[Vserver] apache2 prefork and kernel oops

From: Randall Smith <randall_at_tnr.cc>
Date: Fri 02 Feb 2007 - 23:18:40 GMT
Message-ID: <eq0gsm$jq2$1@sea.gmane.org>

I'm trying to figure this out. I've got an i386 vserver with Etch on a
amd64 host with Etch. I was having kernel oops problems when stopping
the vserver so I started from scratch installing one app at a time and
stopping - starting the vserver. The culprit seems to be Apache2
Prefork, but I haven't any more details yet. Anyone run into this yet?
  I've got the console output and dmesg output below.

Randall

------------------------------------------------------------------------------------

-- console output

~$ sudo vserver vs1 stop

Message from syslogd@tnr at Fri Feb 2 17:14:54 2007 ...
tnr kernel: Oops: 0002 [3] SMP

Message from syslogd@tnr at Fri Feb 2 17:14:54 2007 ...
tnr kernel: CR2: ffff813d13ee119b
/usr/lib/util-vserver/vserver.functions: line 895: 4700 Killed
          $_VWAIT --timeout "$VSHELPER_SYNC_TIMEOUT" --status-fd 3 "$2"
>>$_is_tmpdir/out 2>$_is_tmpdir/err 3>$_is_tmpdir/fifo
/usr/lib/util-vserver/vserver.stop: line 85: 4703 Killed
    "${NICE_CMD[@]}" ${USE_VNAMESPACE:+$_VNAMESPACE --enter "$S_CONTEXT"
-- } $_VCONTEXT $SILENT_OPT --migrate --chroot --xid "$S_CONTEXT" --
"${INITCMD_STOP[@]}"

Message from syslogd@tnr at Fri Feb 2 17:14:54 2007 ...
tnr kernel: Oops: 0000 [4] SMP

Message from syslogd@tnr at Fri Feb 2 17:14:54 2007 ...
tnr kernel: CR2: ffff813d13ee1193
internal error: 'vwait' exited with an unexpected status ''; I will
try to continue but be prepared for unexpected events.

------------------------------------------------------------------------------------

-- dmesg output

Oops: 0000 [2] SMP
CPU 1
Modules linked in: nfs lockd nfs_acl sunrpc ppdev lp button ac battery
tun ipv6 cpufreq_userspace powernow_k8 freq_table w83627ehf i2c_isa loop
wm8775 cx25840 tuner snd_hda_intel snd_hda_codec ivtv snd_pcm_oss
firmware_class snd_pcm snd_mixer_oss i2c_algo_bit cx2341x tveeprom
videodev v4l1_compat snd_seq_dummy v4l2_common snd_seq_oss
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd irtty_sir
parport_pc floppy serio_raw i2c_nforce2 sir_dev soundcore snd_page_alloc
parport psmouse eth1394 i2c_core evdev irda pcspkr crc_ccitt ext3 jbd
mbcache dm_mirror dm_snapshot dm_mod raid456 xor raid1 md_mod
ide_generic sd_mod ide_cd cdrom sata_nv libata scsi_mod ohci1394
ieee1394 forcedeth amd74xx generic ide_core ehci_hcd ohci_hcd thermal
processor fan
Pid: 4438, comm: rc Not tainted 2.6.18-3-vserver-amd64 #1
RIP: 0010:[<ffffffff8027e45e>] [<ffffffff8027e45e>]
__wake_up_common+0x24/0x68
RSP: 0018:ffff810112b81cc8 EFLAGS: 00010092
RAX: 0000000000000292 RBX: ffff810119319188 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff810119319188
RBP: ffff810112b81cf8 R08: ffff813d19319193 R09: 0000000000000001
R10: ffff81012bbef2c0 R11: ffff810113bd11e8 R12: 0000000000000001
R13: 0000000000000001 R14: ffff810119319188 R15: 0000000000000000
FS: 00002b3d796f86d0(0000) GS:ffff81012fc6dc40(0000) knlGS:00000000f7da66c0
CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: ffff813d19319193 CR3: 0000000000201000 CR4: 00000000000006e0
Process rc (pid: 4438[#49153], threadinfo ffff810112b80000, task
ffff810113bd10c0)
Stack: 0000000100000000 ffff810119319188 0000000000000000 0000000000000001
  0000000000000292 0000000000000001 ffff810112b81d38 ffffffff8022d038
  0000000000000010 ffff810112b81d58 0000000000000010 ffff81012fc59780
Call Trace:
  [<ffffffff8022d038>] __wake_up+0x38/0x4f
  [<ffffffff80214181>] do_exit+0x901/0x948
  [<ffffffff80246e14>] cpuset_exit+0x0/0x6c
  [<ffffffff8022a295>] get_signal_to_deliver+0x4b0/0x4df
  [<ffffffff80228cb6>] do_signal+0x55/0x751
  [<ffffffff802271f3>] vfs_stat_fd+0x3c/0x4a
  [<ffffffff80220b9b>] __up_read+0x13/0x8a
  [<ffffffff8021c03f>] sigprocmask+0xb7/0xdb
  [<ffffffff8022f0dc>] sys_rt_sigprocmask+0x50/0xd9
  [<ffffffff8025b0d0>] retint_signal+0x3d/0x79

Code: 49 8b 18 eb 2a 49 8d 78 e8 45 8b 68 e8 4c 89 f9 8b 55 d0 8b
RIP [<ffffffff8027e45e>] __wake_up_common+0x24/0x68
  RSP <ffff810112b81cc8>
CR2: ffff813d19319193
  <1>Fixing recursive fault but reboot is needed!

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Received on Fri Feb 2 23:51:49 2007

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