[Bugme-new] [Bug 4250] New: When running an app which uses the MIDI component of the kernel ALSA code, the entire system hangs. Requires a power cycle to restart, causing fsck'ing of drive.

[bugme-daemon at osdl.org]

http://bugme.osdl.org/show_bug.cgi?id=4250

           Summary: When running an app which uses the MIDI component of the
                    kernel ALSA code, the entire system hangs.  Requires a
                    power cycle to restart, causing fsck'ing of drive.
    Kernel Version: Linux version 2.6.10 (gcc version 3.3.5 (Debian 1:3.3.5-
                    5))
            Status: NEW
          Severity: high
             Owner: perex at perex.cz
         Submitter: jindo at mailinator.com


Distribution: 
Debian Sarge

Hardware Environment: 
AMD Duron 800, 192Mb RAM, SiS integrated 7018 sound card(Trident compatible)
(SiS 630 Chipset)

Software Environment: 
ALSA modules compiled from stock 2.6.10 kernel.  Any application from Debian apt
repository which uses MIDI functionality.

Problem Description:  
When running apps such as muse or seq24 from the debian repository, the whole
system hangs and is competely unresponsive.  Ctr-Alt-Backspace does not kill X,
mouse & keyboard does not respond and the only solution is to use the hardware
reset button or to powercycle.  As the system uses e2fs, this then prompts a
fsck (not surprisingly).  This behaviour was not evident under 2.6.7 with the
same applications.

Steps to reproduce:  
On Debian sarge, compile 2.6.10 with the following sound options:
--Snip--
#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
# CONFIG_SND_SEQUENCER_OSS is not set
# CONFIG_SND_RTCTIMER is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_MPU401_UART=m
# CONFIG_SND_DUMMY is not set
CONFIG_SND_VIRMIDI=m
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m

--Snip--

#
# PCI devices
#
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_TRIDENT=m
--Snip--
(Please note that OSS is not compiled in, all other options left unset)
Obtain muse or seq24 via apt-get and run.

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.