I've observed frequent but inconsistent kernel oops on boot and shutdown of
Debian Squeeze on 5 of 7 tested HP Compaq dc7800 machines.
Running 'lspci | grep VGA' yields:
01:00.0 VGA compatible controller: ATI Technologies Inc RV530 [Radeon X1600]
Running 'lsmod | grep radeon' yields:
radeon 574844 2
ttm 40146 1 radeon
drm_kms_helper 20369 1 radeon
drm 142327 4 radeon,ttm,drm_kms_helper
i2c_algo_bit 4225 1 radeon
i2c_core 15819 4 radeon,drm_kms_helper,drm,i2c_algo_bit
Adding 'blacklist radeon' to '/etc/modprobe.d/blacklist.conf' changes the
output of lsmod upon reboot for radeon from:
radeon 574844 2
to:
radeon 574844 1
A custom minimal install of Debian without X yielded:
radeon 574844 0
In the last two cases (system with 'blacklist radeon' added and system with
minimal install without X), I have been unable to reproduce a kernel oops
testing on multiple machines across many reboots.
Gnome still works with the addition of the blacklist. However, I have observed
tty switching issues (i.e. if I switch to tty1 then back to tty7 then try to go
back to another tty I can only get tty7 to come up).
--
Jesse
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