On 01/08/2018 11:11 AM, Christoph Hellwig wrote: > Hannes said he was going to look into this, which makes sense > given that he designed the async abort code. > > On Fri, Jan 05, 2018 at 01:13:48PM +0100, Yves-Alexis Perez wrote: >> Hi, >> >> since kernel 4.11 (sorry it took so long to report) I have a box failing to >> boot with a NULL pointer dereference (the box is stuck there afterwards). >> >> The bug has also been reported to the Debian BTS (https://bugs.debian.org/cgi- >> bin/bugreport.cgi?bug=882414) and a suggestion to revert 90965761 has been >> made. I can confirm it fix the boot issue. >> >> I don't have the complete stack trace at hand but there's an example in the >> Debian bug. The machine is a Dell Precision T5600 with the following SATA >> controllers: >> >> 00:1f.2 SATA controller: Intel Corporation C600/X79 series chipset 6-Port SATA >> AHCI Controller (rev 05) >> 05:00.0 Serial Attached SCSI controller: Intel Corporation C602 chipset 4-Port >> SATA Storage Control Unit (rev 05) >> >> If you need more information or need me to test something, please ask. >> >> Regards, >> -- >> Yves-Alexis > > ---end quoted text--- > Looks like we're calling lldd_abort_task() with a NULL argument. Will be sending a patch. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
