From owner-freebsd-current Mon Aug 20 19:26:16 2001 Delivered-To: freebsd-current@freebsd.org Received: from kyle.tandemedia.com (kyle.tandemedia.com [216.29.169.3]) by hub.freebsd.org (Postfix) with ESMTP id 873B437B405; Mon, 20 Aug 2001 19:26:13 -0700 (PDT) (envelope-from rmtodd@servalan.servalan.com) Received: by kyle.tandemedia.com (Postfix, from userid 66) id 588B85540A; Mon, 20 Aug 2001 22:26:11 -0400 (EDT) Received: from localhost (2465 bytes) by servalan.servalan.com via sendmail with P:stdio/R:smart_host/T:hacked-uux (sender: ) (ident using unix) id for ; Mon, 20 Aug 2001 21:06:57 -0500 (CDT) (Smail-3.2.0.111 2000-Feb-17 #1 built 2001-Jan-15) Message-Id: 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... Newsgroups: servalan.mailinglist.fbsd-current References: X-Newsreader: NN version 6.5.6 (NOV) Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG 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