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Hi, I'm running a 2.4.18-14 kernel with a heavy IO profile using ext3 over RAID 0+1 volumes. From time to time I get a black screen stuck machine while trying to umount a volume during an IO workload (as part of a failback solution - but after killing all IO processes ), with ping still responding, but everything else mostly dead. I tried using the forcedumount patch to solve this problem - to no avail. Also tried upgrading the qlogic drivers to the latest drivers from Qlogic. After one of the occurences I managed to get some output using the sysrq keys. This seems similar to what is described in http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=77508 but with a different call trace What I have here is what I managed to copy down (for some reason pgup/pgdown didn't work so not all information is full...) together with a manual lookup of the call trace from /proc/ksyms : process umount EIP c01190b8 (set_running_and_schedule) call trace: c01144c9 f25f9ec0 IO_APIC_get_PCI_irq_vector c010a8b0 f25f9ed0 enable_irq c014200c f25f9ef0 fsync_buffers_list c0155595 f25f9efc clear_inode c015553d f25f9f2c invalidate_inodes c01461d8 f25f9f78 get_super c014a629 f25f9f94 path_release c0157c58 f25f9fc0 sys_umount c0108cab sys_sigaltstack Any idea what can cause this ? I'm hoping the ext3fix.patch will solve this problem... am trying that now. Thanks, Yuval P.S. please CC me for questions/replies as I'm not currently subscribed to the list. -- Yuval Yeret Exanet http://www.exanet.com Tel. 972-9-9717782 Fax. 972-9-9717778 _________________________________________________________________ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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