From: Oliver Graute <oliver.graute@gmail.com>
To: linux-input@vger.kernel.org
Cc: dmitry.torokhov@gmail.com, rydberg@bitmath.org,
andriy.shevchenko@linux.intel.com, m.felsch@pengutronix.de,
robh@kernel.org, mylene.josserand@bootlin.com,
p.zabel@pengutronix.de
Subject: Re: RFC: Input: edt-ft5x06 - FT6336G Touch Panel
Date: Mon, 16 Mar 2020 15:57:36 +0100 [thread overview]
Message-ID: <20200316145736.GG16310@optiplex> (raw)
In-Reply-To: <20200305163649.GC10366@ripley>
On 02/03/20, Oliver Graute wrote:
> Hello,
>
> I have on of these FT6336G Touch Panels here and I try to get it work
> with the ft6236 driver. It comes up with model identification "0x11". So
> I added that identification to the switch case in
> edt_ft5x06_ts_identify(). But it crashes directly after the probe with a
> corrupted stack. No clue why. Some ideas?
I still observe sometimes crashes with ft6236G. When it occurs it is
always a stack corruption in the probe function on bootup.
No clue why stack is corrupted sometimes. Is this related to the buggy
revision field?
Some further suggestions for debugging this?
[ 3.806780] edt_ft5x06 1-0038: Model "EP0110M09", Rev. "�", 0x0 sensors
[ 3.808468] at24 2-0050: 2-0050 supply vcc not found, using dummy regulator
[ 3.814864] DEBUG: edt_ft5x06_ts_probe 1201
[ 3.826215] DEBUG: edt_ft5x06_ts_probe 1211
[ 3.830512] DEBUG: edt_ft5x06_ts_probe 1214
[ 3.834904] input: EP0110M09 as /devices/platform/bus@5a000000/5a820000.i2c/i2c-1/1-0038/input/input0
[ 3.844164] at24 2-0050: 4096 byte 24c32 EEPROM, writable, 1 bytes/write
[ 3.844264] DEBUG: edt_ft5x06_ts_probe 1222
[ 3.850919] i2c i2c-2: LPI2C adapter registered
[ 3.855187] edt_ft5x06 1-0038: EDT FT5x06 initialized: IRQ 55, WAKE pin -1, Reset pin -1.
[ 3.867878] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: edt_ft5x06_ts_probe+0x5c4/0xb00
[ 3.878579] CPU: 4 PID: 115 Comm: kworker/u10:2 Not tainted 5.6.0-rc1-next-20200214-00057-g9e78f1560095-dirty #99
[ 3.888838] Hardware name: Advantech iMX8QM DMSSE20 (DT)
[ 3.894153] Workqueue: events_unbound async_run_entry_fn
[ 3.899465] Call trace:
[ 3.901909] dump_backtrace+0x0/0x1c0
[ 3.905571] show_stack+0x14/0x20
[ 3.908884] dump_stack+0xb4/0xfc
[ 3.912202] panic+0x158/0x320
[ 3.914929] mmc0: SDHCI controller on 5b010000.mmc [5b010000.mmc] using ADMA
[ 3.915254] print_tainted+0x0/0xa8
[ 3.915262] edt_ft5x06_ts_probe+0x5c4/0xb00
[ 3.930063] i2c_device_probe+0x2d0/0x2f8
[ 3.934074] really_probe+0xd8/0x438
[ 3.935270] sdhci-esdhc-imx 5b030000.mmc: Got CD GPIO
[ 3.937642] driver_probe_device+0xdc/0x130
[ 3.937648] __device_attach_driver+0x88/0x108
[ 3.942717] sdhci-esdhc-imx 5b030000.mmc: Got WP GPIO
[ 3.946872] bus_for_each_drv+0x74/0xc0
[ 3.946875] __device_attach_async_helper+0xb4/0x100
[ 3.946877] async_run_entry_fn+0x40/0x1a0
[ 3.946883] process_one_work+0x19c/0x320
[ 3.973252] worker_thread+0x48/0x420
[ 3.976913] kthread+0xf0/0x120
[ 3.980051] ret_from_fork+0x10/0x18
[ 3.983634] SMP: stopping secondary CPUs
[ 3.987558] Kernel Offset: disabled
[ 3.991048] CPU features: 0x10002,2100600c
[ 3.995148] Memory Limit: none
[ 3.998201] ---[ end Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: edt_ft5x06_ts_probe+0x5c4/0xb00 ]---
Best Regards,
Oliver
next prev parent reply other threads:[~2020-03-16 15:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-02 14:30 RFC: Input: edt-ft5x06 - FT6336G Touch Panel Oliver Graute
2020-03-02 15:00 ` Andy Shevchenko
2020-03-02 17:15 ` Oliver Graute
2020-03-02 18:43 ` Marco Felsch
2020-03-03 19:37 ` Oliver Graute
2020-03-04 7:10 ` Marco Felsch
2020-03-05 16:36 ` Oliver Graute
2020-03-16 14:57 ` Oliver Graute [this message]
2020-03-16 16:30 ` Andy Shevchenko
2020-03-16 20:01 ` Marco Felsch
2020-03-17 16:57 ` Oliver Graute
2020-03-17 17:40 ` Andy Shevchenko
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