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** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1295587
Title:
Temporal freeze and slowdown while using emulated sb16
Status in QEMU:
Incomplete
Bug description:
I have been carrying around this bug since previous versions and on
different machines: When I use the -soundhw sb16 option, while playing
any sound on the virtual machine it temporally freezes the emulated
machine and loops the last bit of such sound effect for 1-2 minutes,
then goes back to normal speed (until a new sound is played).
Console shows:
sb16: warning: command 0xf9,1 is not truly understood yet
sb16: warning: command 0xf9,1 is not truly understood yet
(...)
main-loop: WARNING: I/O thread spun for 1000 iterations
-One of my emulated machines is Windows 3.11: I managed to overrun
this bug by switching from the local 1.5 version of the sound blaster
driver to the 1.0, although since I updated qemu it freezes that
machine, so I can't test if it still works.
I am using the 1.7.90 version, but I suffered this bug for over one
year (confirmed in version 2.0.0-rc0 too)
this bug happens anytime I use the -soundhw sb16 switch, but the full
command I am using in this specific case is:
qemu-system-i386 -localtime -cpu pentium -m 32 -display sdl -vga
cirrus -hda c.img -cdrom win95stuff.iso -net nic,model=ne2k_pci -net
user -soundhw sb16
This bug appears on all my machines: Pentium III running Slackware
13.0 and freeBSD 10; Dual core T2400, both in Arch, Gentoo and
Slackware 14.1 (all 32 bits), and a Dual core T4400 64 bits with
Gentoo and Slackware. Same problem in all of those systems after
compiling instead of using the distro packages....
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