Public bug reported:
Hi,
while upgrading to a newer sudo from hardy-proposed under UME, dpkg
crashed with SEGV when installing the package, just after unpack.
dmesg had this to say:
...
[ 62.899427] b44: eth0: Flow control is off for TX and off for RX.
[ 62.902382] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 65.760507] NET: Registered protocol family 17
[ 125.486423] ------------[ cut here ]------------
[ 125.486437] kernel BUG at
/build/buildd/linux-2.6.24/debian/build/custom-source-lpiacompat/fs/attr.c:138!
[ 125.486444] invalid opcode: 0000 [#1] SMP
[ 125.486449] Modules linked in: af_packet rfcomm l2cap i915 drm ipv6 sbs
sbshc container dock joydev hci_usb bluetooth usbtouchscreen wlan_scan_sta
ath_rate_sample snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc
snd_hwdep snd_seq_dummy video output ath_pci serio_raw wlan ath_hal(P) battery
ac button snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq
snd_timer snd_seq_device intel_agp agpgart pcspkr evdev shpchp snd pci_hotplug
iTCO_wdt iTCO_vendor_support soundcore psmouse sg ata_piix pata_acpi
ata_generic b44 ssb mii libata thermal thermal_sysfs processor fan fan_sysfs
fbcon tileblit font bitblit softcursor ext3 ext2 jbd mbcache loop nls_iso8859_1
nls_cp437 vfat fat squashfs unionfs usb_storage libusual sd_mod scsi_mod
ide_core uhci_hcd ehci_hcd usbhid hid usbcore
[ 125.486555]
[ 125.486561] Pid: 5518, comm: dpkg Tainted: P (2.6.24-12-lpiacompat #1)
[ 125.486567] EIP: 0060:[<c01a1dcb>] EFLAGS: 00010202 CPU: 0
[ 125.486578] EIP is at fnotify_change+0x29b/0x3a0
[ 125.486583] EAX: 481881a8 EBX: f071df10 ECX: 00001847 EDX: 00000000
[ 125.486589] ESI: e99d2650 EDI: 00001847 EBP: e99d2650 ESP: f071de58
[ 125.486595] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 125.486601] Process dpkg (pid: 5518, ti=f071c000 task=f074d540
task.ti=f071c000)
[ 125.486605] Stack: e99a2db0 c0196b3b 00000000 e996fc38 f071df5c f07789ed
00000001 00000000
[ 125.486618] e9968110 00000000 e99d2650 e996fc38 00000000 c01a1edf
00000000 f88cd3eb
[ 125.486629] f0772009 df88bf60 df88bf00 f79f67f8 df849180 f071df10
e996fee0 e99a2db0
[ 125.486641] Call Trace:
[ 125.486648] [<c0196b3b>] __link_path_walk+0xaab/0xe10
[ 125.486671] [<c01a1edf>] notify_change+0xf/0x20
[ 125.486680] [<f88cd3eb>] unionfs_setattr+0x27b/0x2b0 [unionfs]
[ 125.486713] [<c01a1ea7>] fnotify_change+0x377/0x3a0
[ 125.486733] [<c018b7c8>] chown_common+0xd8/0xf0
[ 125.486748] [<c0195e8a>] getname+0xaa/0xe0
[ 125.486764] [<c018b98b>] sys_chown+0x4b/0x70
[ 125.486789] [<c0197d3f>] sys_link+0x2f/0x40
[ 125.486801] [<c01053c2>] sysenter_past_esp+0x6b/0xa9
[ 125.486829] =======================
[ 125.486832] Code: 8b 54 24 0c 8b 42 0c 83 e8 80 e8 21 4d 17 00 e9 35 fe ff
ff 8b 3b 83 cf 01 89 3b 0f b7 45 6a 80 e4 f7 66 89 43 04 e9 e4 fd ff ff <0f> 0b
eb fe 90 81 23 ff bf ff ff 8b 44 24 0c e8 51 f8 03 00 85
[ 125.486887] EIP: [<c01a1dcb>] fnotify_change+0x29b/0x3a0 SS:ESP 0068:f071de58
[ 125.486903] ---[ end trace ebcf70505253c19f ]---
Let me know what additional info I can provide.
This is a serious bug if we can't install sudo (security updates) in the
next release... UME uses only unionfs.
Bye,
** Affects: linux-ubuntu-modules-2.6.24 (Ubuntu)
Importance: High
Status: Confirmed
** Tags: ume
** Changed in: linux-ubuntu-modules-2.6.24 (Ubuntu)
Importance: Undecided => High
--
BUG ON crash probably due to unionfs when installing sudo update with dpkg
https://bugs.launchpad.net/bugs/224754
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