Bug 105207

Summary:	Kernel Assertion failure and cvs segfault (2.6.11-gentoo-r4)
Product:	Gentoo Linux	Reporter:	Michael Stewart (vericgar) (RETIRED) <vericgar>
Component:	[OLD] Core system	Assignee:	Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Status:	RESOLVED INVALID
Severity:	minor
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Michael Stewart (vericgar) (RETIRED) gentoo-dev

2005-09-07 19:44:26 UTC

When doing a cvs up on the portage tree, cvs segfaulted, and sysklogd sent the
following message to the shell (I neglected to write it down, pulled this from
the logfile after rebooting):

Sep  7 19:10:38 phoenix kernel: Assertion failure in __flush_buffer() at
fs/jbd/checkpoint.c:247: "!buffer_jwrite(bh)"

After that, the system proceeded to collapse in on itself as each peice of
software tried to access the disk and none could.

Sep  7 19:10:38 phoenix kernel: ------------[ cut here ]------------
Sep  7 19:10:38 phoenix kernel: kernel BUG at <bad filename>:50307!
Sep  7 19:10:38 phoenix kernel: invalid operand: 0000 [#1]
Sep  7 19:10:38 phoenix kernel: PREEMPT SMP
Sep  7 19:10:38 phoenix kernel: Modules linked in: ipt_REJECT iptable_filter
ipt_MASQUERADE iptable_nat ip_conntrack ip_tables md5 ipv6 rtc parport_pc
parport floppy e100 es1371 soundcore ac97_codec acenic pcnet32 mii aic7xxx evdev
ohci_hcd uhci_hcd usb_storage ehci_hcd
Sep  7 19:10:38 phoenix kernel: CPU:    1
Sep  7 19:10:38 phoenix kernel: EIP:    0060:[<c018a7aa>]    Not tainted VLI
Sep  7 19:10:38 phoenix kernel: EFLAGS: 00010202   (2.6.11-gentoo-r4)
Sep  7 19:10:38 phoenix kernel: eax: 0000005a   ebx: e8526798   ecx: df9e7d18  
edx: c02cbee0
Sep  7 19:10:38 phoenix kernel: esi: df9e7d60   edi: df9e7d64   ebp: 00000000  
esp: df9e7d14
Sep  7 19:10:38 phoenix kernel: ds: 007b   es: 007b   ss: 0068
Sep  7 19:10:38 phoenix kernel: Process cvs (pid: 23780, threadinfo=df9e6000
task=c4c7c550)
Sep  7 19:10:39 phoenix kernel: Stack: c02cbee0 c02b66c3 c02ca00a 000000f7
c02ca01e d7446dac f79b1400 e8526798
Sep  7 19:10:39 phoenix kernel:        f79b14e4 c018a90e f79b1400 d7446dac
df9e7d68 df9e7d60 df9e7d64 0010ea4d
Sep  7 19:10:39 phoenix kernel:        d744653c c8cac86c d74242e0 0000003e
0000005a e8526798 c754caa4 c754cf50
Sep  7 19:10:39 phoenix kernel: Call Trace:
Sep  7 19:10:39 phoenix kernel:  [<c018a90e>]
Sep  7 19:10:39 phoenix kernel:  [<c018a456>]
Sep  7 19:10:39 phoenix kernel:  [<c0186aa4>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0111685>]
Sep  7 19:10:39 phoenix kernel:  [<c0158673>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0186b9e>]
Sep  7 19:10:39 phoenix kernel:  [<c017ea12>]
Sep  7 19:10:39 phoenix kernel:  [<c01518b7>]
Sep  7 19:10:39 phoenix kernel:  [<c01519bb>]
Sep  7 19:10:39 phoenix kernel:  [<c0143e12>]
Sep  7 19:10:39 phoenix kernel:  [<c0102221>]
Sep  7 19:10:39 phoenix kernel: Code: c4 14 f0 ff 43 0c 8b 03 f6 c4 40 74 23 68
1e a0 2c c0 68 f7 00 00 00 68 0a a0 2c c0 68 c3 66 2b c0 68 e0 be 2c c0 e8 e3 ab
f8 ff <0f> 0b 83 c4 14 f0 0f ba 2b 0e 8b 06 8b 54 24 1c 89 1c 82 8b 03
Sep  7 19:10:39 phoenix kernel:  <6>note: cvs[23780] exited with preempt_count 2
Sep  7 19:10:39 phoenix kernel: scheduling while atomic: cvs/0x10000002/23780
Sep  7 19:10:39 phoenix kernel:  [<c02ae0a4>]
Sep  7 19:10:39 phoenix kernel:  [<c013dc86>]
Sep  7 19:10:39 phoenix kernel:  [<c02af099>]
Sep  7 19:10:39 phoenix kernel:  [<c0136f50>]
Sep  7 19:10:39 phoenix kernel:  [<c013ace9>]
Sep  7 19:10:39 phoenix kernel:  [<c011323c>]
Sep  7 19:10:39 phoenix kernel:  [<c0117107>]
Sep  7 19:10:39 phoenix kernel:  [<c01035a8>]
Sep  7 19:10:39 phoenix kernel:  [<c0103341>]
Sep  7 19:10:39 phoenix kernel:  [<c0103622>]
Sep  7 19:10:39 phoenix kernel:  [<c018a7aa>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b82>]
Sep  7 19:10:39 phoenix kernel:  [<c0111638>]
Sep  7 19:10:39 phoenix kernel:  [<c0111685>]
Sep  7 19:10:39 phoenix kernel:  [<c0102cf7>]
Sep  7 19:10:39 phoenix kernel:  [<c018a7aa>]
Sep  7 19:10:39 phoenix kernel:  [<c018a90e>]
Sep  7 19:10:39 phoenix kernel:  [<c018a456>]
Sep  7 19:10:39 phoenix kernel:  [<c0186aa4>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0111685>]
Sep  7 19:10:39 phoenix kernel:  [<c0158673>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0186b9e>]
Sep  7 19:10:39 phoenix kernel:  [<c017ea12>]
Sep  7 19:10:39 phoenix kernel:  [<c01518b7>]
Sep  7 19:10:39 phoenix kernel:  [<c01519bb>]
Sep  7 19:10:39 phoenix kernel:  [<c0143e12>]
Sep  7 19:10:39 phoenix kernel:  [<c0102221>]
Sep  7 19:10:39 phoenix kernel: scheduling while atomic: cvs/0x10000002/23780
Sep  7 19:10:39 phoenix kernel:  [<c02ae0a4>]
Sep  7 19:10:39 phoenix kernel:  [<c013dc86>]
Sep  7 19:10:39 phoenix kernel:  [<c02af099>]
Sep  7 19:10:39 phoenix kernel:  [<c0136f50>]
Sep  7 19:10:39 phoenix kernel:  [<c013ace9>]
Sep  7 19:10:39 phoenix kernel:  [<c011323c>]
Sep  7 19:10:39 phoenix kernel:  [<c0117107>]
Sep  7 19:10:39 phoenix kernel:  [<c01035a8>]
Sep  7 19:10:39 phoenix kernel:  [<c0103341>]
Sep  7 19:10:39 phoenix kernel:  [<c0103622>]
Sep  7 19:10:39 phoenix kernel:  [<c018a7aa>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b82>]
Sep  7 19:10:39 phoenix kernel:  [<c0111638>]
Sep  7 19:10:39 phoenix kernel:  [<c0111685>]
Sep  7 19:10:39 phoenix kernel:  [<c0102cf7>]
Sep  7 19:10:39 phoenix kernel:  [<c018a7aa>]
Sep  7 19:10:39 phoenix kernel:  [<c018a90e>]
Sep  7 19:10:39 phoenix kernel:  [<c018a456>]
Sep  7 19:10:39 phoenix kernel:  [<c0186aa4>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0111685>]
Sep  7 19:10:39 phoenix kernel:  [<c0158673>]
Sep  7 19:10:39 phoenix kernel:  [<c0125b6a>]
Sep  7 19:10:39 phoenix kernel:  [<c0186b9e>]
Sep  7 19:10:39 phoenix kernel:  [<c017ea12>]
Sep  7 19:10:39 phoenix kernel:  [<c01518b7>]
Sep  7 19:10:39 phoenix kernel:  [<c01519bb>]
Sep  7 19:10:39 phoenix kernel:  [<c0143e12>]
Sep  7 19:10:39 phoenix kernel:  [<c0102221>]

I'm not sure if this is just an issue with my machine, or if it's a genuine
kernel bug. I'm hoping that someone with more experience with the kernel can
figure that out. Let me know if there's anything more you need me to provide.

Comment 1 Daniel Drake (RETIRED) gentoo-dev

2005-09-08 00:11:36 UTC

Is this reproducible on gentoo-sources-2.6.13? You also need to compile with
CONFIG_KALLSYMS for the error messages to be useful.

Comment 2 Michael Stewart (vericgar) (RETIRED) gentoo-dev

2005-09-17 17:28:46 UTC

I've been unable to reproduce my own bug, I'm going to chalk it up to a machine
that is slowly dieing.