Hi, I was tired of those long resync periods and decided to go for the write intent bitmap options. Soon after installing the bitmap my system froze. On reboot the system synced the raid device; but as soon as it was accessed the system froze again. Reboot with an older kernel did not help since the raid array was not started. I recoverd by making sure the raid array was not mounted at startup. And removing the bitmap with: mdadm --grow none /dev/md3. after that everything was fine again. I hope this report helps in fixing this eventualy, regards, Jorg Here is some basic info about my system: ida ~ # uname -a Linux ida.dejong.info 2.6.14-gentoo-r5 #1 SMP PREEMPT Wed Dec 28 15:10:20 CET 2005 i686 AMD Athlon(tm) MP 2000+ AuthenticAMD GNU/Linux ida ~ # mdadm --version mdadm - v2.1 - 12 September 2005 And here is a portion of /var/log/messages: Dec 28 20:49:16 ida kernel: md: md3: sync done. Dec 28 20:49:16 ida kernel: RAID5 conf printout: Dec 28 20:49:16 ida kernel: --- rd:4 wd:4 fd:0 Dec 28 20:49:16 ida kernel: disk 0, o:1, dev:hdk2 Dec 28 20:49:16 ida kernel: disk 1, o:1, dev:hdg2 Dec 28 20:49:16 ida kernel: disk 2, o:1, dev:hde2 Dec 28 20:49:16 ida kernel: disk 3, o:1, dev:hdi2 Dec 28 20:49:21 ida kernel: md3: bitmap initialized from disk: read 10/10 pages, set 310694 bits, status: 0 Dec 28 20:49:21 ida kernel: created bitmap (152 pages) for device md3 Dec 28 20:49:37 ida kernel: scheduling while atomic: md3_raid5/0x00000001/857 Dec 28 20:49:37 ida kernel: [<c03cb6df>] schedule+0xc9f/0xcb0 Dec 28 20:49:37 ida kernel: [<c0120b80>] __wake_up+0x40/0x60 Dec 28 20:49:37 ida kernel: [<c03420a6>] write_page+0x186/0x190 Dec 28 20:49:37 ida kernel: [<c013a710>] prepare_to_wait+0x20/0x70 Dec 28 20:49:37 ida kernel: [<c0342d6b>] bitmap_unplug+0x15b/0x290 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c012e6b8>] del_timer_sync+0x28/0x40 Dec 28 20:49:37 ida kernel: [<c0330b35>] raid5d+0x55/0x2b0 Dec 28 20:49:37 ida kernel: [<c033fa27>] md_thread+0x67/0x120 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c03cb73a>] preempt_schedule+0x4a/0x70 Dec 28 20:49:37 ida kernel: [<c033f9c0>] md_thread+0x0/0x120 Dec 28 20:49:37 ida kernel: [<c013a377>] kthread+0xb7/0xc0 Dec 28 20:49:37 ida kernel: [<c013a2c0>] kthread+0x0/0xc0 Dec 28 20:49:37 ida kernel: [<c0101211>] kernel_thread_helper+0x5/0x14 Dec 28 20:49:37 ida kernel: scheduling while atomic: md3_raid5/0x00000001/857 Dec 28 20:49:37 ida kernel: [<c03cb6df>] schedule+0xc9f/0xcb0 Dec 28 20:49:37 ida kernel: [<c016b35a>] bio_put+0x2a/0x40 Dec 28 20:49:37 ida kernel: [<c0344890>] clone_endio+0xf0/0x120 Dec 28 20:49:37 ida kernel: [<c03420a6>] write_page+0x186/0x190 Dec 28 20:49:37 ida kernel: [<c013a710>] prepare_to_wait+0x20/0x70 Dec 28 20:49:37 ida kernel: [<c0342d6b>] bitmap_unplug+0x15b/0x290 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c013a840>] autoremove_wake_function+0x0/0x60 Dec 28 20:49:37 ida kernel: [<c012e6b8>] del_timer_sync+0x28/0x40 Dec 28 20:49:37 ida kernel: [<c0330b35>] raid5d+0x55/0x2b0 - 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
