Two corrections. The freeze also occurs with the mainline kernel, and is not related to system load on the network or disk. It appears in fact to be an error in the radeon drm module.
The following messages were filling the syslog and scrolling rapidly when I switched to VT1. pr 23 05:00:56 daniloth kernel: [13267.008713] [drm:radeon_cs_ioctl] *ERROR* Faild to sche dule IB ! Apr 23 05:00:56 daniloth kernel: [13267.010063] [drm:radeon_ib_schedule] *ERROR* radeon: co uldn't schedule IB(14). Apr 23 05:00:56 daniloth kernel: [13267.010070] [drm:radeon_cs_ioctl] *ERROR* Faild to sche dule IB ! Apr 23 05:00:56 daniloth kernel: [13267.023439] [drm:radeon_ib_schedule] *ERROR* radeon: co uldn't schedule IB(15). Apr 23 05:00:56 daniloth kernel: [13267.023448] [drm:radeon_cs_ioctl] *ERROR* Faild to sche dule IB ! Apr 23 05:00:56 daniloth kernel: [13267.052651] [drm:radeon_ib_schedule] *ERROR* radeon: co uldn't schedule IB(0) ** Tags removed: needs-upstream-testing ** Summary changed: - Lucid: system freezes under heavy network+disk - mainline kernel 2.6.34-rc5 works + Lucid: system freezes randomly possibly due to bug on radeon drm module -- Lucid: system freezes randomly possibly due to bug on radeon drm module https://bugs.launchpad.net/bugs/567805 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs