Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On , [EMAIL PROTECTED] said: > On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ Still seeing this in -rc4-mm1.. > With git-block.patch applied, my system locks up *hard* at system shutdown > time - even alt-sysrq doesn't do anything. Need to do the "power button for > 5" > stunt to get the system back. And today's chef's special is wild crow, tastefully prepared in a stir-fry with broccoli and mixed asiatic vegetables, served on a bed of steamed rice... It doesn't look quite as locked up hard when you fix the ##$*&% script that did an 'echo 0 > /proc/sys/kernel/sysrq' :) Here's the hand-copied traceback: __mutex_lock_slowpath+0x22/0xaa mutex_lock+0xe/0x10 synchronize_rcu+0x23/0xc5 blk_sync_queue+0x1d/0x5a blk_release_queue+0x19/0x65 kobject_cleanup+0x53/0x72 kobject_release+0x0/0xf kobject_release+0xd/0xf kref_put+0x5f/0x6b kobject_put+0x19/0x1b blk_put_queue+0x43/0x48 dm_put+0x11f/0x133 dev_remove+0xa3/0xb7 ctl_ioctl+0x24f/0x29f dev_remove+0x0/0xb7 file_has_perm+0xa7/0xb6 do_ioctl+0x5e/0x77 vfs_ioctl+0x252/0x26f sys_ioctl+0x5f/0x82 tracesys+0xdc/0xe1 > The system is Fedora Core 6/Rawhide, and the last command issued (from > /etc/rc6.d/S01reboot) is "/sbin/cryptsetup remove swap". It hits that, > and *wham* we're dead. Works fine if I revert git-block.patch. > > The line from /etc/crypttab for the encrypted swap: > > swap /dev/mapper/VolGroup00-swap /dev/urandom swap,cipher=aes-cbc-essiv:sha256 pgpCvj877UsH7.pgp Description: PGP signature
Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On , [EMAIL PROTECTED] said: On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ Still seeing this in -rc4-mm1.. With git-block.patch applied, my system locks up *hard* at system shutdown time - even alt-sysrq doesn't do anything. Need to do the power button for 5 stunt to get the system back. And today's chef's special is wild crow, tastefully prepared in a stir-fry with broccoli and mixed asiatic vegetables, served on a bed of steamed rice... It doesn't look quite as locked up hard when you fix the ##$*% script that did an 'echo 0 /proc/sys/kernel/sysrq' :) Here's the hand-copied traceback: __mutex_lock_slowpath+0x22/0xaa mutex_lock+0xe/0x10 synchronize_rcu+0x23/0xc5 blk_sync_queue+0x1d/0x5a blk_release_queue+0x19/0x65 kobject_cleanup+0x53/0x72 kobject_release+0x0/0xf kobject_release+0xd/0xf kref_put+0x5f/0x6b kobject_put+0x19/0x1b blk_put_queue+0x43/0x48 dm_put+0x11f/0x133 dev_remove+0xa3/0xb7 ctl_ioctl+0x24f/0x29f dev_remove+0x0/0xb7 file_has_perm+0xa7/0xb6 do_ioctl+0x5e/0x77 vfs_ioctl+0x252/0x26f sys_ioctl+0x5f/0x82 tracesys+0xdc/0xe1 The system is Fedora Core 6/Rawhide, and the last command issued (from /etc/rc6.d/S01reboot) is /sbin/cryptsetup remove swap. It hits that, and *wham* we're dead. Works fine if I revert git-block.patch. The line from /etc/crypttab for the encrypted swap: swap /dev/mapper/VolGroup00-swap /dev/urandom swap,cipher=aes-cbc-essiv:sha256 pgpCvj877UsH7.pgp Description: PGP signature
Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Mon, 08 Jan 2007 09:55:24 +0100, Jens Axboe said: > On Sat, Jan 06 2007, [EMAIL PROTECTED] wrote: > > On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc 3/2.6.20-rc3-mm1/ > > > > With git-block.patch applied, my system locks up *hard* at system > > shutdown time - even alt-sysrq doesn't do anything. Need to do the > > "power button for 5" stunt to get the system back. > > Does this change anything? > > diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c > index ec40e44..bae57e0 100644 > --- a/block/ll_rw_blk.c > +++ b/block/ll_rw_blk.c > @@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q) >* If the current process is plugged and has barriers submitted, >* we will livelock if we don't unplug first. >*/ > - blk_unplug_current(); > + blk_replug_current_nested(); > > synchronize_qrcu(>qrcu); > } Nope, still hangs exactly the same way. Maybe I need to get the watchdog timer stuff working, and see if that can kick the system in a way that produces a backtrace pgpuPH9wYrcuM.pgp Description: PGP signature
Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Mon, 08 Jan 2007 09:55:24 +0100, Jens Axboe said: On Sat, Jan 06 2007, [EMAIL PROTECTED] wrote: On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc 3/2.6.20-rc3-mm1/ With git-block.patch applied, my system locks up *hard* at system shutdown time - even alt-sysrq doesn't do anything. Need to do the power button for 5 stunt to get the system back. Does this change anything? diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ec40e44..bae57e0 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q) * If the current process is plugged and has barriers submitted, * we will livelock if we don't unplug first. */ - blk_unplug_current(); + blk_replug_current_nested(); synchronize_qrcu(q-qrcu); } Nope, still hangs exactly the same way. Maybe I need to get the watchdog timer stuff working, and see if that can kick the system in a way that produces a backtrace pgpuPH9wYrcuM.pgp Description: PGP signature
Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Sat, Jan 06 2007, [EMAIL PROTECTED] wrote: > On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ > > With git-block.patch applied, my system locks up *hard* at system > shutdown time - even alt-sysrq doesn't do anything. Need to do the > "power button for 5" stunt to get the system back. Does this change anything? diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ec40e44..bae57e0 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q) * If the current process is plugged and has barriers submitted, * we will livelock if we don't unplug first. */ - blk_unplug_current(); + blk_replug_current_nested(); synchronize_qrcu(>qrcu); } -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Sat, Jan 06 2007, [EMAIL PROTECTED] wrote: On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ With git-block.patch applied, my system locks up *hard* at system shutdown time - even alt-sysrq doesn't do anything. Need to do the power button for 5 stunt to get the system back. Does this change anything? diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ec40e44..bae57e0 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q) * If the current process is plugged and has barriers submitted, * we will livelock if we don't unplug first. */ - blk_unplug_current(); + blk_replug_current_nested(); synchronize_qrcu(q-qrcu); } -- Jens Axboe - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ With git-block.patch applied, my system locks up *hard* at system shutdown time - even alt-sysrq doesn't do anything. Need to do the "power button for 5" stunt to get the system back. The system is Fedora Core 6/Rawhide, and the last command issued (from /etc/rc6.d/S01reboot) is "/sbin/cryptsetup remove swap". It hits that, and *wham* we're dead. Works fine if I revert git-block.patch. The line from /etc/crypttab for the encrypted swap: swap /dev/mapper/VolGroup00-swap /dev/urandom swap,cipher=aes-cbc-essiv:sha256 This ring any bells? I haven't gotten ambitious enough yet to look for individual commits inside the git-block.patch (this is just one of 3 issues I've having to bisect in -mm this time around...) pgpVkFIsZ2DtR.pgp Description: PGP signature
2.6.20-rc3-mm1 - git-block.patch causes hard lockups
On Thu, 04 Jan 2007 22:02:00 PST, Andrew Morton said: ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/ With git-block.patch applied, my system locks up *hard* at system shutdown time - even alt-sysrq doesn't do anything. Need to do the power button for 5 stunt to get the system back. The system is Fedora Core 6/Rawhide, and the last command issued (from /etc/rc6.d/S01reboot) is /sbin/cryptsetup remove swap. It hits that, and *wham* we're dead. Works fine if I revert git-block.patch. The line from /etc/crypttab for the encrypted swap: swap /dev/mapper/VolGroup00-swap /dev/urandom swap,cipher=aes-cbc-essiv:sha256 This ring any bells? I haven't gotten ambitious enough yet to look for individual commits inside the git-block.patch (this is just one of 3 issues I've having to bisect in -mm this time around...) pgpVkFIsZ2DtR.pgp Description: PGP signature
