Messages in this thread |  | | | Subject | Re: 2.6.9-rc2-mm4 ps hang ? | | From | Badari Pulavarty <> | | Date | 01 Oct 2004 17:19:34 -0700 |
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On Fri, 2004-10-01 at 16:49, Andrew Morton wrote: > Badari Pulavarty <pbadari@us.ibm.com> wrote: > > > > Here is the full sysrq-t output. > > What's this guy up to? ... > > Something is seriously screwed up if it's stuck in try_to_wake_up(). Tried > generating a few extra traces? > > Then again, maybe we're missing an up_read() somewhere. hrm, I'll check. >
It reproduced again. I think this is the one causing all the troubles..
db2fmcd D ffffffff80132e2a 0 10854 7636 (NOTLB) 00000101bae85ef8 0000000000000002 0000020800000018 00000101d9ddd550 0000000100000084 000001016d490e20 000001016d491158 00000101d9ddd550 0000000000000206 ffffffff801353cb Call Trace:<ffffffff801353cb>{try_to_wake_up+971} <ffffffff804455f0>{__down_write+128} <ffffffff80125e6f>{sys32_mmap+143} <ffffffff80124af1>{ia32_sysret+0} when I tried looking at /proc/10854 - it hung.
elm3b29:~ # cd /proc/10854 elm3b29:/proc/10854 # l
ls D 000000000051bb70 0 28029 27737 (NOTLB) 00000101ac9b1e28 0000000000000006 702e6d6574737973 ffffffff8054f240 000000000000009f 00000101df4fa9a0 00000101df4facd8 0000000000000000 000000d000000002 00000101ac9b1e68 Call Trace:<ffffffff80445692>{__down_read+130} <ffffffff801b79a9>{proc_exe_link+73} <ffffffff801b7745>{proc_pid_readlink+165} <ffffffff8018a511>{sys_readlink+161} <ffffffff8011075e>{system_call+126}
I have no idea what db2fmcd is stuck on. I will try to find out more..
Thanks, Badari
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