Date: Mon, 27 May 2002 13:14:21 -0700 (PDT) From: Lamont Granquist <lamont@scriptkiddie.org> To: Jun Kuriyama <kuriyama@imgsrc.co.jp> Cc: freebsd-current@freebsd.org Subject: Re: Messages from WITNESS [Sun May 26 kernel] Message-ID: <20020527131052.M8160-100000@coredump.scriptkiddie.org> In-Reply-To: <7m1ybyfikb.wl@black.imgsrc.co.jp>
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from May 26 kernel:
% dmesg | egrep sleep | sort | uniq -c
3 /usr/src/sys/vm/uma_core.c:1324: could sleep with "UMA lock" locked
from /usr/src/sys/vm/uma_core.c:1157
2 /usr/src/sys/vm/uma_core.c:1324: could sleep with "eventhandler"
locked from /usr/src/sys/kern/subr_eventhandler.c:162
78 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0" locked from
/usr/src/sys/dev/sound/pcm/sound.c:134
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:fake" locked
from /usr/src/sys/dev/sound/pcm/channel.c:677
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:play:0"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
28 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:play:1"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:play:2"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:play:3"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:record:0"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
4 /usr/src/sys/vm/uma_core.c:1324: could sleep with "pcm0:record:1"
locked from /usr/src/sys/dev/sound/pcm/channel.c:677
2 /usr/src/sys/vm/uma_core.c:1324: could sleep with "process lock"
locked from /usr/src/sys/kern/kern_exec.c:316
5 /usr/src/sys/vm/uma_core.c:1324: could sleep with "process lock"
locked from /usr/src/sys/kern/kern_prot.c:511
7 /usr/src/sys/vm/uma_core.c:1324: could sleep with "process lock"
locked from /usr/src/sys/kern/kern_prot.c:613
1 /usr/src/sys/vm/uma_core.c:1324: could sleep with "rman" locked from
/usr/src/sys/kern/subr_rman.c:194
1 /usr/src/sys/vm/uma_core.c:1324: could sleep with "sf_bufs list lock"
locked from /usr/src/sys/kern/uipc_syscalls.c:1578
(i'll try enabling that sysctl and getting some tracebacks right after i'm
done with this ports compile...)
On Mon, 27 May 2002, Jun Kuriyama wrote:
> At Sun, 26 May 2002 22:19:58 +0000 (UTC),
> Alfred Perlstein wrote:
> > Uh, why don't you guys enable 'debug.witness_ddb' and get us some
> > tracebacks? :)
>
> Could this help you?
>
> ../../../vm/uma_core.c:1324: could sleep with "process lock" locked from ../../../kern/kern_prot.c:867
> ../../../vm/uma_core.c:1324: could sleep with "pcm0:play:0" locked from ../../../dev/sound/pcm/sound.c:191
> Debugger("witness_sleep")
> Stopped at Debugger+0x46: xchgl %ebx,in_Debugger.0
> db> trace
> Debugger(c02d6fa0) at Debugger+0x46
> witness_sleep(1,0,c02ea491,52c) at witness_sleep+0xf8
> uma_zalloc_arg(c081d5a0,0,4) at uma_zalloc_arg+0x3e
> malloc(30,c031b020,4,e2fc3180,0) at malloc+0x78
> kobj_create(c031b0c0,c031b020,4,e2fc3180,e2f8cc00) at kobj_create+0x1a
> feeder_create(c031b0c0,0,e2fc3180,e7f96974,c017ebb5) at feeder_create+0x18
> chn_addfeeder(e2fc3180,c031b0c0,0) at chn_addfeeder+0x12
> chn_buildfeeder(e2fc3180) at chn_buildfeeder+0x5b
> chn_tryformat(e2fc3180,8,0,1f40,e2fc3180) at chn_tryformat+0x28
> chn_setformat(e2fc3180,8,e2fc3338,3,c035cad0) at chn_setformat+0x15
> chn_reset(e2fc3180,8) at chn_reset+0xc5
> dsp_open(c035cad0,6,2000,e33a2414,e837f980) at dsp_open+0x21c
> spec_open(e7f96a7c,e7f96b28,c01f5e69,e7f96a7c,6) at spec_open+0x12f
> spec_vnoperate(e7f96a7c) at spec_vnoperate+0x13
> vn_open_cred(e7f96c10,e7f96b64,0,e837f980,e7f96cec) at vn_open_cred+0x353
> vn_open(e7f96c10,e7f96b64,0,c01c7c54,e7f690f0) at vn_open+0x18
> open(e33a2414,e7f96d14,3,1,297) at open+0x155
> syscall(2f,2f,2f,804e6a4,2807343a) at syscall+0x205
> syscall_with_err_pushed() at syscall_with_err_pushed+0x1b
> --- syscall (5, FreeBSD ELF, open), eip = 0x280f4bcb, esp = 0xbfbffa08, ebp = 0xbfbffa44 ---
>
>
> --
> Jun Kuriyama <kuriyama@imgsrc.co.jp> // IMG SRC, Inc.
>
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