Date: Sat, 10 Dec 2005 20:24:02 +0300 From: Maxim Maximov <mcsi@mcsi.pp.ru> To: Ariff Abdullah <skywizard@MyBSD.org.my> Cc: current@freebsd.org Subject: Re: LOR in pcm Message-ID: <439B0F32.1060201@mcsi.pp.ru> In-Reply-To: <20051211011355.4b0b3f78.skywizard@MyBSD.org.my> References: <439AF7C0.9060801@mcsi.pp.ru> <20051211011355.4b0b3f78.skywizard@MyBSD.org.my>
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Ariff Abdullah wrote: > On Sat, 10 Dec 2005 18:44:00 +0300 > Maxim Maximov <mcsi@mcsi.pp.ru> wrote: > >>Hi all. >> >> Got this on SMP CURRENT from Sun Dec 4 22:06:46 MSK 2005. >> I have no recording devices, FWIW. >> >>lock order reversal: >> 1st 0xc35884c0 pcm0 (sound cdev) @ >> /usr/src/sys/dev/sound/pcm/dsp.c:277 2nd 0xc3562ac0 pcm0:record:0 >> (pcm record channel) @ >>/usr/src/sys/dev/sound/pcm/dsp.c:290 >>KDB: stack backtrace: >>kdb_backtrace(0,ffffffff,c09a4d28,c09a4cb0,c0929504) at >>kdb_backtrace+0x29 witness_checkorder(c3562ac0,9,c08ab43d,122) at >>witness_checkorder+0x580 >>_mtx_lock_flags(c3562ac0,0,c08ab43del22,1) at >>_mtx_lock_flags+0x5b dsp_open(c3586c00,7,2000,c436cc00,c0995100) at >>dsp_open+0x2b2 giant_open(c3586c00,7,2000,c436cc00,c3586c00) at >>giant_open+0x30 devfs_open(db324a18) at devfs_open+0x223 >>VOP_OPEN_APV(c0921cc0,db324a18) at VOP_OPEN_APV+0x7e >>vn_open_cred(db324b70,db324c70,468,c3ee6b80,43) at >>vn_open_cred+0x448 vn_open(db324b70,db324c70,468,43,c09e2ad0) at >>vn_open+0x1e kern_open(c436cc00,15696050,0,7,bfbf6478) at >>kern_open+0xb6 open(c436cc00,db324d04,86,c06acb33,c436cc00) at >>open+0x1a syscall(14da003b,bf2f003b,bf2f003b,bfbf6488,15696050) at >>syscall+0x27e Xint0x80_syscall() at Xint0x80_syscall+0x1f --- >>syscall (5, FreeBSD ELF32, open), eip = 0x28a70b5f, esp = >>0xbfbf644c, ebp = 0xbfbf6478 --- > > > I believe this is during playback startup, right? I'm sorry, I'm not sure. I noticed it after a while. > If so, just ignore > it for a while, it is quite harmless (although a bit annoying). I'll > fix it alltogether hopefully before new year. Thanks! -- Maxim Maximov
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