process stuck in vmopar

[pluknet]

2008/12/24 pluknet <pluknet at gmail.com>:
> 2008/12/24 pluknet <pluknet at gmail.com>:
>> 2008/12/24 pluknet <pluknet at gmail.com>:
>>> Server version: Apache/2.2.11 (Unix) built from sources.
>>>
>>> After issuing kill -9 process stuck in vmopar state forever.
>>> aaa301      2313  0.0  0.0     0     8  ??  DE    3:10PM   0:00.01
>>> /home/aaa301/myb vmopar
>>>
>>> System: FreeBSD 6.2 i386.
>>>
>>
>> One important note.
>> Kernel is built with options QUOTA, and this problem triggered
>> only when this user is overquoted (usage > quota and limit).
>
> A bit later various processes begin to stuck in "ufs" state.

backtrace of process that stucks in vmopar:

db> bt 1385
Tracing pid 1385 tid 100181 td 0xc6c19960
sched_switch(c6c19960,0,1) at sched_switch+0x15b
mi_switch(1,0) at mi_switch+0x270
sleepq_switch(c2954ec8,c0a3d0a0,0,c094c4eb,211,...) at sleepq_switch+0xc1
sleepq_wait(c2954ec8,0,c096897c,709,c096897c,...) at sleepq_wait+0x46
msleep(c2954ec8,c0ab8e80,244,c0968ca9,0,c9030444,0,c0968eb0,200,c2954ec8,82)
at
msleep+0x279
vm_page_sleep_if_busy(c2954ec8,1,c0968ca9) at vm_page_sleep_if_busy+0x7c
vm_object_page_remove(c9030444,4,0,8000,0,0) at vm_object_page_remove+0xf9
vnode_pager_setsize(c903c000,4000,0) at vnode_pager_setsize+0xbd
ffs_write(f734a78c) at ffs_write+0x264
VOP_WRITE_APV(c0a09b00,f734a78c) at VOP_WRITE_APV+0x112
vnode_pager_generic_putpages(c903c000,f734a8d0,9000,5,f734a860,...) at
vnode_pag
 er_generic_putpages+0x1ef
vop_stdputpages(f734a814) at vop_stdputpages+0x1a
VOP_PUTPAGES_APV(c0a09b00,f734a814) at VOP_PUTPAGES_APV+0x8c
vnode_pager_putpages(c9030444,f734a8d0,9,5,f734a860) at
vnode_pager_putpages+0x7
                e
vm_pageout_flush(f734a8d0,9,5,0,0,...) at vm_pageout_flush+0x112
vm_object_page_collect_flush(c9030444,c29505a8,251,5,4a,...) at
vm_object_page_c
        ollect_flush+0x2a0
vm_object_page_clean(c9030444,0,0,0,0,...) at vm_object_page_clean+0x184
vm_object_terminate(c9030444) at vm_object_terminate+0x60
vnode_destroy_vobject(c903c000,c6973500,f734aab8,c6c19960,0,...) at
vnode_destro
    y_vobject+0x39
ufs_reclaim(f734aab8) at ufs_reclaim+0x46
VOP_RECLAIM_APV(c0a09b00,f734aab8) at VOP_RECLAIM_APV+0x7e
vgonel(c903c000) at vgonel+0x12d
vrecycle(c903c000,c6c19960) at vrecycle+0x38
ufs_inactive(f734ab40) at ufs_inactive+0x2af
VOP_INACTIVE_APV(c0a09b00,f734ab40) at VOP_INACTIVE_APV+0x7e
vinactive(c903c000,c6c19960) at vinactive+0x72
vrele(c903c000,c9030444,0,c096897c,1a2,...) at vrele+0x14a
vm_object_vndeallocate(c9030444) at vm_object_vndeallocate+0xc0
vm_object_deallocate(c9030444,c9030444,0,c0968016,8e7) at
vm_object_deallocate+0
              xb3
vm_map_entry_delete(c722a000,c7194bf4,f734ac20,c081ca37,c722a000,...)
at vm_map_
  entry_delete+0x130
vm_map_delete(c722a000,0,bfc00000) at vm_map_delete+0x18f
vmspace_exit(c6c19960,c0a4bde0,0,c09463ea,125,...) at vmspace_exit+0xd5
exit1(c6c19960,9,2831a4b4,c6c19960,c7234000,...) at exit1+0x496
sigexit(c6c19960,9,c7234aa8,0,c09499bc,...) at sigexit+0xdf
postsig(9) at postsig+0x160
ast(f734ad38) at ast+0x35e
doreti_ast() at doreti_ast+0x17

db> show alllock
Process 1385 (httpd) thread 0xc6c19960 (100181)
exclusive sx user map r = 0 (0xc722a044) locked @
/usr/src/sys_uvmem_uip.6.2_RELEASE/vm/vm_map.c:307

>
>>
>>> Any hints?
>>>
--
wbr,
pluknet