[Bug 436632] xorg locks up, no io, usually using firefox

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https://bugzilla.redhat.com/show_bug.cgi?id=436632


Matthew Miller <mattdm at mattdm.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mattdm at mattdm.org




--- Comment #18 from Matthew Miller <mattdm at mattdm.org>  2009-09-29 10:01:27 EDT ---
Suddenly started happening to me with

xorg-x11-drv-ati-6.13.0-0.4.20090908git651fe5a47.fc12.x86_64 on rawhide from
2009.09.29.

(--) PCI:*(0:1:0:0) 1002:9583:106b:0083 ATI Technologies Inc M76XT [Mobility
Radeon HD 2600 XT] rev 0, Mem @ 0xc0000000/268435456, 0xd0620000/65536, I/O @
0x00003000/256, BIOS @ 0x????????/131072


Xorg takes up 100% of CPU, and if I strace it, I get:

ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)
ioctl(9, 0xc0086464, 0x7fff168b66a0)    = -1 EBUSY (Device or resource busy)

over and over very, very quickly.

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