Re: [REGRESSION next-20170410] Commit a6ff6cbf1fab ("usb: xhci: Add helper function xhci_set_power_on().") breaks armada-385
On Thu, 13 Apr 2017 09:29:23 +0300
Mathias Nyman wrote:
> On 12.04.2017 10:47, Ralph Sennhauser wrote:
> > Hi Guoqing Zhang,
> >
> > Commit a6ff6cbf1fabe7500d8ac25e133e3346db0a0fca ("usb: xhci: Add
> > helper function xhci_set_power_on().") causes a null pointer
> > dereference on an armada-385. Below the kernel as well as the
> > bisect log.
>
> Seems Guoqing Zhang is not currently reachable
> I'll send a fix for this, adding you to cc.
>
> Can you check if it solves the issue on armada-385?
Hi Mathias
Sure, I don't mind to test a fix. You already sent it out. Give me a
couple hours to get to it.
Thanks
Ralph
>
> Thanks
> -Mathias
>
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Re: [REGRESSION next-20170410] Commit a6ff6cbf1fab ("usb: xhci: Add helper function xhci_set_power_on().") breaks armada-385
On 12.04.2017 10:47, Ralph Sennhauser wrote:
Hi Guoqing Zhang,
Commit a6ff6cbf1fabe7500d8ac25e133e3346db0a0fca ("usb: xhci: Add helper
function xhci_set_power_on().") causes a null pointer dereference on an
armada-385. Below the kernel as well as the bisect log.
Seems Guoqing Zhang is not currently reachable
I'll send a fix for this, adding you to cc.
Can you check if it solves the issue on armada-385?
Thanks
-Mathias
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[REGRESSION next-20170410] Commit a6ff6cbf1fab ("usb: xhci: Add helper function xhci_set_power_on().") breaks armada-385
Hi Guoqing Zhang,
Commit a6ff6cbf1fabe7500d8ac25e133e3346db0a0fca ("usb: xhci: Add helper
function xhci_set_power_on().") causes a null pointer dereference on an
armada-385. Below the kernel as well as the bisect log.
Regards
Ralph
[2.481636] Unable to handle kernel NULL pointer dereference at virtual
address
[2.489758] pgd = c0004000
[2.492479] [] *pgd=
[2.496069] Internal error: Oops: 5 [#1] SMP ARM
[2.500702] Modules linked in:
[2.503769] CPU: 0 PID: 605 Comm: kworker/0:2 Not tainted
4.11.0-rc6-next-20170410 #3
[2.511629] Hardware name: Marvell Armada 380/385 (Device Tree)
[2.517578] Workqueue: events deferred_probe_work_func
[2.522737] task: def09600 task.stack: de688000
[2.527285] PC is at _raw_spin_unlock_irqrestore+0x28/0x2c
[2.532791] LR is at 0x0
[2.535333] pc : []lr : [<>]psr: 6010
[2.535333] sp : ip : de689720 fp : de68971c
[2.546856] r10: r9 : 8013 r8 : 0001
[2.552100] r7 : 0001 r6 : 000206e1 r5 : e0aa4430 r4 : df575168
[2.558651] r3 : 0003 r2 : de6d1340 r1 : r0 : df575168
[2.565204] Flags: nZCv IRQs on FIQs on Mode USER_32 ISA ARM Segment
kernel
[2.572628] Control: 10c5387d Table: 404a DAC: 0055
[2.578395] Process kworker/0:2 (pid: 605, stack limit = 0xde688210)
[2.584782] ---[ end trace 6795d9561f630b41 ]---
[2.589417] Kernel panic - not syncing: Fatal exception
[2.594663] CPU1: stopping
[2.597382] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D
4.11.0-rc6-next-20170410 #3
[2.606115] Hardware name: Marvell Armada 380/385 (Device Tree)
[2.612056] Backtrace:
[2.614518] [] (dump_backtrace) from []
(show_stack+0x18/0x1c)
[2.622118] r7:df467f28 r6:6193 r5:c0a15c70 r4:
[2.627801] [] (show_stack) from []
(dump_stack+0x94/0xa8)
[2.635054] [] (dump_stack) from []
(handle_IPI+0x178/0x198)
[2.642478] r7:df467f28 r6: r5:0001 r4:c0a2fcb0
[2.648160] [] (handle_IPI) from []
(gic_handle_irq+0x90/0x94)
[2.655759] r7:df467f28 r6:e080210c r5:c0a03fac r4:c0a16080
[2.661440] [] (gic_handle_irq) from []
(__irq_svc+0x6c/0x90)
[2.668951] Exception stack(0xdf467f28 to 0xdf467f70)
[2.674023] 7f20: 0001 c0118e60
df466000 c0a03cf8
[2.682233] 7f40: c0a03cac c0969488 df467f98 df467f84
df467f88 df467f78
[2.690443] 7f60: c01085ac c01085b0 6013
[2.695514] r9:df466000 r8: r7:df467f5c r6: r5:6013
r4:c01085b0
[2.703290] [] (arch_cpu_idle) from []
(default_idle_call+0x28/0x34)
[2.711416] [] (default_idle_call) from []
(do_idle+0x1a4/0x1d0)
[2.719192] [] (do_idle) from []
(cpu_startup_entry+0x20/0x24)
[2.726793] r10: r9:414fc091 r8:406a r7:c0a2fcc0 r6:10c0387d
r5:0001
[2.734652] r4:0086
[2.737195] [] (cpu_startup_entry) from []
(secondary_start_kernel+0x150/0x15c)
[2.746277] [] (secondary_start_kernel) from [<0010162c>]
(0x10162c)
[2.753527] r5:0051 r4:1f45c06a
[2.757117] Rebooting in 1 seconds..
---
git bisect start
# bad: [f8c97bdb49832d2b0edaa0c05db873aa2f6101ff] Add linux-next specific
files for 20170410
git bisect bad f8c97bdb49832d2b0edaa0c05db873aa2f6101ff
# good: [c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201] Linux 4.11-rc1
git bisect good c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201
# good: [1902aaff4d92a3839ab1bb8764b8ce34d7302050] Merge remote-tracking
branch 'crypto/master'
git bisect good 1902aaff4d92a3839ab1bb8764b8ce34d7302050
# good: [ebfd6b2f85a82b2833187961e97b2d9bf91b996e] Merge remote-tracking
branch 'devicetree/for-next'
git bisect good ebfd6b2f85a82b2833187961e97b2d9bf91b996e
# bad: [5c1e203c899abd637f89234344ddd30044d9b77c] Merge remote-tracking
branch 'extcon/extcon-next'
git bisect bad 5c1e203c899abd637f89234344ddd30044d9b77c
# good: [508fe66c67f2201e3ea873b679c6e0112302db43] Merge remote-tracking
branch 'kvm/linux-next'
git bisect good 508fe66c67f2201e3ea873b679c6e0112302db43
# bad: [e8c7b5db5108ea627d088dffd3a7c235aafe9343] Merge remote-tracking
branch 'usb/usb-next'
git bisect bad e8c7b5db5108ea627d088dffd3a7c235aafe9343
# good: [e8ce3e093a5ae3547b804413b1853e8ca2397940] Merge remote-tracking
branch 'workqueues/for-next'
git bisect good e8ce3e093a5ae3547b804413b1853e8ca2397940
# bad: [96d9a6eb97d77d6a3768f101f400c42743799bb2] usb: xhci: fix link trb
decoding
git bisect bad 96d9a6eb97d77d6a3768f101f400c42743799bb2
# good: [50129f74548b5075187fa4908c2ba3a081ec1b67] USB: ftdi-elan: refactor
endpoint retrieval
git bisect good 50129f74548b5075187fa4908c2ba3a081ec1b67
# good: [2c930e3d0aed1505e86e0928d323df5027817740] usb: misc: add missing
continue in switch
git bisect good 2c930e3d0aed1505e86
