Date: Wed, 3 Dec 2003 14:34:57 -0500 From: Mathew Kanner <mat@cnd.mcgill.ca> To: Peter Hofer <peter.hofer2@liwest.at> Cc: freebsd-current@freebsd.org Subject: Re: Strange pcm/network problem Message-ID: <20031203193457.GM54011@cnd.mcgill.ca> In-Reply-To: <3FCE33C2.50200@liwest.at> References: <3FCE33C2.50200@liwest.at>
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Peter, I'm afraid I haven't a clue why this happens to you but please see my notes below. On Dec 03, Peter Hofer wrote: > since I installed 5.2-BETA, I've got a very strange problem. Always > when I'm listening to some music and start a network transfer, both > the music and the transfer stop after some time. Nothing is being > received or sent any more, and the following message appears a few > times: > > bfe0: watchdog timeout -- resetting > > This goes on until I exit xmms. When I exit xmms, after a few seconds > the network works again. There's no problem in receiving and sending > data then. > > I was able to reproduce this with mpg123, it just stops playing and > exits when data is being sent over the network. And dmesg then says "pcm channel dead" ? > > The problem also persists when I'm using my rl nic instead of the > onboard bfe chip. > > I'm using sources from yesterday (2003-11-02) now and this problem > still occurs, no matter if sound support is loaded with kldload or > compiled into the kernel. No need to try compiling PCM in the kernel, klds should work exactly the same. I notice that your network cards, sound card and sio use IRQ 4, I also note that your aren't using acpi, what happens when you enable it? A brief look at the ich code reveals that it's flagged as mpsafe when it isn't, but since you are UP, I don't see this being the cause. I also vaguely remember that another OS had a note about certain corner cases missing interrupts but I don't think that should affect other irq handlers either. I really am stumped. If we can't figure this out, you always do a binary search to find the commit that caused it, though since I wouldn't likely do this myself, I wouldn't expect you to. Input from others warmly received :) --mat -- Any idiot can face a crisis; it is this day-to-day living that wears you out. - Chekhov
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