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SubjectRe: unix sockets problems in 2.5.4-pre6?
Hello!

On Mon, Feb 11, 2002 at 05:02:33AM -0800, David S. Miller wrote:

> Ok. I do not know how to find who is holding teh lock, so here is
> full list of processes:
> Looks like memory corruption.
This is 100% reproducible, so I doubt it is harware problem.
The moment I start fetchmail, master process hangs.
Tried on 2.5.4-pre6 (2.5.4 cannot be compiled for me).
This is another list of processes.
It differs in the respect that some mail arrived, so local
delivery agents started and waiting for some locks, too,
so it may be of some interest.

Bye,
Oleg

free sibling
task PC stack pid father child younger older
init S C2135F30 48 1 0 763 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
keventd S C2139424 48 2 1 3 (L-TLB)
Call Trace: [context_thread+326/544] [kernel_thread+40/64]
ksoftirqd_CPU S F7DEE000 48 3 1 4 2 (L-TLB)
Call Trace: [ksoftirqd+171/240] [kernel_thread+40/64]
ksoftirqd_CPU S F7DEC000 48 4 1 5 3 (L-TLB)
Call Trace: [ksoftirqd+171/240] [kernel_thread+40/64]
kswapd S F7DDE000 816 5 1 6 4 (L-TLB)
Call Trace: [exit_files+49/64] [kswapd+137/196] [kernel_thread+40/64]
bdflush S 00000286 48 6 1 7 5 (L-TLB)
Call Trace: [interruptible_sleep_on+78/112] [bdflush+213/224] [kernel_thread+40/64]
kupdated D 00000002 48 7 1 9 6 (L-TLB)
Call Trace: [__wait_on_buffer+120/160] [flush_commit_list+951/1248] [do_journal_end+2334/3120] [flush_old_commits+292/320] [reiserfs_write_super+59/128]
[sync_supers+216/272] [sync_old_buffers+53/176] [block_prepare_write+80/128] [kupdate+365/384] [kernel_thread+40/64]
khubd S 00000286 48 9 1 11 7 (L-TLB)
Call Trace: [interruptible_sleep_on+78/112] [usb_hub_thread+79/176] [kernel_thread+40/64]
kreiserfsd S F7771FB4 688 11 1 108 9 (L-TLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [interruptible_sleep_on_timeout+82/128] [reiserfs_journal_commit_thread+261/368] [kernel_thread+40/64]
scsi_eh_0 S F735BFDC 48 108 1 313 11 (L-TLB)
Call Trace: [__down_interruptible+138/256] [__down_failed_interruptible+7/12] [.text.lock.scsi_error+197/218] [kernel_thread+40/64]
sshd S 7FFFFFFF 48 313 1 329 108 (NOTLB)
Call Trace: [schedule_timeout+20/160] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
syslogd S 7FFFFFFF 48 329 1 332 313 (NOTLB)
Call Trace: [datagram_poll+36/214] [schedule_timeout+20/160] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
klogd R F7268000 48 332 1 379 329 (NOTLB)
Call Trace: [do_syslog+212/960] [kmsg_read+17/32] [sys_read+150/208] [syscall_call+7/11]
atd S F725FF8C 624 379 1 410 332 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [sys_nanosleep+282/481] [syscall_call+7/11]
in.identd S 7FFFFFFF 48 410 1 412 520 379 (NOTLB)
Call Trace: [schedule_timeout+20/160] [wait_for_connect+259/480] [tcp_accept+186/576] [inet_accept+44/448] [sys_accept+102/256]
[get_empty_filp+212/304] [schedule+950/1024] [sys_socketcall+179/512] [syscall_call+7/11]
in.identd S F7245F2C 48 412 410 414 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_poll+197/240] [sys_poll+477/742] [schedule+950/1024]
[syscall_call+7/11]
in.identd S F723FFB0 48 413 412 414 (NOTLB)
Call Trace: [sys_rt_sigsuspend+282/320] [syscall_call+7/11]
in.identd S F723DFB0 48 414 412 413 (NOTLB)
Call Trace: [sys_rt_sigsuspend+282/320] [syscall_call+7/11]
master R F7246C84 48 520 1 855 571 410 (NOTLB)
Call Trace: [__write_lock_failed+7/32] [.text.lock.open+71/137] [unix_create+92/112] [sock_map_fd+12/304] [select_bits_free+10/16]
[sys_socket+29/96] [sys_socket+48/96] [sys_socketcall+99/512] [syscall_call+7/11]
pickup S F710BF30 0 522 520 523 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
qmgr S F7105F30 48 523 520 524 522 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
tlsmgr S F70FFF30 544 524 520 563 523 (NOTLB)
Call Trace: [__pollwait+142/160] [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152]
[syscall_call+7/11]
trivial-rewri S 7FFFFFFF 48 563 520 564 524 (NOTLB)
Call Trace: [schedule_timeout+20/160] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
smtp S F70DBF30 48 564 520 849 563 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
kdm S F7073FB0 48 571 1 602 601 520 (NOTLB)
Call Trace: [sys_rt_sigsuspend+282/320] [syscall_call+7/11]
X S F7065F30 48 597 571 602 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
ntpd S 7FFFFFFF 48 601 1 617 571 (NOTLB)
Call Trace: [datagram_poll+36/214] [schedule_timeout+20/160] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
kdm S F707C000 48 602 571 753 597 (NOTLB)
Call Trace: [pipe_wait+129/176] [pipe_read+179/512] [sys_read+150/208] [syscall_call+7/11]
cron S F7031F8C 752 617 1 826 664 601 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [sys_nanosleep+282/481] [syscall_call+7/11]
gpm S F6F53F30 48 664 1 744 617 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
login S 00000000 48 744 1 764 745 664 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
login S 00000000 48 745 1 777 746 744 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
login S 00000000 48 746 1 810 747 745 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
mingetty S 7FFFFFFF 48 747 1 748 746 (NOTLB)
Call Trace: [schedule_timeout+20/160] [read_chan+892/1920] [read_chan+973/1920] [tty_read+220/320] [sys_read+150/208]
[syscall_call+7/11]
mingetty S 7FFFFFFF 48 748 1 749 747 (NOTLB)
Call Trace: [schedule_timeout+20/160] [read_chan+892/1920] [read_chan+973/1920] [tty_read+220/320] [sys_read+150/208]
[syscall_call+7/11]
mingetty S 7FFFFFFF 48 749 1 763 748 (NOTLB)
Call Trace: [schedule_timeout+20/160] [read_chan+892/1920] [read_chan+973/1920] [tty_read+220/320] [sys_read+150/208]
[syscall_call+7/11]
kdm_greet S F6DF7F30 48 753 602 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
xconsole S 7FFFFFFF 48 763 1 749 (NOTLB)
Call Trace: [schedule_timeout+20/160] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
bash S 00000000 48 764 744 790 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
bash S 00000000 48 777 745 805 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
su S 00000000 48 790 764 791 (NOTLB)
Call Trace: [sys_wait4+958/1024] [syscall_call+7/11]
bash S 7FFFFFFF 48 791 790 (NOTLB)
Call Trace: [schedule_timeout+20/160] [read_chan+892/1920] [read_chan+973/1920] [tty_read+220/320] [sys_read+150/208]
[syscall_call+7/11]
mutt S F6B23F30 496 805 777 (NOTLB)
Call Trace: [normal_poll+259/287] [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152]
[syscall_call+7/11]
bash S 7FFFFFFF 48 810 746 (NOTLB)
Call Trace: [schedule_timeout+20/160] [read_chan+892/1920] [read_chan+973/1920] [tty_read+220/320] [sys_read+150/208]
[syscall_call+7/11]
cron Z C212F180 48 825 617 826 (L-TLB)
Call Trace: [do_exit+745/784] [sys_exit+14/16] [syscall_call+7/11]
cron Z C212F180 432 826 617 825 (L-TLB)
Call Trace: [do_exit+745/784] [sys_exit+14/16] [syscall_call+7/11]
smtpd S F69A3F30 48 849 520 850 564 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
cleanup S F6943F30 48 850 520 851 849 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
local S F690BF50 48 851 520 852 850 (NOTLB)
Call Trace: [interruptible_sleep_on_locked+120/208] [locks_block_on+28/48] [flock_lock_file+242/384] [sys_flock+195/272] [syscall_call+7/11]
local S F68E7F30 48 852 520 855 851 (NOTLB)
Call Trace: [schedule_timeout+128/160] [process_timeout+0/16] [do_select+470/544] [sys_select+832/1152] [syscall_call+7/11]
local S F68D9F50 48 855 520 852 (NOTLB)
Call Trace: [interruptible_sleep_on_locked+120/208] [locks_block_on+28/48] [flock_lock_file+242/384] [sys_flock+195/272] [syscall_call+7/11]
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