On Tue, Mar 04, 2014 at 08:15:36PM -0800, Roland Dreier wrote: > > Hm, no one seems to have said anything for the past 5 years about this. > > It definitely is hard to hit -- you have to do "shutdown" or "reboot" > right as something schedules async work. In our case we have some > systems with a large and slightly flaky SAS fabric, so there's a > constant level of re-probing SCSI disks, and we occasionally see > reboots hanging due to waiting for never-finishing sd probe async > work. > > AFAICT the synchronization does nothing useful and is just a remnant > of a patch series where the real meat didn't get applied. But of > course it would be great if Shaohua could confirm my understanding.
Shaohua's email address seems to now bounce :( Arjan, any thoughts? greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
