I can try openSUSE Leap, certainly. However, those debugging statements are going to be hard - the process lockup occurs at initial module load, before init really starts doing much of anything. I've even tried passing init=/bin/bash on the commandline, with no luck - I never made it to a shell before things went south. For the same reason, there are no logs to speak of, alas - but I can try seeing if I can get a serial console going, as that will let me dump output. I'll verify that the driver in OpenSUSE Leap has the same issue, and will open a bug report when it (almost certainly!) dies the same way. On Fri, Jul 14, 2023 at 2:04 AM Hannes Reinecke <hare@xxxxxxx> wrote: > > On 7/13/23 21:21, Mike Edwards wrote: > > I spun up an old machine (with an even older Mylex AcceleRAID card, the > > 170 w/ a bios dated Jan 21, 2000 - yikes!) recently. While this machine > > was running an old 4.7 kernel and booted fine, attempting to update it > > to a modern release of Debian with a 6.1 kernel caused the kernel to > > hang while booting, with a number of stuck tasks warnings, starting with > > udev-worker and including kworker kernel processes. > > > > During troubleshooting, I was able to identify the myrb/myrs drivers > > which replaced the old DAC960 driver (removed in commit > > 6956b956934f10c19eca2a1d44f50a3bee860531) as the culprit. The last > > kernel to successfully boot on here is 4.19.x, while anything newer > > exhibits the same stuck processes - and indeed, blacklisting the myrb > > and myrs drivers allows 6.1 to boot on this machine. > > > > I know this card is functional, as I do have two drives attached to it, > > and both it and the drives work fine in 4.19 and older kernels, so the > > issue seems to be with the newer myrb/myrs drivers. Is there a chance > > of fixing the current drivers, or, at worst, reintroducing the old > > deprecated DAC960 driver back into the kernel? I'm not absolutely tied > > to using that driver, other than 'it just works' for this card. > > Whee, someone is using it! > I'm not alone! > > But sure, of course I'll help. > Can you try install openSUSE Leap on it? Then you can open a bugzilla on > our side, and we can track and discuss things there. Debugging via > e-mail tends to be very distracting to others not directly involved. > > For starters, a message log might help. And please enable dynamic debug > via > > echo 'file drivers/scsi/myrs.c +p' > \ > /sys/kernel/debug/dynamic_debug/control > echo 'file drivers/scsi/myrb.c +p' > \ > /sys/kernel/debug/dynamic_debug/control > > Cheers, > > Hannes > -- > Dr. Hannes Reinecke Kernel Storage Architect > hare@xxxxxxx +49 911 74053 688 > SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg > HRB 36809 (AG Nürnberg), Geschäftsführer: Ivo Totev, Andrew > Myers, Andrew McDonald, Martje Boudien Moerman >
