https://bugzilla.kernel.org/show_bug.cgi?id=44731 Mirek Rusin <mirek@xxxxxx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mirek@xxxxxx --- Comment #1 from Mirek Rusin <mirek@xxxxxx> 2012-07-13 14:06:39 --- Some additional information: - this hang situation happens very rarely, I'd say maybe every 10TBytes of data written (at 1Gbit/sec). - there are maximum of 32 threads doing io. - each io operation is at most 0.5MB of data (written or read) per syscall with an exception of fallocate, which can be rarely large, ie. 60GB. - this situation happens on both empty volumes (where fallocate can find continuous blocks to do any requested fallocate) and, what seems more often, when disk is close to being full. - the volume is LSI RAID6 with 500MB cache and 24x 2TB hard drives - i'm able to do several hundred of ios per second normally, the hang seems to be caused by the kernel itself and not hardware - during the hang i can access and write to the volume from other processes/threads. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
