What I really need is a crashdump. I'm simply short on time to reproduce this myself.
https://wiki.ubuntu.com/Kernel/CrashdumpRecipe Configure sysctl to panic on oops, that should do it. This stack section is interesting. Dec 9 09:18:27 ealxs00195 kernel: [1726974.078795] RIP: 0010:[<ffffffff8165b049>] [<ffffffff8165b049>] _raw_spin_unlock_irqrestore+0x19/0x30 ... Dec 9 09:18:27 ealxs00195 kernel: [1726974.091694] [<ffffffff8142f764>] __scsi_remove_target+0xd4/0xf0 Dec 9 09:18:27 ealxs00195 kernel: [1726974.091696] [<ffffffff8142f841>] scsi_remove_target+0xc1/0xe0 Dec 9 09:18:27 ealxs00195 kernel: [1726974.091701] [<ffffffffa00deb96>] fc_starget_delete+0x26/0x30 [scsi_transport_fc] Dec 9 09:18:27 ealxs00195 kernel: [1726974.091706] [<ffffffff81084b1a>] process_one_work+0x11a/0x480 It's required to be able to sleep in a workq context, we're grabbing spinlocks here, which when done quickly is fine, but holding them too long and well, you see this. I doubt this is the root cause, something else is likely holding the locks due to an error handling condition and the removal threads are just victims. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/1032550 Title: [multipath] failed to get sysfs information To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1032550/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
