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Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue+0x1d8/0x1f0

Started byBart Van Assche <Bart.VanAssche@wdc.com>
First post2017-08-16 20:20 +0200
Last post2017-08-18 06:50 +0200
Articles 5 — 3 participants

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  Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111  __blk_mq_run_hw_queue+0x1d8/0x1f0 Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-16 20:20 +0200
    Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111  __blk_mq_run_hw_queue+0x1d8/0x1f0 Brian King <brking@linux.vnet.ibm.com> - 2017-08-16 22:20 +0200
      Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111  __blk_mq_run_hw_queue+0x1d8/0x1f0 Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-17 17:40 +0200
        Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111  __blk_mq_run_hw_queue+0x1d8/0x1f0 Brian King <brking@linux.vnet.ibm.com> - 2017-08-17 21:20 +0200
          Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111  __blk_mq_run_hw_queue+0x1d8/0x1f0 Abdul Haleem <abdhalee@linux.vnet.ibm.com> - 2017-08-18 06:50 +0200

#1713211 — Re: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue+0x1d8/0x1f0

FromBart Van Assche <Bart.VanAssche@wdc.com>
Date2017-08-16 20:20 +0200
SubjectRe: WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue+0x1d8/0x1f0
Message-ID<ufb58-21P-23@gated-at.bofh.it>
On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote:
> Linux-next booted with the below warnings on powerpc
> 
> [ ... ]
> 
> boot warnings:
> --------------
> kvm: exiting hardware virtualization
> ------------[ cut here ]------------
> WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue
> +0x1d8/0x1f0
> Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
> Call Trace:
> [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue
> +0x1f0/0x210
> [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80
> [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0
> [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0
> [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660
> [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0
> [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60
> [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0
> [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170
> [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160
> [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0
> [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350
> [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0
> [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620
> [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290
> [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410
> [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24
> [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190
> [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common
> +0x158/0x160

Hello Brian,

In the MAINTAINERS file I found the following:

IBM Power Linux RAID adapter
M:      Brian King <brking@us.ibm.com>
S:      Supported
F:      drivers/scsi/ipr.*

Is that information up-to-date? Do you agree that the above message indicates
a bug in the ipr driver?

Thanks,

Bart.

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#1713291

FromBrian King <brking@linux.vnet.ibm.com>
Date2017-08-16 22:20 +0200
Message-ID<ufcXg-3dc-17@gated-at.bofh.it>
In reply to#1713211
On 08/16/2017 01:15 PM, Bart Van Assche wrote:
> On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote:
>> Linux-next booted with the below warnings on powerpc
>>
>> [ ... ]
>>
>> boot warnings:
>> --------------
>> kvm: exiting hardware virtualization
>> ------------[ cut here ]------------
>> WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue
>> +0x1d8/0x1f0
>> Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
>> Call Trace:
>> [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue
>> +0x1f0/0x210
>> [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80
>> [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0
>> [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0
>> [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660
>> [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0
>> [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60
>> [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0
>> [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170
>> [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160
>> [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0
>> [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350
>> [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0
>> [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620
>> [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290
>> [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410
>> [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24
>> [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190
>> [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common
>> +0x158/0x160
> 
> Hello Brian,
> 
> In the MAINTAINERS file I found the following:
> 
> IBM Power Linux RAID adapter
> M:      Brian King <brking@us.ibm.com>
> S:      Supported
> F:      drivers/scsi/ipr.*
> 
> Is that information up-to-date? Do you agree that the above message indicates
> a bug in the ipr driver?

Yes. Can you try with this patch that is in 4.13/scsi-fixes:

https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.13/scsi-fixes&id=b0e17a9b0df29590c45dfb296f541270a5941f41

Thanks,

Brian

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center

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#1714153

FromBart Van Assche <Bart.VanAssche@wdc.com>
Date2017-08-17 17:40 +0200
Message-ID<ufv3Q-6Mn-25@gated-at.bofh.it>
In reply to#1713291
On Wed, 2017-08-16 at 15:10 -0500, Brian King wrote:
> On 08/16/2017 01:15 PM, Bart Van Assche wrote:
> > On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote:
> > > Linux-next booted with the below warnings on powerpc
> > > 
> > > [ ... ]
> > > 
> > > boot warnings:
> > > --------------
> > > kvm: exiting hardware virtualization
> > > ------------[ cut here ]------------
> > > WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue
> > > +0x1d8/0x1f0
> > > Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
> > > Call Trace:
> > > [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue
> > > +0x1f0/0x210
> > > [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80
> > > [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0
> > > [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0
> > > [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660
> > > [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0
> > > [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60
> > > [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0
> > > [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170
> > > [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160
> > > [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0
> > > [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350
> > > [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0
> > > [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620
> > > [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290
> > > [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410
> > > [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24
> > > [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190
> > > [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common
> > > +0x158/0x160
> > 
> > Hello Brian,
> > 
> > In the MAINTAINERS file I found the following:
> > 
> > IBM Power Linux RAID adapter
> > M:      Brian King <brking@us.ibm.com>
> > S:      Supported
> > F:      drivers/scsi/ipr.*
> > 
> > Is that information up-to-date? Do you agree that the above message indicates
> > a bug in the ipr driver?
> 
> Yes. Can you try with this patch that is in 4.13/scsi-fixes:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.13/scsi-fixes&id=b0e17a9b0df29590c45dfb296f541270a5941f41

Hello Brian,

Sorry but I don't have access to a setup on which I can test the ipr driver ...

Bart.

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#1714326

FromBrian King <brking@linux.vnet.ibm.com>
Date2017-08-17 21:20 +0200
Message-ID<ufyuK-KQ-23@gated-at.bofh.it>
In reply to#1714153
On 08/17/2017 10:32 AM, Bart Van Assche wrote:
> On Wed, 2017-08-16 at 15:10 -0500, Brian King wrote:
>> On 08/16/2017 01:15 PM, Bart Van Assche wrote:
>>> On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote:
>>>> Linux-next booted with the below warnings on powerpc
>>>>
>>>> [ ... ]
>>>>
>>>> boot warnings:
>>>> --------------
>>>> kvm: exiting hardware virtualization
>>>> ------------[ cut here ]------------
>>>> WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue
>>>> +0x1d8/0x1f0
>>>> Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
>>>> Call Trace:
>>>> [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue
>>>> +0x1f0/0x210
>>>> [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80
>>>> [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0
>>>> [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0
>>>> [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660
>>>> [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0
>>>> [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60
>>>> [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0
>>>> [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170
>>>> [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160
>>>> [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0
>>>> [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350
>>>> [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0
>>>> [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620
>>>> [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290
>>>> [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410
>>>> [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24
>>>> [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190
>>>> [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common
>>>> +0x158/0x160
>>>
>>> Hello Brian,
>>>
>>> In the MAINTAINERS file I found the following:
>>>
>>> IBM Power Linux RAID adapter
>>> M:      Brian King <brking@us.ibm.com>
>>> S:      Supported
>>> F:      drivers/scsi/ipr.*
>>>
>>> Is that information up-to-date? Do you agree that the above message indicates
>>> a bug in the ipr driver?
>>
>> Yes. Can you try with this patch that is in 4.13/scsi-fixes:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.13/scsi-fixes&id=b0e17a9b0df29590c45dfb296f541270a5941f41
> 
> Hello Brian,
> 
> Sorry but I don't have access to a setup on which I can test the ipr driver ...

Understood. That request was intended for Abdul, who reported the issue.
I should have just cc'ed you...

Thanks,

Brian

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center

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#1714559

FromAbdul Haleem <abdhalee@linux.vnet.ibm.com>
Date2017-08-18 06:50 +0200
Message-ID<ufHol-6Np-1@gated-at.bofh.it>
In reply to#1714326
On Thu, 2017-08-17 at 14:18 -0500, Brian King wrote:
> On 08/17/2017 10:32 AM, Bart Van Assche wrote:
> > On Wed, 2017-08-16 at 15:10 -0500, Brian King wrote:
> >> On 08/16/2017 01:15 PM, Bart Van Assche wrote:
> >>> On Wed, 2017-08-16 at 23:37 +0530, Abdul Haleem wrote:
> >>>> Linux-next booted with the below warnings on powerpc
> >>>>
> >>>> [ ... ]
> >>>>
> >>>> boot warnings:
> >>>> --------------
> >>>> kvm: exiting hardware virtualization
> >>>> ------------[ cut here ]------------
> >>>> WARNING: CPU: 15 PID: 0 at block/blk-mq.c:1111 __blk_mq_run_hw_queue
> >>>> +0x1d8/0x1f0
> >>>> Modules linked in: iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
> >>>> Call Trace:
> >>>> [c000000ffff37990] [c00000000088f7b0] __blk_mq_delay_run_hw_queue
> >>>> +0x1f0/0x210
> >>>> [c000000ffff379d0] [c00000000088fcb8] blk_mq_start_hw_queue+0x58/0x80
> >>>> [c000000ffff379f0] [c00000000088fd40] blk_mq_start_hw_queues+0x60/0xb0
> >>>> [c000000ffff37a30] [c000000000ae2b54] scsi_kick_queue+0x34/0xa0
> >>>> [c000000ffff37a50] [c000000000ae2f70] scsi_run_queue+0x3b0/0x660
> >>>> [c000000ffff37ac0] [c000000000ae7ed4] scsi_run_host_queues+0x64/0xc0
> >>>> [c000000ffff37b00] [c000000000ae7f64] scsi_unblock_requests+0x34/0x60
> >>>> [c000000ffff37b20] [c000000000b14998] ipr_ioa_bringdown_done+0xf8/0x3a0
> >>>> [c000000ffff37bc0] [c000000000b12528] ipr_reset_ioa_job+0xd8/0x170
> >>>> [c000000ffff37c00] [c000000000b18790] ipr_reset_timer_done+0x110/0x160
> >>>> [c000000ffff37c50] [c00000000024db50] call_timer_fn+0xa0/0x3a0
> >>>> [c000000ffff37ce0] [c00000000024e058] expire_timers+0x1b8/0x350
> >>>> [c000000ffff37d50] [c00000000024e2f0] run_timer_softirq+0x100/0x3e0
> >>>> [c000000ffff37df0] [c000000000162edc] __do_softirq+0x20c/0x620
> >>>> [c000000ffff37ee0] [c000000000163a80] irq_exit+0x230/0x290
> >>>> [c000000ffff37f10] [c00000000001d770] __do_irq+0x170/0x410
> >>>> [c000000ffff37f90] [c00000000003ea20] call_do_irq+0x14/0x24
> >>>> [c0000007f84e3a70] [c00000000001dae0] do_IRQ+0xd0/0x190
> >>>> [c0000007f84e3ac0] [c000000000008c58] hardware_interrupt_common
> >>>> +0x158/0x160
> >>>
> >>> Hello Brian,
> >>>
> >>> In the MAINTAINERS file I found the following:
> >>>
> >>> IBM Power Linux RAID adapter
> >>> M:      Brian King <brking@us.ibm.com>
> >>> S:      Supported
> >>> F:      drivers/scsi/ipr.*
> >>>
> >>> Is that information up-to-date? Do you agree that the above message indicates
> >>> a bug in the ipr driver?
> >>
> >> Yes. Can you try with this patch that is in 4.13/scsi-fixes:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.13/scsi-fixes&id=b0e17a9b0df29590c45dfb296f541270a5941f41
> > 

Hi Brian,

The patch fixes the warning, Thanks for the fix.

Tested-by : Abdul Haleem <abdhalee@linux.vnet.ibm.com>

-- 
Regard's

Abdul Haleem
IBM Linux Technology Centre

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