Hi Johannes & Zhu, On Tue, 2016-10-18 at 23:29 -0700, Nicholas A. Bellinger wrote: > On Tue, 2016-10-18 at 19:35 +0200, Johannes Thumshirn wrote: > > On Tue, Oct 18, 2016 at 09:01:34AM +0200, Johannes Thumshirn wrote: > > > > [...] > > > > > > > > > > This is likely the missing SCF_ACK_KREF assignment in >= v4.1.y: > > > > > > > > http://www.spinics.net/lists/target-devel/msg13530.html > > > > Sorry to disappoint you but it didn't fix my issue. Is there any debug data I > > can give you, or do you have an advice where I could start looking? > > > > I have to admit I only tested the patch on our downstream kernel and not the > > upstream kernel, I'll repeat the tests on 4.8 final tomorrow. > > > > Is it possible to generate vmcore to have a look in crash + gdb..? > > Just curious if you've been able to verify the above patch for v4.8.y iscsi-target ports on your specific config(s)..? To confirm, using v4.1.y + patch I've not run into any further se_cmd->cmd_kref leaks and/or hung tasks with iscsi-target ports due to high backend device I/O latency, resulting in host timeouts + ABORT_TASK + session reinstatement to occur while waiting for outstanding se_cmd backend I/O to complete. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
