Date: Mon, 20 Aug 2001 21:06:57 -0500 (CDT) From: rmtodd@servalan.servalan.com (Richard Todd) To: jhb@FreeBSD.org, current@freebsd.org Subject: Re: Sound broken on -current again... Message-ID: <m15Z0wT-004MTKC@servalan.servalan.com> References: <m15YNOu-004MzYC@servalan.servalan.com> <XFMail.010820113730.jhb@FreeBSD.org>
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In servalan.mailinglist.fbsd-current jhb writes: >On 19-Aug-01 Richard Todd wrote: >> In servalan.mailinglist.fbsd-current Maxim Sobolev writes: >>>I found that after reverting the following deltas (jhb's 10 August commit) >>>sound starts working again: >> >> [list of deltas deleted] >> >> I found much the same thing; specifically, the problematic change is this >> one: >What wait channel is the process (xmms, mpg123, whatever) in? Looking at a core file from a known-buggy kernel that I'd forced to core itself with ddb, I find for the madplay process: (kgdb) proc 855 (kgdb) bt #0 mi_switch () at ../../../kern/kern_synch.c:707 #1 0xc0273645 in msleep (ident=0xc13e0b00, mtx=0xc13d2800, priority=332, wmesg=0xc042bcb4 "pcmwr", timo=1) at ../../../kern/kern_synch.c:466 #2 0xc01fcad8 in chn_sleep (c=0xc13d1680, str=0xc042bcb4 "pcmwr", timeout=1) at ../../../dev/sound/pcm/channel.c:109 #3 0xc01fcd5c in chn_write (c=0xc13d1680, buf=0xc8f1af00) at ../../../dev/sound/pcm/channel.c:259 #4 0xc01fef40 in dsp_write (i_dev=0xc13e0f00, buf=0xc8f1af00, flag=2359297) at ../../../dev/sound/pcm/dsp.c:381 #5 0xc0243095 in spec_write (ap=0xc8f1ae90) at ../../../fs/specfs/spec_vnops.c:289 #6 0xc0242dc9 in spec_vnoperate (ap=0xc8f1ae90) at ../../../fs/specfs/spec_vnops.c:119 #7 0xc02b7c5f in vn_write (fp=0xc1623ec0, uio=0xc8f1af00, cred=0xc15c2600, flags=0, p=0xc8e54100) at vnode_if.h:303 #8 0xc028c073 in dofilewrite (p=0xc8e54100, fp=0xc1623ec0, fd=3, buf=0xbfbf8b74, nbyte=4608, offset=-1, flags=0) at ../../../sys/file.h:162 #9 0xc028bf26 in write (p=0xc8e54100, uap=0xc8f1af80) at ../../../kern/sys_generic.c:334 #10 0xc03e2fc9 in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077965964, tf_esi = 4608, tf_ebp = -1077937536, tf_isp = -923684908, tf_ebx = -1077965964, tf_edx = 1103, tf_ecx = -411, tf_eax = 4, tf_trapno = 0, tf_err = 2, tf_eip = 672022312, tf_cs = 31, tf_eflags = 663, tf_esp = -1077966048, tf_ss = 47}) at ../../../i386/i386/trap.c:1128 #11 0xc03cce0d in syscall_with_err_pushed () so apparently it was waiting on 'pcmwr'. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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