>>>>> "Micheal" == Micheal Blue <mblue@xxxxxx> writes: >> Sent: Monday, December 14, 2015 at 8:48 AM >> From: "Micheal Blue" <> >> To: linux-raid@xxxxxxxxxxxxxxx >> Subject: core dump on initial sync of raid10 please help >> >> I noticed my initial sync when making a 4 disk raid10 is really slow. I looked in dmesg and found this. >> I do not know what it means. Suggestions please :) >> >> [ 600.959945] INFO: task md0_resync:676 blocked for more than 120 seconds. >> [ 600.959976] Not tainted 4.3.2-1-ARCH #1 >> [ 600.959994] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >> [ 600.960024] md0_resync D ffff88021fa956c0 0 676 2 0x00000000 >> [ 600.960028] ffff8800ca143b40 0000000000000046 ffff880216659b80 ffff8800377244c0 >> [ 600.960030] ffff8800ca144000 ffff88003765a000 ffff8800ca143b68 ffff88003765a100 >> [ 600.960032] ffff88003765a000 ffff8800ca143b58 ffffffff8157f92a ffff88003765a0dc >> [ 600.960034] Call Trace: >> [ 600.960040] [<ffffffff8157f92a>] schedule+0x3a/0x90 >> [ 600.960044] [<ffffffffa0548f52>] raise_barrier+0x122/0x190 [raid10] >> [ 600.960049] [<ffffffff810b5dc0>] ? wake_atomic_t_function+0x60/0x60 >> [ 600.960051] [<ffffffffa054eea1>] sync_request+0x731/0x19b0 [raid10] Micheal> ... Micheal> It seems that the kernel itself is to blame for this. If I Micheal> boot into kernel version 4.1.14 everything seems to be Micheal> running fine as I create the array. Try to run with kernel v4.4-rc4 or newer I think. I ran into something similiar on my system. John -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
