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SubjectRe: nfs4 client bug
On 9/5/05, Jesper Juhl <jesper.juhl@gmail.com> wrote:
> On 9/5/05, Bret Towe <magnade@gmail.com> wrote:
> > On 9/4/05, J. Bruce Fields <bfields@fieldses.org> wrote:
> > > On Sun, Sep 04, 2005 at 08:08:22PM -0700, Bret Towe wrote:
> > > > On 9/4/05, J. Bruce Fields <bfields@fieldses.org> wrote:
> > > > > Do you get anything from alt-sysrq-T?
> > > >
> > > > no i havent used that im usally in x when its freezing
> > > > x wont even switch to console would it still give me anything then?
> > >
> > > Well, you can try something like:
> > > alt-sysrq-T
> > > wait a couple seconds, then
> > > alt-sysrq-S
> > > alt-sysrq-U
> > > alt-sysrq-B
> > > with maybe a second between each to give stuff a chance to get to disk.
> > >
> > > Then if you're lucky you may find the stack dumps in your log after you
> > > reboot.
> >
> > tried it and so far no luck ill keep trying a few more times and see
> > if i can get it
> > to spit somethin out to disk but i dont think ill be that lucky as that would
> > prob make life to easy wouldnt it?
>
> How about
>
> serial console over a cross-over cable to a second box.
> netconsole will let you put the console on a different box over the network.
> console on line printer will let you have a permanent record of the
> console output on paper.
>
> See
> Documentation/serial-console.txt
> Documentation/networking/netconsole.txt
> the help entry for "config LP_CONSOLE" (in drivers/char/Kconfig)
>
> Would any of those perhaps help you in capturing anything ?

netconsole++

got the following and ill be watching for anything that looks different
as i continue to push my luck

NMI Watchdog detected LOCKUP on CPU0CPU 0
Modules linked in: netconsole snd_seq_midi snd_emu10k1_synth
snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_pcm_oss
snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_emu10k1
snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer
snd_page_alloc snd_util_mem snd_hwdep snd w83627hf i2c_sensor i2c_isa
i2c_core usb_storage r8169 ehci_hcd uhci_hcd dm_mirror dm_snapshot
dm_mod
Pid: 14169, comm: xmms Tainted: G M 2.6.13
RIP: 0010:[<ffffffff80158d3b>] <ffffffff80158d3b>{cache_alloc_refill+347}
RSP: 0018:ffff81001306fa48 EFLAGS: 00000017
RAX: ffff81002f995c90 RBX: ffff81002f994800 RCX: ffff81000a8a9000
RDX: ffff81002f995c90 RSI: 000000000000000e RDI: ffff810005cfc028
RBP: ffff81002f995c80 R08: ffff81002f994810 R09: ffff81002f995ca0
R10: ffff81002f995cb0 R11: ffffffff80154a40 R12: ffff81002f995c90
R13: ffff81002f98d5c0 R14: 00000000000000d0 R15: ffffffff801e1550
FS: 0000000041802960(0063) GS:ffffffff805bc800(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002aaaab351000 CR3: 00000000297c8000 CR4: 00000000000006e0
Process xmms (pid: 14169, threadinfo ffff81001306e000, task ffff81001beae0b0)
Stack: ffff81002fb0f1c0 0000000000000000 ffff81001306faa8 00000000000000d0
ffff81002f995c80 ffff81002d450400 ffff81001306fb18 ffff810001bb2078
ffffffff801e1550 ffffffff80158a7d
Call Trace:<ffffffff801e1550>{nfs_find_actor+0}
<ffffffff80158a7d>{kmem_cache_alloc+77}
<ffffffff801e4305>{nfs_alloc_inode+21} <ffffffff80187fc2>{alloc_inode+18}
<ffffffff80188e48>{iget5_locked+200}
<ffffffff801e15c0>{nfs_init_locked+0}
<ffffffff801e191e>{nfs_fhget+110} <ffffffff801de5f5>{nfs_lookup+309}
<ffffffff801eede7>{_nfs4_proc_access+215}
<ffffffff8017d235>{do_lookup+229}
<ffffffff8017d801>{__link_path_walk+849}
<ffffffff8017e2aa>{link_path_walk+186}
<ffffffff8016f668>{get_unused_fd+88} <ffffffff8017e521>{path_lookup+385}
<ffffffff8017ed6f>{open_namei+175} <ffffffff8012d6e4>{deactivate_task+20}
<ffffffff8016f5e7>{filp_open+39} <ffffffff8016f668>{get_unused_fd+88}
<ffffffff8016f7b4>{sys_open+84} <ffffffff8010e8b6>{system_call+126}


Code: 4c 89 61 08 49 89 0c 24 85 f6 0f 8f 3c ff ff ff 8b 3b 89 f8
console shuts up ...
<0>Kernel panic - not syncing: Aiee, killing interrupt handler!
<6>SysRq : Show State

sibling
task PC pid father child younger older
init S 000000010001d013 0 1 0 2 (NOTLB)
ffff810001c61d88 0000000000000082 0000000000000000 ffffffff8048c4b8
ffff81001beaee10 ffff810001c5f440 ffff81001beaee10 ffff810001c5f658
ffff810001c5f440 0000001001c61e68
Call Trace:<ffffffff803a5744>{schedule_timeout+148}
<ffffffff80139a30>{process_timeout+0}
<ffffffff8017c052>{pipe_poll+66} <ffffffff80182d77>{do_select+967}
<ffffffff801828c0>{__pollwait+0} <ffffffff801830bc>{sys_select+748}
<ffffffff8010e8b6>{system_call+126}
ksoftirqd/0 S 0000000000000000 0 2 1 3 (L-TLB)
ffff810001c65f08 0000000000000046 ffff810001c65f18 ffff81002c8102b0
ffff810026a85110 ffff810001c5ed90 ffff810026a85110 ffff810001c5efa8
ffff810001c5f440 ffff810001c65f08
Call Trace:<ffffffff80135e60>{ksoftirqd+0} <ffffffff80135ea5>{ksoftirqd+69}
<ffffffff80135e60>{ksoftirqd+0} <ffffffff8014424d>{kthread+205}
<ffffffff8010f3e6>{child_rip+8} <ffffffff80144180>{kthread+0}
<ffffffff8010f3de>{child_rip+0}
events/0 R running task 0 3 1 4 2 (L-TLB)
khelper S ffff810001c3b300 0 4 1 5 3 (L-TLB)
ffff810001ef9e78 0000000000000046 0000000000000000 ffffffff80140040
ffff81002fbd0e90 ffff810001c5e030 ffff81002fbd0e90 ffff810001c5e248
ffff810001c3b330 ffff810001c3b320
Call Trace:<ffffffff80140040>{__call_usermodehelper+0}
<ffffffff801403c6>{worker_thread+278}
<ffffffff8012e060>{default_wake_function+0}
<ffffffff8012e060>{default_wake_function+0}
<ffffffff801402b0>{worker_thread+0} <ffffffff8014424d>{kthread+205}
<ffffffff8010f3e6>{child_rip+8} <ffffffff80144180>{kthread+0}
<ffffffff8010f3de>{child_rip+0}
kthread S ffff810001ec3300 0 5 1 7 147 4 (L-TLB)
ffff810001f1de78 0000000000000046 0000000000000000 ffff81002f9d5d28
ffff81002f9d34c0 ffff810001f1b480 ffff81002f9d34c0 ffff810001f1b698
ffff810001ec3330 ffff810001ec3320
Call Trace:<ffffffff801403c6>{worker_thread+278}
<ffffffff8012e060>{default_wake_function+0}
<ffffffff8012e060>{default_wake_function+0}
<ffffffff801402b0>{worker_thread+0}
<ffffffff8014424d>{kthread+205} <ffffffff8010f3e6>{child_rip+8}
<ffffffff80144180>{kthread+0} <ffffffff8010f3de>{child_rip+0}

kacpid S ffff810001ec30c0 0 7 5 90 (L-TLB)
ffff81002f911e78 0000000000000046 403b0520522700f8 604000005101c501
ffff810001c5f440 ffff810001f1add0 ffff810001c5f440 ffff810001f1afe8
c408018023918081 0000000000010000
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