* [BUG] crash when removing sun4i_gpadc_iio module
@ 2017-05-02 6:46 Corentin Labbe
2017-05-07 15:14 ` Jonathan Cameron
0 siblings, 1 reply; 3+ messages in thread
From: Corentin Labbe @ 2017-05-02 6:46 UTC (permalink / raw)
To: quentin.schulz, jic23, knaack.h, lars, pmeerw, maxime.ripard, wens
Cc: linux-iio, linux-arm-kernel, linux-kernel
Hello
When inserting sun4i_gpadc_iio I got the following error in dmesg:
[79961.039826] thermal thermal_zone0: failed to read out thermal zone (-110)
Then removing the module cause an oops:
[80105.370937] Unable to handle kernel paging request at virtual address bf0ad1d0
[80105.370958] pgd = c0004000
[80105.370968] [bf0ad1d0] *pgd=6e470811, *pte=00000000, *ppte=00000000
[80105.371009] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
[80105.376940] Modules linked in: algif_aead ccm gcm algif_rng crypto_user algif_skcipher algif_hash af_alg ghash_generic aes_arm_bs axp20x_ac_power axp20x_usb_power axp20x_adc gpio_axp209 nvmem_sunxi_sid sun4i_ss sun4i_dma virt_dma [last unloaded: sun4i_gpadc_iio]
[80105.400199] CPU: 0 PID: 14663 Comm: kworker/0:0 Tainted: G W 4.11.0-rc8-next-20170428+ #96
[80105.409581] Hardware name: Allwinner sun7i (A20) Family
[80105.414821] Workqueue: events_freezable thermal_zone_device_check
[80105.420915] task: ee7d2880 task.stack: ea4fa000
[80105.425447] PC is at 0xbf0ad1d0
[80105.428594] LR is at arch_timer_read_counter_long+0x14/0x18
[80105.434166] pc : [<bf0ad1d0>] lr : [<c010eab8>] psr: 60070013
sp : ea4fbea8 ip : ee7d2e00 fp : 00000001
[80105.445630] r10: ea4fbed4 r9 : 0000007b r8 : 00000000
[80105.450852] r7 : ee7ffc14 r6 : ee7ff800 r5 : c09e2260 r4 : 0000005a
[80105.457373] r3 : c058e3d4 r2 : fac81000 r1 : 000001bf r0 : 00005dbf
[80105.463897] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[80105.471025] Control: 10c5387d Table: 66c9c06a DAC: 00000051
[80105.476766] Process kworker/0:0 (pid: 14663, stack limit = 0xea4fa210)
[80105.483288] Stack: (0xea4fbea8 to 0xea4fc000)
[80105.487648] bea0: 00000001 00000010 ee7ffbc0 ea4fbefc ef26dad4 ef7c2500
[80105.495821] bec0: ea4fbf28 00000000 00000000 bf0ad7e0 00000001 c070e80c c055d600 ef26d800
[80105.503994] bee0: ea4fbefc c055d614 00000000 ef26d800 ef7bef00 c055b040 ea4fbf28 ef26db20
[80105.512167] bf00: ef26db20 edf65680 ef7bef00 c013b374 00000001 00000000 c013b304 c013b798
[80105.520340] bf20: 00000000 00000000 c12624a4 c0dcdf20 00000000 c09c0e10 c0c04900 ef7bef00
[80105.528512] bf40: edf65698 00000008 c0c04900 ef7bef34 ea4fa000 ef7bef00 edf65680 c013b6f8
[80105.536685] bf60: ef7bf09c 00000000 edf65680 edf65380 00000000 e6c90700 edf65680 c013b6c0
[80105.544858] bf80: edf653b8 edf91e84 00000000 c01415c0 e6c90700 c0141484 00000000 00000000
[80105.553030] bfa0: 00000000 00000000 00000000 c01079b8 00000000 00000000 00000000 00000000
[80105.561202] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[80105.569374] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 6fffd861 6fffdc61
[80105.577558] [<c010eab8>] (arch_timer_read_counter_long) from [<00000010>] (0x10)
[80105.584952] Code: bad PC value
[80105.588283] ---[ end trace ff84d9d449c6a5b5 ]---
Regards
Corentin Labbe
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [BUG] crash when removing sun4i_gpadc_iio module
2017-05-02 6:46 [BUG] crash when removing sun4i_gpadc_iio module Corentin Labbe
@ 2017-05-07 15:14 ` Jonathan Cameron
2017-05-09 7:42 ` Quentin Schulz
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Cameron @ 2017-05-07 15:14 UTC (permalink / raw)
To: Corentin Labbe, quentin.schulz, knaack.h, lars, pmeerw,
maxime.ripard, wens
Cc: linux-iio, linux-arm-kernel, linux-kernel
On 02/05/17 07:46, Corentin Labbe wrote:
> Hello
Beyond picking up in a quick code inspection I'm afraid. Quentin
can you take a look at this? I guess its triggering as a result
of the call to read the temperature failing, but beyond that - no
idea!
Jonathan
>
> When inserting sun4i_gpadc_iio I got the following error in dmesg:
> [79961.039826] thermal thermal_zone0: failed to read out thermal zone (-110)
>
> Then removing the module cause an oops:
> [80105.370937] Unable to handle kernel paging request at virtual address bf0ad1d0
> [80105.370958] pgd = c0004000
> [80105.370968] [bf0ad1d0] *pgd=6e470811, *pte=00000000, *ppte=00000000
> [80105.371009] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
> [80105.376940] Modules linked in: algif_aead ccm gcm algif_rng crypto_user algif_skcipher algif_hash af_alg ghash_generic aes_arm_bs axp20x_ac_power axp20x_usb_power axp20x_adc gpio_axp209 nvmem_sunxi_sid sun4i_ss sun4i_dma virt_dma [last unloaded: sun4i_gpadc_iio]
> [80105.400199] CPU: 0 PID: 14663 Comm: kworker/0:0 Tainted: G W 4.11.0-rc8-next-20170428+ #96
> [80105.409581] Hardware name: Allwinner sun7i (A20) Family
> [80105.414821] Workqueue: events_freezable thermal_zone_device_check
> [80105.420915] task: ee7d2880 task.stack: ea4fa000
> [80105.425447] PC is at 0xbf0ad1d0
> [80105.428594] LR is at arch_timer_read_counter_long+0x14/0x18
> [80105.434166] pc : [<bf0ad1d0>] lr : [<c010eab8>] psr: 60070013
> sp : ea4fbea8 ip : ee7d2e00 fp : 00000001
> [80105.445630] r10: ea4fbed4 r9 : 0000007b r8 : 00000000
> [80105.450852] r7 : ee7ffc14 r6 : ee7ff800 r5 : c09e2260 r4 : 0000005a
> [80105.457373] r3 : c058e3d4 r2 : fac81000 r1 : 000001bf r0 : 00005dbf
> [80105.463897] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> [80105.471025] Control: 10c5387d Table: 66c9c06a DAC: 00000051
> [80105.476766] Process kworker/0:0 (pid: 14663, stack limit = 0xea4fa210)
> [80105.483288] Stack: (0xea4fbea8 to 0xea4fc000)
> [80105.487648] bea0: 00000001 00000010 ee7ffbc0 ea4fbefc ef26dad4 ef7c2500
> [80105.495821] bec0: ea4fbf28 00000000 00000000 bf0ad7e0 00000001 c070e80c c055d600 ef26d800
> [80105.503994] bee0: ea4fbefc c055d614 00000000 ef26d800 ef7bef00 c055b040 ea4fbf28 ef26db20
> [80105.512167] bf00: ef26db20 edf65680 ef7bef00 c013b374 00000001 00000000 c013b304 c013b798
> [80105.520340] bf20: 00000000 00000000 c12624a4 c0dcdf20 00000000 c09c0e10 c0c04900 ef7bef00
> [80105.528512] bf40: edf65698 00000008 c0c04900 ef7bef34 ea4fa000 ef7bef00 edf65680 c013b6f8
> [80105.536685] bf60: ef7bf09c 00000000 edf65680 edf65380 00000000 e6c90700 edf65680 c013b6c0
> [80105.544858] bf80: edf653b8 edf91e84 00000000 c01415c0 e6c90700 c0141484 00000000 00000000
> [80105.553030] bfa0: 00000000 00000000 00000000 c01079b8 00000000 00000000 00000000 00000000
> [80105.561202] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [80105.569374] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 6fffd861 6fffdc61
> [80105.577558] [<c010eab8>] (arch_timer_read_counter_long) from [<00000010>] (0x10)
> [80105.584952] Code: bad PC value
> [80105.588283] ---[ end trace ff84d9d449c6a5b5 ]---
>
> Regards
> Corentin Labbe
> --
> To unsubscribe from this list: send the line "unsubscribe linux-iio" 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] 3+ messages in thread
* Re: [BUG] crash when removing sun4i_gpadc_iio module
2017-05-07 15:14 ` Jonathan Cameron
@ 2017-05-09 7:42 ` Quentin Schulz
0 siblings, 0 replies; 3+ messages in thread
From: Quentin Schulz @ 2017-05-09 7:42 UTC (permalink / raw)
To: Jonathan Cameron, Corentin Labbe, knaack.h, lars, pmeerw,
maxime.ripard, wens
Cc: linux-iio, linux-arm-kernel, linux-kernel
Hi,
On 07/05/2017 17:14, Jonathan Cameron wrote:
> On 02/05/17 07:46, Corentin Labbe wrote:
>> Hello
>
> Beyond picking up in a quick code inspection I'm afraid. Quentin
> can you take a look at this? I guess its triggering as a result
> of the call to read the temperature failing, but beyond that - no
> idea!
>
Hadn't had time to look at it last week. Will do this week and keep you
updated on this bug.
Quentin
> Jonathan
>>
>> When inserting sun4i_gpadc_iio I got the following error in dmesg:
>> [79961.039826] thermal thermal_zone0: failed to read out thermal zone (-110)
>>
>> Then removing the module cause an oops:
>> [80105.370937] Unable to handle kernel paging request at virtual address bf0ad1d0
>> [80105.370958] pgd = c0004000
>> [80105.370968] [bf0ad1d0] *pgd=6e470811, *pte=00000000, *ppte=00000000
>> [80105.371009] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
>> [80105.376940] Modules linked in: algif_aead ccm gcm algif_rng crypto_user algif_skcipher algif_hash af_alg ghash_generic aes_arm_bs axp20x_ac_power axp20x_usb_power axp20x_adc gpio_axp209 nvmem_sunxi_sid sun4i_ss sun4i_dma virt_dma [last unloaded: sun4i_gpadc_iio]
>> [80105.400199] CPU: 0 PID: 14663 Comm: kworker/0:0 Tainted: G W 4.11.0-rc8-next-20170428+ #96
>> [80105.409581] Hardware name: Allwinner sun7i (A20) Family
>> [80105.414821] Workqueue: events_freezable thermal_zone_device_check
>> [80105.420915] task: ee7d2880 task.stack: ea4fa000
>> [80105.425447] PC is at 0xbf0ad1d0
>> [80105.428594] LR is at arch_timer_read_counter_long+0x14/0x18
>> [80105.434166] pc : [<bf0ad1d0>] lr : [<c010eab8>] psr: 60070013
>> sp : ea4fbea8 ip : ee7d2e00 fp : 00000001
>> [80105.445630] r10: ea4fbed4 r9 : 0000007b r8 : 00000000
>> [80105.450852] r7 : ee7ffc14 r6 : ee7ff800 r5 : c09e2260 r4 : 0000005a
>> [80105.457373] r3 : c058e3d4 r2 : fac81000 r1 : 000001bf r0 : 00005dbf
>> [80105.463897] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
>> [80105.471025] Control: 10c5387d Table: 66c9c06a DAC: 00000051
>> [80105.476766] Process kworker/0:0 (pid: 14663, stack limit = 0xea4fa210)
>> [80105.483288] Stack: (0xea4fbea8 to 0xea4fc000)
>> [80105.487648] bea0: 00000001 00000010 ee7ffbc0 ea4fbefc ef26dad4 ef7c2500
>> [80105.495821] bec0: ea4fbf28 00000000 00000000 bf0ad7e0 00000001 c070e80c c055d600 ef26d800
>> [80105.503994] bee0: ea4fbefc c055d614 00000000 ef26d800 ef7bef00 c055b040 ea4fbf28 ef26db20
>> [80105.512167] bf00: ef26db20 edf65680 ef7bef00 c013b374 00000001 00000000 c013b304 c013b798
>> [80105.520340] bf20: 00000000 00000000 c12624a4 c0dcdf20 00000000 c09c0e10 c0c04900 ef7bef00
>> [80105.528512] bf40: edf65698 00000008 c0c04900 ef7bef34 ea4fa000 ef7bef00 edf65680 c013b6f8
>> [80105.536685] bf60: ef7bf09c 00000000 edf65680 edf65380 00000000 e6c90700 edf65680 c013b6c0
>> [80105.544858] bf80: edf653b8 edf91e84 00000000 c01415c0 e6c90700 c0141484 00000000 00000000
>> [80105.553030] bfa0: 00000000 00000000 00000000 c01079b8 00000000 00000000 00000000 00000000
>> [80105.561202] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>> [80105.569374] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 6fffd861 6fffdc61
>> [80105.577558] [<c010eab8>] (arch_timer_read_counter_long) from [<00000010>] (0x10)
>> [80105.584952] Code: bad PC value
>> [80105.588283] ---[ end trace ff84d9d449c6a5b5 ]---
>>
>> Regards
>> Corentin Labbe
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-iio" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
>
--
Quentin Schulz, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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