Hi Tom, On Tue, Jan 29, 2013 at 10:16:20PM -0500, Tom wrote: > I've update the CentOS bug (http://bugs.centos.org/view.php?id=6217) with > the following information: > > > -- More detail about the hang including traceback -- > > Using 5.9 kernel (348) without md raid: > Please stand by while rebooting the system... > md: stopping all md devices. > Synchronizing SCSI cache for disk sda: > Restarting system. > .. > machine restart > (reboots normally) > > > With md raid1: > Unmounting pipe file systems: > Unmounting file systems: > Please stand by while rebooting the system... > md: stopping all md devices. > md: md2 switched to read-only mode. > md: md1 switched to read-only mode. > (hang) > > Traceback: > INFO: task reboot:2063 blocked for more than 120 seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > reboot D ffff810037df37e0 0 2063 1 19 > (NOTLB) > ffff81005890ba08 0000000000000082 ffff81005890ba58 ffff81005beb1ea0 > 0000000000000001 0000000000000007 ffff810058d67040 ffff810037df37e0 > 000000596dd8a1e6 0000000000003df4 ffff810058d67228 000000008008d76f > Call Trace: > [<ffffffff8002e4bc>] __wake_up+0x38/0x4f > [<ffffffff80223bce>] md_write_start+0xf2/0x108 > [<ffffffff800a3bc2>] autoremove_wake_function+0x0/0x2e > [<ffffffff8000ab62>] get_page_from_freelist+0x380/0x442 > [<ffffffff880b102c>] :raid1:make_request+0x38/0x5d8 > [<ffffffff8001c839>] generic_make_request+0x211/0x228 > [<ffffffff8002389f>] mempool_alloc+0x31/0xe7 > [<ffffffff8001a98f>] vsnprintf+0x5d7/0xb54 > [<ffffffff80033695>] submit_bio+0xe6/0xed I think you should consider copying linux-raid@xxxxxxxxxxxxxxx. Did you have a chance to get the sysrq output? It would be helpful to see the other tasks on your machine. Regards, Ben _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
