-11.48

---
linux (2.6.38-11.48) natty-proposed; urgency=low

  [Herton R. Krzesinski]

  * Release Tracking Bug
- LP: #818175

  [ Upstream Kernel Changes ]

  * Revert "HID: magicmouse: ignore 'ivalid report id' while switching
modes"
- LP: #814250

linux (2.6.38-11.47) natty-proposed; urgency=low

  [Steve Conklin]

  * Release Tracking Bug
- LP: #811180

  [ Keng-Yu Lin ]

  * SAUCE: Revert: "dell-laptop: Toggle the unsupported hardware
killswitch"
- LP: #775281

  [ Ming Lei ]

  * SAUCE: fix yama_ptracer_del lockdep warning
- LP: #791019

  [ Stefan Bader ]

  * SAUCE: Re-enable RODATA for i386 virtual
- LP: #809838

  [ Tim Gardner ]

  * [Config] Add grub-efi as a recommended bootloader for server and
generic
- LP: #800910
  * SAUCE: rtl8192se: Force a build for a 2.6/3.0 kernel
- LP: #805494

  [ Upstream Kernel Changes ]

  * Revert "bridge: Forward reserved group addresses if !STP"
- LP: #793702
  * Fix up ABI directory
  * bonding: Incorrect TX queue offset, CVE-2011-1581
- LP: #792312
- CVE-2011-1581
  * fs/partitions/efi.c: corrupted GUID partition tables can cause kernel
oops
- LP: #795418
- CVE-2011-1577
  * usbnet/cdc_ncm: add missing .reset_resume hook
- LP: #793892
  * ath5k: Disable fast channel switching by default
- LP: #767192
  * mm: vmscan: correctly check if reclaimer should schedule during
shrink_slab
- LP: #755066
  * mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely
- LP: #755066
  * ALSA: hda - Use LPIB for ATI/AMD chipsets as default
- LP: #741825
  * ALSA: hda - Enable snoop bit for AMD controllers
- LP: #741825
  * ALSA: hda - Enable sync_write workaround for AMD generically
- LP: #741825
  * cpuidle: menu: fixed wrapping timers at 4.294 seconds
- LP: #774947
  * drm/i915: Fix gen6 (SNB) missed BLT ring interrupts.
- LP: #761065
  * USB: ehci: remove structure packing from ehci_def
- LP: #791552
  * drm/i915: disable PCH ports if needed when disabling a CRTC
- LP: #791752
  * kmemleak: Do not return a pointer to an object that kmemleak did not
get
- LP: #793702
  * kmemleak: Initialise kmemleak after debug_objects_mem_init()
- LP: #793702
  * Fix _OSC UUID in pcc-cpufreq
- LP: #793702
  * CPU hotplug, re-create sysfs directory and symlinks
- LP: #793702
  * Fix memory leak in cpufreq_stat
- LP: #793702
  * net: recvmmsg: Strip MSG_WAITFORONE when calling recvmsg
- LP: #793702
  * ftrace: Only update the function code on write to filter files
- LP: #793702
  * qla2xxx: Fix hang during driver unload when vport is active.
- LP: #793702
  * qla2xxx: Fix virtual port failing to login after chip reset.
- LP: #793702
  * qla2xxx: Fix vport delete hang when logins are outstanding.
- LP: #793702
  * powerpc/kdump64: Don't reference freed memory as pacas
- LP: #793702
  * powerpc/kexec: Fix memory corruption from unallocated slaves
- LP: #793702
  * x86, cpufeature: Fix cpuid leaf 7 feature detection
- LP: #793702
  * ath9k_hw: do noise floor calibration only on required chains
- LP: #793702
  * ath9k_hw: fix power for the HT40 duplicate frames
- LP: #793702
  * ath9k_hw: fix dual band assumption for XB113
- LP: #793702
  * ath9k_hw: Fix STA connection issues with AR9380 (XB113).
- LP: #793702
  * powerpc: Set nr_cpu_ids early and use it to free PACAs
- LP: #793702
  * powerpc/oprofile: Handle events that raise an exception without
overflowing
- LP: #793702
  * iwlagn: fix iwl_is_any_associated
- LP: #793702
  * block: rescan partitions on invalidated devices on -ENOMEDIA too
- LP: #793702
  * block: move bd_set_size() above rescan_partitions() in __blkdev_get()
- LP: #793702
  * paride: Convert to bdops->check_events()
- LP: #793702
  * gdrom,viocd: Convert to bdops->check_events()
- LP: #793702
  * ide: Convert to bdops->check_events()
- LP: #793702
  * block: don't block events on excl write for non-optical devices
- LP: #793702
  * block: Fix discard topology stacking and reporting
- LP: #793702
  * block: add proper state guards to __elv_next_request
- LP: #793702
  * block: always allocate genhd->ev if check_events is implemented
- LP: #793702
  * mtd: mtdconcat: fix NAND OOB write
- LP: #793702
  * mtd: return badblockbits back
- LP: #793702
  * x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address
limit
- LP: #793702
  * ext4: fix possible use-after-free in ext4_remove_li_request()
- LP: #793702
  * iwlwifi: fix bugs in change_interface
- LP: #793702
  * nl80211: Fix set_key regression with some drivers
- LP: #793702
  * mac80211: fix a few RCU issues
- LP: #793702
  * wire up fanotify syscalls
- LP: #793702
  * wire up clock_adjtime syscall
- LP: #793702
  * drm: Send pending vblank events before disabling v

[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-07-26 Thread Ming Lei
SRU Justification against Ubuntu-2.6.38-11.47:

- does fix the lockdep warning 
- normal function is good, and can boot well into natty

see attachment dmesg

** Attachment added: "2.6.38-11-generic.dmsg"
   
https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/791019/+attachment/2234095/+files/2.6.38-11-generic.dmsg

** Tags removed: verification-needed-natty
** Tags added: erification-done-natty

** Tags removed: erification-done-natty
** Tags added: verification-done-natty

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Title:
  yama_ptracer_del lockdep warning

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-07-25 Thread Ming Lei
In fact, I have done SRU Justification before submitting the patch into 
kernel-t...@lists.ubuntu.com.

see
 https://lists.ubuntu.com/archives/kernel-team/2011-June/016037.html

I am sure the patch did not affect normal function and only fixed the lockdep 
warning, and Tim
already Acked it.


thanks,

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-07-19 Thread Tim Gardner
SRU Justification

Impact: yama_ptracer_del can be called in softirq context causing
lockdep warnings

Patch Description: Use spin_lock_bh/spin_unlock_bh to protect list
manipulation against soft IRQ contexts.


** Patch added: "UBUNTU: SAUCE: fix yama_ptracer_del lockdep warning"
   
https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/791019/+attachment/2219596/+files/0001-UBUNTU-SAUCE-fix-yama_ptracer_del-lockdep-warning.patch

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-07-19 Thread Herton R. Krzesinski
This bug misses SRU justification, please update this bug with it as explained 
on
https://wiki.ubuntu.com/KernelTeam/StableHandbook/StableProcess#Workflow_for_SRU_Patches

Also, this bug is awaiting verification that the kernel in -proposed
solves the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
natty' to 'verification-done-natty'.

If verification is not done by one week from today, this fix will be
dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!

** Tags added: verification-needed-natty

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  yama_ptracer_del lockdep warning

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-07-08 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 3.0.0-4.5

---
linux (3.0.0-4.5) oneiric; urgency=low

  [ Ming Lei ]

  * SAUCE: fix yama_ptracer_del lockdep warning
- LP: #791019

  [ Seth Forshee ]

  * SAUCE: (drop after 3.0) asus-wmi: Add callback for hotkey filtering
  * SAUCE: (drop after 3.0) eeepc-wmi: Add support for T101MT Home/Express Gate 
key
  * SAUCE: (drop after 3.0) asus-wmi: Enable autorepeat for hotkey input device
  * [Config] CONFIG_{ASUS,ASUS_NB,EEEPC}_WMI=m
- LP: #805218

  [ Tim Gardner ]

  * [Config] updateconfigs after rebase to -rc6+
Rebased against 4dd1b49c6d215dc41ce50c80b4868388b93f31a3
  * Adopt a 3 digit verion, e.g., 3.0.0-x.x
  * Revert "UBUNTU: add dependancies for module-init-tools"
This dependency is no longer required for a 3 digit version.
 -- Tim GardnerTue, 05 Jul 2011 14:03:04 +0100

** Changed in: linux (Ubuntu Oneiric)
   Status: New => Fix Released

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-30 Thread Ming Lei
Now security_task_free is called from __put_task_struct in ubuntu kernel, and 
__put_task_struct c
can surely be called in softirq context.In upstream, there are no 
security_task_free at all.

If not calling security_task_free, where is it called from?  Seems depending on 
security implementation,
also more difficult fix will be involved than *_bh fix.

Any way,  using spin_[un]lock_bh is a easy fix, and no obvious
performance degrade is introduced.

I don't know security well, so let your guys decide how to fix this, :-)

thanks,

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-30 Thread Kees Cook
Thanks for catching this! Is this perhaps a problem at a higher level?
(I.e. should security_task_free be called in a different way so that its
hooks (like yama_ptracer_del) do not need to use the _bh locking
mechanisms?

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-29 Thread Tim Gardner
** Also affects: linux-ti-omap4 (Ubuntu Natty)
   Importance: Undecided
   Status: New

** Also affects: linux-ti-omap4 (Ubuntu Oneiric)
   Importance: Medium
 Assignee: Ming Lei (tom-leiming)
   Status: Triaged

** Also affects: linux (Ubuntu)
   Importance: Undecided
   Status: New

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-29 Thread Ming Lei
The attachment  patch does fix the warning,   yama_ptracer_del can be called in 
softirq context, also
can be run in common process context, so use spin_lock_bh to fix it.

** Attachment added: "fix_yama_lsm_lockdep_warning.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/791019/+attachment/2184348/+files/fix_yama_lsm_lockdep_warning.log

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-29 Thread Ming Lei
attach another lockdep warning in yama_ptracer_del path.

** Attachment added: "yama_ptracer_del-lockdep-warning.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/791019/+attachment/2184345/+files/yama_ptracer_del-lockdep-warning.log

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-06-20 Thread Bryan Wu
** Changed in: linux-ti-omap4 (Ubuntu)
 Assignee: (unassigned) => Ming Lei (tom-leiming)

** Changed in: linux-ti-omap4 (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux-ti-omap4 (Ubuntu)
   Status: New => Triaged

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[Bug 791019] Re: yama_ptracer_del lockdep warning

2011-05-31 Thread Ming Lei
** Attachment added: "yama-lockdep-warning.log"
   
https://bugs.edge.launchpad.net/bugs/791019/+attachment/2149973/+files/yama-lockdep-warning.log

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