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Date: Sun, 3 May 2009 10:44:29 +0300 From: Anssi Kolehmainen <anssi@...tzu.net> To: linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org Subject: BUG: Bad page state in process md1_resync pfn:50ab4 Last night one server died apparently while doing resync of 1.5Tb md raid1 array. Syslog [1] contained messages about BUG: Bad page state but something else killed the system. Too bad the start of the stack trace didn't fit in the monitor [2] so I don't know the exact cause for the final freeze. The machine is rather old desktop PC serving disks over NFS and Samba. Apart from failing Seagate drives everything has worked fine for few weeks and this is the first time this occured. Any thoughts of the BUG or is there anything else you would like to know? Please keep me cc'd because I'm not on the lists. Linux version 2.6.29-1-amd64 (Debian 2.6.29-2) (waldi@...ian.org) (gcc version 4.3.3 (Debian 4.3.3-5) ) #1 SMP Sat Apr 4 16:54:07 UTC 2009 BUG: Bad page state in process md1_resync pfn:03d5e page:ffffe200000d6c90 flags:010000000001000c count:0 mapcount:0 mapping:ffff880021ea19c0 index:1f518 Pid: 6612, comm: md1_resync Not tainted 2.6.29-1-amd64 #1 Call Trace: [<ffffffff802936d1>] bad_page+0x102/0x113 [<ffffffff80294840>] free_pages_check+0x9d/0xbe [<ffffffff8029499f>] free_hot_cold_page+0x3c/0x114 [<ffffffffa0153cbd>] r1buf_pool_alloc+0x121/0x16f [raid1] [<ffffffff80291724>] mempool_alloc+0x3f/0xf5 [<ffffffff8047a8f9>] _spin_lock_irq+0xd/0xf [<ffffffffa015354c>] raise_barrier+0x179/0x18f [raid1] [<ffffffff8023e601>] try_to_wake_up+0x1b0/0x1c2 [<ffffffffa0081d68>] scsi_request_fn+0x41b/0x4e9 [scsi_mod] [<ffffffffa0153f14>] sync_request+0x195/0x519 [raid1] [<ffffffffa013de5e>] is_mddev_idle+0xa3/0xf5 [md_mod] [<ffffffffa013e480>] md_do_sync+0x5d0/0x9bb [md_mod] [<ffffffff80257052>] autoremove_wake_function+0x0/0x2e [<ffffffffa013ece8>] md_thread+0xe5/0x103 [md_mod] [<ffffffff8023750c>] __wake_up_common+0x44/0x73 [<ffffffffa013ec03>] md_thread+0x0/0x103 [md_mod] [<ffffffffa013ec03>] md_thread+0x0/0x103 [md_mod] [<ffffffff80256cd1>] kthread+0x47/0x73 [<ffffffff8021231a>] child_rip+0xa/0x20 [<ffffffff80229035>] flat_send_IPI_mask+0x0/0x5 [<ffffffff80256c8a>] kthread+0x0/0x73 [<ffffffff80212310>] child_rip+0x0/0x20 1: http://kelvin.aketzu.net/~akolehma/syslog-resync-bug.txt 2: http://kelvin.aketzu.net/~akolehma/panic.jpg -- Anssi Kolehmainen -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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