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 -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html