Dne 21.8.2011 20:14, Alexander Lyakas napsal(a): > Greetings all, > on stock ubuntu natty, using liblvm 2.02.66, sometimes > lvm_vg_create_lv_linear () gets stuck in the following stack. > > #0 0x00007f3b9636a0f7 in semop () from /lib/x86_64-linux-gnu/libc.so.6 > #1 0x00007f3b9606863c in dm_udev_wait () from /lib/libdevmapper.so.1.02.1 > #2 0x00007f3b973df41b in ?? () from /lib/liblvm2app.so.2.2 > dmsetup udevcomplete_all this should finish the execution of this command. > > I realize that somehow it is related to udev synchronization. In my > application, I have a udev monitor for "block" subsystem type, but > currently it does nothing with the events it receives (it calls > udev_monitor_receive_device(), udev_device_get_action() and then > udev_device_unref() for every event. I plan in the future to use it > for waking up other threads. > > Can somebody pls advise on how to investigate this issue. It does not > happen always. My assumption is - you Debian system is using non-upstream Debian deviation of udev rules and those are broken (I guess some related discussion might be googled) Another issue which is currently being explored is the namespace usage - but I think this is not related to the problem you are seeing. Anyway I'd strongly suggest to use newer lvm package (either build form CVS) or at least Debian unstable version - as 2.02.66 is very old one. Zdenek _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
