Letting my little Toshiba Satellite download an opensuse install DVD (at
20 KiB/s so I can use the other half of my wonderful bandwidth for
work), after it has been up over night, if I mount my desktop box, and
try to install a kernel to later test, laptop goes comatose. It might
be workqueue related. Interrupts are still happening, I can ping and
poke sysrq-c, but box is completely useless.
I got kdump working again (finally), and crashed it this morning. Now a
few hours later, it fails to repeat of course, _seems_ it requires me
leaving it alone for an extended period to repeat.
I've switched kernels a few times, and it _seems_ to only happen with
3.8-rt, though I can't really be rock solid about that, can only say
3.8-rt has jammed up a few times, and no other kernel has.
When make modules_install install hung first thing this morning, box was
responsive enough to fire up top, which displayed nada. Desktop then
froze, so I crashed it. Seems completion ain't gonna happen.
Trying to repeat, now that I can crashdump the thing again.
KERNEL: vmlinux
DUMPFILE: vmcore
CPUS: 2
DATE: Mon May 13 07:56:02 2013
UPTIME: 15:27:46
LOAD AVERAGE: 1.84, 0.89, 0.38
TASKS: 308
NODENAME: maggy
RELEASE: 3.8.11-rt8-smp
VERSION: #35 SMP PREEMPT RT Tue May 7 15:11:32 CEST 2013
MACHINE: x86_64 (1296 Mhz)
MEMORY: 3.8 GB
PANIC: "Oops: 0002 [#1] PREEMPT SMP " (check log for details)
PID: 44
COMMAND: "irq/1-i8042"
TASK: ffff880134f760c0 [THREAD_INFO: ffff8801349b2000]
CPU: 0
STATE: TASK_RUNNING (PANIC)
crash> ps|grep UN
3465 1 0 ffff880137d72600 UN 0.7 495440 37744 konsole
8743 3684 1 ffff8800a645c200 UN 0.0 9000 948 make
crash> bt 8743
PID: 8743 TASK: ffff8800a645c200 CPU: 1 COMMAND: "make"
#0 [ffff8800aace1828] __schedule at ffffffff8143b975
#1 [ffff8800aace18b0] schedule at ffffffff8143bfb9
#2 [ffff8800aace18c0] rpc_wait_bit_killable at ffffffffa06b6fa9 [sunrpc]
#3 [ffff8800aace18e0] __wait_on_bit at ffffffff8143ae7f
#4 [ffff8800aace1930] out_of_line_wait_on_bit at ffffffff8143af2c
#5 [ffff8800aace19a0] __rpc_wait_for_completion_task at ffffffffa06b6f6d [sunrpc]
#6 [ffff8800aace19b0] nfs4_run_open_task.isra.37 at ffffffffa07d3504 [nfsv4]
#7 [ffff8800aace1a40] _nfs4_proc_open at ffffffffa07d393b [nfsv4]
#8 [ffff8800aace1a70] _nfs4_do_open at ffffffffa07d5c58 [nfsv4]
#9 [ffff8800aace1b10] nfs4_do_open at ffffffffa07d5f82 [nfsv4]
#10 [ffff8800aace1bb0] nfs4_atomic_open at ffffffffa07d6070 [nfsv4]
#11 [ffff8800aace1be0] nfs4_file_open at ffffffffa07e2c62 [nfsv4]
#12 [ffff8800aace1c80] do_dentry_open.isra.16 at ffffffff81159676
#13 [ffff8800aace1cd0] finish_open at ffffffff81159722
#14 [ffff8800aace1cf0] do_last at ffffffff8116a1d9
#15 [ffff8800aace1da0] path_openat at ffffffff8116a5d3
#16 [ffff8800aace1e50] do_filp_open at ffffffff8116add2
#17 [ffff8800aace1f10] do_sys_open at ffffffff8115aade
#18 [ffff8800aace1f70] sys_open at ffffffff8115abe1
#19 [ffff8800aace1f80] system_call_fastpath at ffffffff814451c2
RIP: 00007f250a821fd0 RSP: 00007fff1755c4d8 RFLAGS: 00000202
RAX: 0000000000000002 RBX: ffffffff814451c2 RCX: ffffffffffffffff
RDX: 00000000000001b6 RSI: 0000000000000000 RDI: 0000000000647a0e
RBP: 00007fff1755c4c0 R8: 0000000000000008 R9: 0000000000000001
R10: 000000000041fef0 R11: 0000000000000246 R12: ffffffff8115abe1
R13: ffff8800aace1f78 R14: 00000000006474c0 R15: 0000000000000000
ORIG_RAX: 0000000000000002 CS: 0033 SS: 002b
crash> bt 8748
PID: 8748 TASK: ffff8800a675a280 CPU: 1 COMMAND: "top"
#0 [ffff8800b148fd68] __schedule at ffffffff8143b975
#1 [ffff8800b148fdf0] schedule at ffffffff8143bfb9
#2 [ffff8800b148fe00] n_tty_write at ffffffff812c22bb
#3 [ffff8800b148fe90] tty_write at ffffffff812bf0e1
#4 [ffff8800b148ff00] vfs_write at ffffffff8115b49f
#5 [ffff8800b148ff30] sys_write at ffffffff8115b7a2
#6 [ffff8800b148ff80] system_call_fastpath at ffffffff814451c2
RIP: 00007f162d275220 RSP: 00007fff7fa2ef90 RFLAGS: 00000296
RAX: 0000000000000001 RBX: ffffffff814451c2 RCX: 0000000000000005
RDX: 0000000000000800 RSI: 0000000000616820 RDI: 0000000000000001
RBP: 0000000000616820 R8: 0000000000000020 R9: 00007f162db7b700
R10: 00007f162d1e626a R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000800 R14: 00007f162d53d140 R15: 0000000000000800
ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b
crash> bt 3465
PID: 3465 TASK: ffff880137d72600 CPU: 0 COMMAND: "konsole"
#0 [ffff880133361838] __schedule at ffffffff8143b975
#1 [ffff8801333618c0] schedule at ffffffff8143bfb9
#2 [ffff8801333618d0] schedule_timeout at ffffffff8143abed
#3 [ffff880133361980] wait_for_common at ffffffff8143b4af
#4 [ffff880133361a00] wait_for_completion at ffffffff8143b5ed
#5 [ffff880133361a10] flush_work at ffffffff8105bf79
#6 [ffff880133361a60] tty_flush_to_ldisc at ffffffff812c7d94
#7 [ffff880133361a70] n_tty_poll at ffffffff812c1eea
#8 [ffff880133361ab0] tty_poll at ffffffff812bed82
#9 [ffff880133361af0] do_poll.isra.7 at ffffffff8116e175
#10 [ffff880133361b80] do_sys_poll at ffffffff8116f149
#11 [ffff880133361f40] sys_poll at ffffffff8116f28b
#12 [ffff880133361f80] system_call_fastpath at ffffffff814451c2
RIP: 00007fefe00b913f RSP: 00007fff7a198f70 RFLAGS: 00000202
RAX: 0000000000000007 RBX: ffffffff814451c2 RCX: 0000000000e96368
RDX: 0000000000000007 RSI: 0000000000000020 RDI: 0000000000e69ed0
RBP: 0000000000000020 R8: 0000000000000000 R9: 0000000000000d89
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000007
R13: 0000000000e69ed0 R14: 0000000000612eb0 R15: 0000000000727cb8
ORIG_RAX: 0000000000000007 CS: 0033 SS: 002b
crash> ps|grep kworker
5 2 0 ffff88013b306140 IN 0.0 0 0 [kworker/0:0H]
7 2 0 ffff88013b3101c0 IN 0.0 0 0 [kworker/u:0H]
18 2 1 ffff88013b36c4c0 IN 0.0 0 0 [kworker/1:0]
19 2 1 ffff88013b370500 IN 0.0 0 0 [kworker/1:0H]
192 2 0 ffff88013476e380 IN 0.0 0 0 [kworker/0:1H]
194 2 1 ffff88013397e300 IN 0.0 0 0 [kworker/1:1H]
824 2 1 ffff880139662580 IN 0.0 0 0 [kworker/u:1H]
5371 2 0 ffff88009bae86c0 IN 0.0 0 0 [kworker/0:0]
5375 2 0 ffff8800a73b07c0 IN 0.0 0 0 [kworker/0:2]
8478 2 1 ffff8800378ac340 IN 0.0 0 0 [kworker/u:2]
8485 2 1 ffff88009c2b03c0 IN 0.0 0 0 [kworker/1:1]
8537 2 0 ffff8800b1660200 IN 0.0 0 0 [kworker/u:0]
8731 2 0 ffff8800a667c0c0 IN 0.0 0 0 [kworker/u:1]
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