* BUG: workqueue lockup
@ 2016-03-20 15:41 Andreas Schwab
2016-03-20 22:02 ` Michael Schmitz
2016-03-20 22:29 ` Finn Thain
0 siblings, 2 replies; 4+ messages in thread
From: Andreas Schwab @ 2016-03-20 15:41 UTC (permalink / raw)
To: linux-m68k; +Cc: Finn Thain
I'm getting this hangup with 4.5 in aranym:
[ 2.060000] scsi host0: Atari native SCSI, io_port 0x0, n_io_port 0, base 0x0, irq 15, can_queue 8, cmd_per_lun 1, sg_tablesize 0, this_id 7, flags { }, options { REAL_DMA SUPPORT_TAGS }
[ 2.110000] blk_queue_max_segments: set to minimum 1
[ 55.130000] random: nonblocking pool is initialized
[ 60.240000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 58s!
[ 60.270000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 52s!
[ 60.300000] Showing busy workqueues and worker pools:
[ 60.310000] workqueue events: flags=0x0
[ 60.340000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[ 60.340000] pending: cache_reap, do_cache_clean
[ 60.380000] workqueue events_power_efficient: flags=0x80
[ 60.410000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[ 60.410000] pending: fb_flashcursor, neigh_periodic_work
[ 60.450000] workqueue kblockd: flags=0x18
[ 60.470000] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
[ 60.470000] pending: blk_mq_timeout_work
[ 60.500000] workqueue ncr5380_0: flags=0xa
[ 60.530000] pwq 2: cpus=0 node=0 flags=0x4 nice=0 active=1/1
[ 60.530000] in-flight: 6:NCR5380_main
[ 60.560000] pool 2: cpus=0 node=0 flags=0x4 nice=0 hung=58s workers=2 idle: 57
I assume that this has something to do with the ncr5380 updates.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: BUG: workqueue lockup
2016-03-20 15:41 BUG: workqueue lockup Andreas Schwab
@ 2016-03-20 22:02 ` Michael Schmitz
2016-03-20 22:29 ` Finn Thain
1 sibling, 0 replies; 4+ messages in thread
From: Michael Schmitz @ 2016-03-20 22:02 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Linux/m68k, Finn Thain
Hi Andreas,
that's correct - the driver loops forever, retrying unsuccessful
selection attempts.
Finn had submitted a patch to ARAnyM to rectify that. I have prepared
another patch to the kernel (using presence of the natfeatures driver
to detect we're running on ARAnyM, then skipping all platform device
setup) but haven't submitted that yet.
Cheers,
Michael
On Mon, Mar 21, 2016 at 4:41 AM, Andreas Schwab <schwab@linux-m68k.org> wrote:
> I'm getting this hangup with 4.5 in aranym:
>
> [ 2.060000] scsi host0: Atari native SCSI, io_port 0x0, n_io_port 0, base 0x0, irq 15, can_queue 8, cmd_per_lun 1, sg_tablesize 0, this_id 7, flags { }, options { REAL_DMA SUPPORT_TAGS }
> [ 2.110000] blk_queue_max_segments: set to minimum 1
> [ 55.130000] random: nonblocking pool is initialized
> [ 60.240000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 58s!
> [ 60.270000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 52s!
> [ 60.300000] Showing busy workqueues and worker pools:
> [ 60.310000] workqueue events: flags=0x0
> [ 60.340000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
> [ 60.340000] pending: cache_reap, do_cache_clean
> [ 60.380000] workqueue events_power_efficient: flags=0x80
> [ 60.410000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
> [ 60.410000] pending: fb_flashcursor, neigh_periodic_work
> [ 60.450000] workqueue kblockd: flags=0x18
> [ 60.470000] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
> [ 60.470000] pending: blk_mq_timeout_work
> [ 60.500000] workqueue ncr5380_0: flags=0xa
> [ 60.530000] pwq 2: cpus=0 node=0 flags=0x4 nice=0 active=1/1
> [ 60.530000] in-flight: 6:NCR5380_main
> [ 60.560000] pool 2: cpus=0 node=0 flags=0x4 nice=0 hung=58s workers=2 idle: 57
>
> I assume that this has something to do with the ncr5380 updates.
>
> Andreas.
>
> --
> Andreas Schwab, schwab@linux-m68k.org
> GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
> "And now for something completely different."
> --
> To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: BUG: workqueue lockup
2016-03-20 15:41 BUG: workqueue lockup Andreas Schwab
2016-03-20 22:02 ` Michael Schmitz
@ 2016-03-20 22:29 ` Finn Thain
2016-03-21 0:01 ` Andreas Schwab
1 sibling, 1 reply; 4+ messages in thread
From: Finn Thain @ 2016-03-20 22:29 UTC (permalink / raw)
To: Andreas Schwab; +Cc: linux-m68k
On Sun, 20 Mar 2016, Andreas Schwab wrote:
> I'm getting this hangup with 4.5 in aranym:
Are you using this aranym patch?
https://sourceforge.net/p/aranym/bugs/40/
>
> [ 2.060000] scsi host0: Atari native SCSI, io_port 0x0, n_io_port 0, base 0x0, irq 15, can_queue 8, cmd_per_lun 1, sg_tablesize 0, this_id 7, flags { }, options { REAL_DMA SUPPORT_TAGS }
> [ 2.110000] blk_queue_max_segments: set to minimum 1
> [ 55.130000] random: nonblocking pool is initialized
> [ 60.240000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 58s!
> [ 60.270000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 52s!
> [ 60.300000] Showing busy workqueues and worker pools:
> [ 60.310000] workqueue events: flags=0x0
> [ 60.340000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
> [ 60.340000] pending: cache_reap, do_cache_clean
> [ 60.380000] workqueue events_power_efficient: flags=0x80
> [ 60.410000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
> [ 60.410000] pending: fb_flashcursor, neigh_periodic_work
> [ 60.450000] workqueue kblockd: flags=0x18
> [ 60.470000] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
> [ 60.470000] pending: blk_mq_timeout_work
> [ 60.500000] workqueue ncr5380_0: flags=0xa
> [ 60.530000] pwq 2: cpus=0 node=0 flags=0x4 nice=0 active=1/1
> [ 60.530000] in-flight: 6:NCR5380_main
> [ 60.560000] pool 2: cpus=0 node=0 flags=0x4 nice=0 hung=58s workers=2 idle: 57
>
> I assume that this has something to do with the ncr5380 updates.
It also has to do with the assumption that aranym is the same as an atari.
Aranym doesn't actually implement a 5380 device. Instead it attempts to
fool the operating system that runs on it. Presumably this is done to
avoid having to modify existing operating systems.
Does Geert's "initcall_blacklist=atari_scsi_driver_init" workaround help?
--
>
> Andreas.
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-03-21 0:01 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-03-20 15:41 BUG: workqueue lockup Andreas Schwab
2016-03-20 22:02 ` Michael Schmitz
2016-03-20 22:29 ` Finn Thain
2016-03-21 0:01 ` Andreas Schwab
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox