On Sunday 08 March 2009, Heiko Carstens wrote:
> hmm.. (added Jonathan to cc list). So in theory this can only happen if
> acct_timexp is greater than stime + utime of the task.
> Just by looking at the code I would say that can't happen. ;)
>
> Could you try the patch below? Hopefully it gives us some more
> hints about how much the values are screwed up.
stime: 2ee0 utime: 1f40 acct_timexpd: 4e20 +
------------ cut here !------------
Kernel BUG at 000738d2 verbose debug info unavailable!
fixpoint divide exception: 0009 #1! SMP
Modules linked in: nfs lockd nfs_acl sunrpc ctcm fsm cu3088 tape_34xx ccwgroup
tape tape_class ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod
dasd_eckd_mod dasd_mod
CPU: 1 Not tainted 2.6.27.19-test #6
Process update-exim4.co (pid: 1239, task: 0fede9b8, ksp: 0f8dbe20)
Krnl PSW : 070c0000 800738d2 (acct_update_integrals+0x6a/0x140)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0
Krnl GPRS: 00000000 000007d0 0000002e 00000000
80035d42 00000000 00001f40 0fede9b8
00000000 00003e80 7fffffff fffff830
0fededa4 8007386e 800738c8 0f8dbe88
Krnl Code: 800738c8: a71807d0 lhi %r1,2000
800738cc: 8ca00001 srdl %r10,1
800738d0: 1da1 dr %r10,%r1
>800738d2: 5810d12e l %r1,302(%r13)
800738d6: 182b lr %r2,%r11
800738d8: 4130f068 la %r3,104(%r15)
800738dc: 0de1 basr %r14,%r1
800738de: 5800f068 l %r0,104(%r15)
Call Trace:
( <00000000000738c8>! acct_update_integrals+0x60/0x140)
<0000000000038502>! do_exit+0x106/0x7c0
<0000000000038c36>! do_group_exit+0x7a/0xb4
<0000000000038c8e>! SyS_exit_group+0x1e/0x30
<0000000000021c28>! sysc_do_restart+0x12/0x16
<0000000077ede924>! 0x77ede924
stime: 4e20 utime: 2fda0 acct_timexpd: 34bc0
------------ cut here !------------
Kernel BUG at 000738d2 verbose debug info unavailable!
fixpoint divide exception: 0009 #2! SMP
Modules linked in: nfs lockd nfs_acl sunrpc ctcm fsm cu3088 tape_34xx ccwgroup
tape tape_class ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod
dasd_eckd_mod dasd_mod
CPU: 0 Tainted: G D 2.6.27.19-test #6
Process modprobe (pid: 1947, task: 0f29b9b8, ksp: 0f243ed8)
Krnl PSW : 070c0000 800738d2 (acct_update_integrals+0x6a/0x140)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0
Krnl GPRS: 00000000 000007d0 00000030 00000000
80035d42 00000000 0002fda0 0f29b9b8
00000000 00033c20 7fffffff fffff830
0f29bda4 8007386e 800738c8 0f243e88
Krnl Code: 800738c8: a71807d0 lhi %r1,2000
800738cc: 8ca00001 srdl %r10,1
800738d0: 1da1 dr %r10,%r1
>800738d2: 5810d12e l %r1,302(%r13)
800738d6: 182b lr %r2,%r11
800738d8: 4130f068 la %r3,104(%r15)
800738dc: 0de1 basr %r14,%r1
800738de: 5800f068 l %r0,104(%r15)
Call Trace:
( <00000000000738c8>! acct_update_integrals+0x60/0x140)
<0000000000038502>! do_exit+0x106/0x7c0
<0000000000038c36>! do_group_exit+0x7a/0xb4
<0000000000038c8e>! SyS_exit_group+0x1e/0x30
<0000000000021c28>! sysc_do_restart+0x12/0x16
<0000000077f1f924>! 0x77f1f924
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