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Date: Fri, 28 Oct 2011 00:59:25 +0300 From: Ari Savolainen <ari.m.savolainen@...il.com> To: Greg Kroah-Hartman <gregkh@...e.de>, Milan Broz <mbroz@...hat.com>, linux-kernel@...r.kernel.org Subject: PROBLEM: lvm gets stuck during booting due to recent uevent change After commit ebf4127cd677 "kobj_uevent: Ignore if some listeners cannot handle message" in the current development tree lvm gets stuck during booting and never recovers. The machine has Ubuntu 11.10. Here is what happens: An init script (/scripts/init-bottom/udev in initrd) issues command "udevadm control --timeout=61 --exit". At the same time udevd is executing "/sbin/lvm vgchange -a y" (from /lib/udev/rules.d/85-lvm2.rules) that calls ioctl to resume a logical volume. After that lvm gets stuck forever. Booting continues after the 61 second timeout. Here is part of lvm backtrace from gdb (ioctl is called just before dm_udev_wait from another function): #0 0x00007f56d6d37797 in semop () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007f56d720a75c in dm_udev_wait (cookie=223208589) at libdm-common.c:1279 #2 0x0000000000476d5f in _tree_action (dm=0xaa0680, lv=0xffffffffffffff69, action=ACTIVATE) at activate/dev_manager.c:1479 #3 0x0000000000477a4e in dev_manager_activate (dm=0xaa0680, lv=0xa9caf0) at activate/dev_manager.c:1505 #4 0x000000000042ebcc in _lv_activate_lv (lv=0xa9caf0) at activate/activate.c:570 ... -- 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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