2016-02-25 10:23 GMT+03:00 Vasiliy Tolstov <v.tolstov@xxxxxxxxx>: > Hi. I have strange deadlocked process of mdadm > root 14495 0.0 0.0 13064 1964 ? D Feb24 0:00 > /sbin/mdadm --detail --export /dev/.tmp-block-259:5 > > why this is can happen and does mdadm git repo already have fix for this? > Thanks! i'm use old linux 3.19.3, echo w > /proc/sysrq-trigger: [15840064.321022] SysRq : Show Blocked State [15840064.321072] task PC stack pid father [15840064.321183] mdadm D ffff880eebb02490 0 14495 8481 0x00000004 [15840064.321268] ffff880eebb02490 ffffffff81141d69 ffff881ff8fd6a70 0000000000013b40 [15840064.321360] 0000000000013b40 ffff880eebb02490 ffff880ebb073fd8 ffff88103fffcd80 [15840064.321452] ffff880fbb0ea418 ffff880fbb0ea41c ffff880eebb02490 ffff880fbb0ea420 [15840064.329570] Call Trace: [15840064.329615] [<ffffffff81141d69>] ? __d_rehash+0x19/0x4c [15840064.329667] [<ffffffff813e082b>] ? schedule_preempt_disabled+0x6/0x8 [15840064.329722] [<ffffffff813e14ff>] ? __mutex_lock_slowpath+0xa8/0x104 [15840064.329786] [<ffffffff813e1571>] ? mutex_lock+0x16/0x25 [15840064.329838] [<ffffffff8115a59a>] ? __blkdev_get+0x92/0x3b9 [15840064.329889] [<ffffffff8115ab94>] ? blkdev_get+0x2d3/0x2d3 [15840064.329939] [<ffffffff8115aa4c>] ? blkdev_get+0x18b/0x2d3 [15840064.329991] [<ffffffff811437b5>] ? __d_lookup_rcu+0x94/0xbb [15840064.330043] [<ffffffff8115ab94>] ? blkdev_get+0x2d3/0x2d3 [15840064.330095] [<ffffffff81130a5e>] ? do_dentry_open+0x178/0x27e [15840064.330147] [<ffffffff8113bb69>] ? do_last+0x865/0xa23 [15840064.330197] [<ffffffff8113a2c1>] ? __inode_permission+0x57/0x95 [15840064.330249] [<ffffffff8113d15f>] ? path_openat+0x207/0x46d [15840064.330301] [<ffffffff8111f744>] ? __cache_free.isra.47+0x1e5/0x1f4 [15840064.330354] [<ffffffff8113e450>] ? do_filp_open+0x2b/0x6f [15840064.330405] [<ffffffff811472e9>] ? __alloc_fd+0xd9/0xea [15840064.330456] [<ffffffff811313a3>] ? do_sys_open+0x65/0xe9 [15840064.330506] [<ffffffff813e2ce9>] ? system_call_fastpath+0x12/0x17 -- Vasiliy Tolstov, e-mail: v.tolstov@xxxxxxxxx -- 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
