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Bug#468343: marked as done (Page fault in nfs_complete_unlink)

Your message dated Wed, 14 May 2008 15:23:28 +0200
with message-id <20080514132328.GE5434@stro.at>
and subject line Re: Page fault in nfs_complete_unlink
has caused the Debian Bug report #468343,
regarding Page fault in nfs_complete_unlink
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.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
468343: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468343
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-2.6.18-6-amd64
Version: 2.6.18.dfsg.1-18etch1
Severity: critical
Justification: breaks the whole system


Kernel using Linux dove 2.6.18-6-amd64 #1 SMP on debian etch. On high i/o load (using qpopper or dovecot services) we get random kernel stack traces,. We cannot reproduce this problem. 
After that the server is unstable and continues random kernel stacktraces. Sometimes it stalled an nfs mountpoint and the only solution is reboot to get it back. (if you try to mount - 
umount the nfs volume you get NO success - nfs is still stalled - this behaviour is only after kernel stacktrace. We get the same behaviour on 2.6.18-1 to 2.6.18-6 and ONLY on 64bit 
systems. 32bit systems are fine with no problems on high i/o throughput.

I have attached some logs from messages.

Feb 28 12:21:26 dove kernel: PGD 1a422c067 PUD 0
Feb 28 12:21:26 dove kernel: CPU 1
Feb 28 12:21:26 dove kernel: Modules linked in: button ac battery ipt_LOG xt_limit xt_state xt_tcpudp iptable_filter iptable_mangle iptable_nat ip_nat ip_conntrack nfnetlink ip_tables 
x_tables n
fs lockd nfs_acl sunrpc bonding reiserfs dm_snapshot dm_mirror dm_mod loop joydev evdev pcspkr usbhid shpchp pci_hotplug i2c_i801 sg i2c_core sr_mod cdrom ext3 jbd mbcache generic 
ide_core sd_mo
d ata_piix bnx2 libata ehci_hcd e1000 uhci_hcd aacraid scsi_mod thermal processor fan
Feb 28 12:21:26 dove kernel: Pid: 17569, comm: imap Not tainted 2.6.18-6-amd64 #1
Feb 28 12:21:26 dove kernel: RIP: 0010:[<ffffffff88248955>]  [<ffffffff88248955>] :nfs:nfs_complete_unlink+0x10/0x97
Feb 28 12:21:26 dove kernel: RSP: 0018:ffff810118161eb8  EFLAGS: 00010206
Feb 28 12:21:26 dove kernel: RAX: ffff81003849a040 RBX: 0000000500000006 RCX: ffff8101d0bf95f8
Feb 28 12:21:26 dove kernel: RDX: 0000000000000000 RSI: ffff8101d0bf95c8 RDI: ffff81013757eb10
Feb 28 12:21:26 dove kernel: RBP: ffff81013757eb10 R08: 0000000000000000 R09: ffff8101d0bf96e0
Feb 28 12:21:26 dove kernel: R10: 0000000000000008 R11: ffffffff882404f4 R12: ffff8101d0bf95c8
Feb 28 12:21:26 dove kernel: R13: ffff81013757eb10 R14: ffff81023803c4c0 R15: 00000000005a9390
Feb 28 12:21:26 dove kernel: FS:  00002ba76ab8bc80(0000) GS:ffff8101fef75ac0(0000) knlGS:0000000000000000
Feb 28 12:21:26 dove kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Feb 28 12:21:26 dove kernel: CR2: 0000000500000016 CR3: 000000016bae9000 CR4: 00000000000006e0
Feb 28 12:21:26 dove kernel: Process imap (pid: 17569, threadinfo ffff810118160000, task ffff81003849a040)
Feb 28 12:21:26 dove kernel: Stack:  ffff8101d0bf95c8 ffff81013757eb10 ffff8101d0bf95c8 ffffffff88240525
Feb 28 12:21:26 dove kernel:  ffff8101d0bf95c8 ffff81013757eb10 ffff810238118780 ffffffff8020c9c7
Feb 28 12:21:26 dove kernel:  0000000000000008 0000000000000008 ffff810238118780 ffffffff80210a82
Feb 28 12:21:26 dove kernel: Call Trace:
Feb 28 12:21:26 dove kernel:  [<ffffffff88240525>] :nfs:nfs_dentry_iput+0x31/0x4f
Feb 28 12:21:26 dove kernel:  [<ffffffff8020c9c7>] dput+0x135/0x153
Feb 28 12:21:26 dove kernel:  [<ffffffff80210a82>] __fput+0x148/0x16e
Feb 28 12:21:26 dove kernel:  [<ffffffff80221c08>] filp_close+0x5c/0x64
Feb 28 12:21:26 dove kernel:  [<ffffffff8021bd30>] sys_close+0x88/0xa2
Feb 28 12:21:26 dove kernel:  [<ffffffff80257bd6>] system_call+0x7e/0x83
Feb 28 12:21:26 dove kernel:
Feb 28 12:21:26 dove kernel:
Feb 28 12:21:26 dove kernel: Code: 48 3b 6b 10 74 0a 48 8b 1b 48 85 db 75 f2 eb 72 ff 83 98 01
Feb 28 12:21:26 dove kernel:  RSP <ffff810118161eb8>

Feb 28 14:22:43 dove kernel: CPU 1
Feb 28 14:22:43 dove kernel: Modules linked in: button ac battery ipt_LOG xt_limit xt_state xt_tcpudp iptable_filter iptable_mangle iptable_nat ip_nat ip_conntrack nfnetlink ip_tables 
x_tables nfs lockd nfs_acl sunrpc bonding reiserfs dm_snapshot dm_mirror dm_mod loop joydev evdev pcspkr usbhid shpchp pci_hotplug i2c_i801 sg i2c_core sr_mod cdrom ext3 jbd mbcache 
generic ide_core sd_mod ata_piix bnx2 libata ehci_hcd e1000 uhci_hcd aacraid scsi_mod thermal processor fan
Feb 28 14:22:43 dove kernel: Pid: 17814, comm: imap Not tainted 2.6.18-6-amd64 #1
Feb 28 14:22:43 dove kernel: RIP: 0010:[<ffffffff88248955>]  [<ffffffff88248955>] :nfs:nfs_complete_unlink+0x10/0x97
Feb 28 14:22:43 dove kernel: RSP: 0018:ffff810030963eb8  EFLAGS: 00010286
Feb 28 14:22:43 dove kernel: RAX: ffff81001c5bd870 RBX: b6235dba03000000 RCX: ffff8102231bbdc8
Feb 28 14:22:43 dove kernel: RDX: 0000000000000000 RSI: ffff8102231bbd98 RDI: ffff8100be6db560
Feb 28 14:22:43 dove kernel: RBP: ffff8100be6db560 R08: 0000000000000000 R09: ffff8102231bbeb0
Feb 28 14:22:43 dove kernel: R10: 0000000000000008 R11: ffffffff882404f4 R12: ffff8102231bbd98
Feb 28 14:22:43 dove kernel: R13: ffff8100be6db560 R14: ffff81023803c5c0 R15: 00000000005a9390
Feb 28 14:22:43 dove kernel: FS:  00002af196b00c80(0000) GS:ffff8101fef75ac0(0000) knlGS:0000000000000000
Feb 28 14:22:43 dove kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Feb 28 14:22:43 dove kernel: CR2: 00002b671d946fc0 CR3: 0000000060b6e000 CR4: 00000000000006e0
Feb 28 14:22:43 dove kernel: Process imap (pid: 17814, threadinfo ffff810030962000, task ffff81001c5bd870)
Feb 28 14:22:43 dove kernel: Stack:  ffff8102231bbd98 ffff8100be6db560 ffff8102231bbd98 ffffffff88240525
Feb 28 14:22:43 dove kernel:  ffff8102231bbd98 ffff8100be6db560 ffff81019a2fa180 ffffffff8020c9c7
Feb 28 14:22:43 dove kernel:  0000000000000008 0000000000000008 ffff81019a2fa180 ffffffff80210a82
Feb 28 14:22:43 dove kernel: Call Trace:
Feb 28 14:22:43 dove kernel:  [<ffffffff88240525>] :nfs:nfs_dentry_iput+0x31/0x4f
Feb 28 14:22:43 dove kernel:  [<ffffffff8020c9c7>] dput+0x135/0x153
Feb 28 14:22:43 dove kernel:  [<ffffffff80210a82>] __fput+0x148/0x16e
Feb 28 14:22:43 dove kernel:  [<ffffffff80221c08>] filp_close+0x5c/0x64
Feb 28 14:22:43 dove kernel:  [<ffffffff8021bd30>] sys_close+0x88/0xa2
Feb 28 14:22:43 dove kernel:  [<ffffffff80257bd6>] system_call+0x7e/0x83
Feb 28 14:22:43 dove kernel:
Feb 28 14:22:43 dove kernel:
Feb 28 14:22:43 dove kernel: Code: 48 3b 6b 10 74 0a 48 8b 1b 48 85 db 75 f2 eb 72 ff 83 98 01
Feb 28 14:22:43 dove kernel:  RSP <ffff810030963eb8>

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-amd64
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.18-6-amd64 depends on:
ii  cor 5.97-5.3                             The GNU core utilities
ii  deb 1.5.11etch1                          Debian configuration management sy
ii  e2f 1.39+1.40-WIP-2006.11.14+dfsg-2etch1 ext2 file system utilities and lib
ii  ini 0.85h                                tools for generating an initramfs
ii  mod 3.3-pre4-2                           tools for managing Linux kernel mo

linux-image-2.6.18-6-amd64 recommends no packages.

-- debconf information:
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.18-6-amd64/postinst/old-initrd-link-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/postinst/old-dir-initrd-link-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/preinst/elilo-initrd-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/postinst/create-kimage-link-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/preinst/lilo-initrd-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/postinst/bootloader-test-error-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/preinst/bootloader-initrd-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/preinst/already-running-this-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/preinst/abort-overwrite-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/postinst/old-system-map-link-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/postinst/depmod-error-initrd-2.6.18-6-amd64: false
  linux-image-2.6.18-6-amd64/prerm/removing-running-kernel-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/preinst/failed-to-move-modules-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/prerm/would-invalidate-boot-loader-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/preinst/lilo-has-ramdisk:
  linux-image-2.6.18-6-amd64/preinst/abort-install-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/postinst/depmod-error-2.6.18-6-amd64: false
  linux-image-2.6.18-6-amd64/postinst/bootloader-error-2.6.18-6-amd64:
  linux-image-2.6.18-6-amd64/preinst/overwriting-modules-2.6.18-6-amd64: true
  linux-image-2.6.18-6-amd64/postinst/kimage-is-a-directory:
  linux-image-2.6.18-6-amd64/preinst/initrd-2.6.18-6-amd64:

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

thanks to Ben for the analysis

closing as 2.6.24 reached Etch thanks to the Ech+half initiative
-> http://wiki.debian.org/EtchAndAHalf

-- 
maks

--- End Message ---
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