From: Clemens Ladisch <clemens@ladisch.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: alsa-devel@alsa-project.org, Bill Davidsen <davidsen@tmr.com>,
linux-kernel@vger.kernel.org
Subject: Re: 2.6.34-rc1: regression: ^Z no longer stops sound
Date: Tue, 23 Mar 2010 15:08:51 +0100 [thread overview]
Message-ID: <4BA8CB73.80400@ladisch.de> (raw)
In-Reply-To: <20100323135942.GB1703@ucw.cz>
Pavel Machek wrote:
> On Sun 2010-03-14 17:20:13, Bill Davidsen wrote:
>> Pavel Machek wrote:
>>> In 2.6.33, hitting ^Z stopped mpg123 in a way you'd expect (both on
>>> thinkpad and geode notebook).
>>>
>>> On 2.6.34-rc1, hit ^Z and sound starts looping.
>>
>> That's not new, I have seen it back as far as 2.6.27.25 doing a suspend
>> in a VM (KVM, no libvirt). But it only happens a few times a year, so I
>> never chased it. I hate to report an occasional problem in an obsolete
>> kernel, and I can't reproduce it.
>>
>> Does it happen repeatably with the new kernel?
>
> It happened reliably so far, yes.
This sounds as if the device has been configured to ignore underruns.
What are the contents of /proc/asound/card0/pcm0p/sub0/{sw_params,status}
when it's looping, and when it's really suspended?
Regards,
Clemens
WARNING: multiple messages have this Message-ID (diff)
From: Clemens Ladisch <clemens@ladisch.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: Bill Davidsen <davidsen@tmr.com>,
linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: 2.6.34-rc1: regression: ^Z no longer stops sound
Date: Tue, 23 Mar 2010 15:08:51 +0100 [thread overview]
Message-ID: <4BA8CB73.80400@ladisch.de> (raw)
In-Reply-To: <20100323135942.GB1703@ucw.cz>
Pavel Machek wrote:
> On Sun 2010-03-14 17:20:13, Bill Davidsen wrote:
>> Pavel Machek wrote:
>>> In 2.6.33, hitting ^Z stopped mpg123 in a way you'd expect (both on
>>> thinkpad and geode notebook).
>>>
>>> On 2.6.34-rc1, hit ^Z and sound starts looping.
>>
>> That's not new, I have seen it back as far as 2.6.27.25 doing a suspend
>> in a VM (KVM, no libvirt). But it only happens a few times a year, so I
>> never chased it. I hate to report an occasional problem in an obsolete
>> kernel, and I can't reproduce it.
>>
>> Does it happen repeatably with the new kernel?
>
> It happened reliably so far, yes.
This sounds as if the device has been configured to ignore underruns.
What are the contents of /proc/asound/card0/pcm0p/sub0/{sw_params,status}
when it's looping, and when it's really suspended?
Regards,
Clemens
next prev parent reply other threads:[~2010-03-23 14:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-14 7:58 2.6.34-rc1: regression: ^Z no longer stops sound Pavel Machek
2010-03-14 21:20 ` Bill Davidsen
2010-03-23 13:59 ` Pavel Machek
2010-03-23 13:59 ` Pavel Machek
2010-03-23 14:08 ` Clemens Ladisch [this message]
2010-03-23 14:08 ` Clemens Ladisch
2010-03-24 16:47 ` Bill Davidsen
2010-03-15 7:27 ` Takashi Iwai
2010-03-15 7:27 ` Takashi Iwai
2010-03-15 7:41 ` Pavel Machek
2010-03-15 7:41 ` Pavel Machek
2010-03-15 7:46 ` Jaroslav Kysela
2010-03-15 7:46 ` Jaroslav Kysela
2010-03-20 19:55 ` Maciej Rutecki
2010-03-27 19:51 ` Pavel Machek
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