From: David Henningsson <david.henningsson@canonical.com>
To: Forest Bond <forest@forestbond.com>, Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org
Subject: Re: snd_device_name_hint segfaults
Date: Thu, 03 Oct 2013 22:16:17 +0200 [thread overview]
Message-ID: <524DD091.6060105@canonical.com> (raw)
In-Reply-To: <20131003183623.GB29746@alittletooquiet.net>
On 10/03/2013 08:36 PM, Forest Bond wrote:
>>>>> Here is the backtrace:
>>>>>
>>>>> #0 0x003f0e78 in __strcpy_chk () from /lib/i386-linux-gnu/libc.so.6
>>>>> #1 0x0625084b in strcpy (__src=0x0, __dest=0xb6025e80 "pcm.(null)") at /usr/include/i386-li
>>>>> nux-gnu/bits/string3.h:105
>>>>> #2 try_config (config=0xaf1c4df0, list=0xb52fe804, base=0x323e962 "pcm", name=0x0) at nameh
>>>>> int.c:243
>>>>> #3 0x06251bc5 in add_software_devices (list=0xb52fe804, config=0xaf1c4df0) at namehint.c:51
>>>>> 2
>>>>> #4 snd_device_name_hint (card=-1, iface=<optimized out>, hints=0xb52fe90c) at namehint.c:59
>> In general, the configuration space itself should be static,
>> determined at the loading time.
>
> I've been meaning to follow up on this issue for a while. Sorry for the delayed
> report. We disabled PulseAudio idle exit and the problem went away, so it does
> appear to be related somehow.
Hi, a few weeks ago I came up with a related patch (based on an Ubuntu
bug report). This might be what you're looking for:
http://git.alsa-project.org/?p=alsa-lib.git;a=commit;h=23bf1dce9438c0cf74357928289aa8f06957c283
When I fixed it, I thought it was just an edge case, but if this avoids
access violations in standard scenarios for you, VLC, mythtv, chromium,
and others - maybe we should try to make an update, even for stable
Ubuntu releases (such as Ubuntu 12.04)?
--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
prev parent reply other threads:[~2013-10-03 20:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 18:39 snd_device_name_hint segfaults Forest Bond
2013-06-27 6:23 ` Takashi Iwai
2013-06-27 14:30 ` Forest Bond
2013-06-27 15:05 ` Takashi Iwai
2013-06-27 15:03 ` Forest Bond
2013-10-03 18:36 ` Forest Bond
2013-10-03 20:16 ` David Henningsson [this message]
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