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Bug#486677: marked as done (linux-image-2.6.18-6-686: kernel hangs on fcntl lock (local DoS))

Your message dated Sat, 14 Apr 2012 16:20:40 +0100
with message-id <1334416840.7150.425.camel@deadeye>
and subject line Re: linux-image-2.6.18-6-686: kernel hangs on fcntl lock (local DoS)
has caused the Debian Bug report #486677,
regarding linux-image-2.6.18-6-686: kernel hangs on fcntl lock (local DoS)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
486677: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=486677
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-2.6.18-6-686
Version: 2.6.18.dfsg.1-18etch6
Severity: critical
Justification: breaks the whole system

System hangs when multiple threads use fcntl(2) F_SETLKW
to synchronize file accesses.

The bug is described in LKML (october 2007):
http://kerneltrap.org/mailarchive/linux-kernel/2007/10/17/346152

It is possible to reproduce it with this C test case:
http://lkml.org/lkml/2007/10/17/472

PS: I hit this bug when testing a home-made Apache module on
Debian Stable.

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-686
Locale: LANG=fr_CH.UTF-8, LC_CTYPE=fr_CH.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.18-6-686 depends on:
ii  coreutils                    5.97-5.3    The GNU core utilities
ii  debconf [debconf-2.0]        1.5.11etch1 Debian configuration management sy
ii  initramfs-tools [linux-initr 0.85h       tools for generating an initramfs
ii  module-init-tools            3.3-pre4-2  tools for managing Linux kernel mo

Versions of packages linux-image-2.6.18-6-686 recommends:
ii  libc6-i686             2.3.6.ds1-13etch5 GNU C Library: Shared libraries [i

-- debconf information:
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.18-6-686/preinst/elilo-initrd-2.6.18-6-686: true
* linux-image-2.6.18-6-686/preinst/already-running-this-2.6.18-6-686:
  linux-image-2.6.18-6-686/postinst/depmod-error-2.6.18-6-686: false
  linux-image-2.6.18-6-686/preinst/initrd-2.6.18-6-686:
  linux-image-2.6.18-6-686/postinst/old-initrd-link-2.6.18-6-686: true
  linux-image-2.6.18-6-686/preinst/bootloader-initrd-2.6.18-6-686: true
  linux-image-2.6.18-6-686/preinst/abort-install-2.6.18-6-686:
  linux-image-2.6.18-6-686/preinst/lilo-has-ramdisk:
  linux-image-2.6.18-6-686/preinst/overwriting-modules-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/bootloader-error-2.6.18-6-686:
  linux-image-2.6.18-6-686/prerm/would-invalidate-boot-loader-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/bootloader-test-error-2.6.18-6-686:
  linux-image-2.6.18-6-686/postinst/create-kimage-link-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/depmod-error-initrd-2.6.18-6-686: false
  linux-image-2.6.18-6-686/preinst/lilo-initrd-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/old-dir-initrd-link-2.6.18-6-686: true
  linux-image-2.6.18-6-686/preinst/failed-to-move-modules-2.6.18-6-686:
  linux-image-2.6.18-6-686/preinst/abort-overwrite-2.6.18-6-686:
  linux-image-2.6.18-6-686/prerm/removing-running-kernel-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/old-system-map-link-2.6.18-6-686: true
  linux-image-2.6.18-6-686/postinst/kimage-is-a-directory:

--- End Message ---
--- Begin Message --- 
Version: 2.6.23-1

This was fixed quite a while ago!

Ben.

-- 
Ben Hutchings
It is easier to change the specification to fit the program than vice versa.

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