On 01/08/2018 06:11 PM, Yves-Alexis Perez wrote: > On Mon, 2018-01-08 at 13:04 +0100, Hannes Reinecke wrote: >> The abort handler might be racing with command completion, so the >> task might already be NULL by the time the abort handler is called. > > Hi, > > I tried the patch on top of 4.15-rc7 (and without the revert of 90965761). I > don't have the NULL pointer deref anymore, but the box timeouts after SCSI > init. It's not completely dead, but I don't have any meaningful log from the > kernel. > Can you try to boot the stock 4.15 kernel (without any patches) with scsi_mod.scsi_logging_level=9411 on the kernel commandline and send me tha output? I really would like to see which command fails. THX. 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)