Panic after updating

[Jakob Alvermark]

On 1/12/21 2:16 PM, Hans Petter Selasky wrote:
> On 1/12/21 1:43 PM, Jakob Alvermark wrote:
>>
>> On 1/12/21 12:54 PM, Hans Petter Selasky wrote:
>>> On 1/12/21 12:32 PM, Jakob Alvermark wrote:
>>>> Alright, after a new bisect run I got a different result, so I most 
>>>> likely did something wrong the first time.
>>>>
>>>> ff3468ac94597efdcbc56f372528dfc98b114dac is the first bad commit
>>>> commit ff3468ac94597efdcbc56f372528dfc98b114dac
>>>> Author: Ian Lepore <ian at FreeBSD.org>
>>>> Date:   Sat Dec 12 18:34:15 2020 +0000
>>>>
>>>>      Provide userland notification of gpio pin changes ("userland 
>>>> gpio interrupts").
>>>>
>>>>
>>>> Maybe more likely this is causing the panic?
>>>
>>> Doesn't make sense :-(
>>>
>>> Can you try to fetch the latest 13-current as of now and re-build 
>>> the kernel? I noticed some issues myself which got fixed.
>>
>>
>> I did that, still panics the same way.
>>
>> But, the commit above is about gpio, and I do have 
>> 'bytgpio_load="YES"' in my /boot/loader.conf
>>
>> If I boot the kernel without that it works.
>>
>> 'kldload bytgpio' panics the machine.
>>
>
> Could you screenshot the panic backtrace after kldload of bytegpio ?

Sure:

panic: vm_fault_lookup: fault on nofault entry, addr: 0xfffffe00c96c2000
cpuid = 1
time = 1610458544
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 
0xfffffe00c7306140
vpanic() at vpanic+0x181/frame 0xfffffe00c7306190
panic() at panic+0x43/frame 0xfffffe00c73061f0
vm_fault() at vm_fault+0x142d/frame 0xfffffe00c73062f0
vm_fault_trap() at vm_fault_trap+0xb1/frame 0xfffffe00c7306340
trap_pfault() at trap_pfault+0x1f6/frame 0xfffffe00c73063a0
trap() at trap+0x280/frame 0xfffffe00c73064b0
calltrap() at calltrap+0x8/frame 0xfffffe00c73064b0
--- trap 0xc, rip = 0xffffffff80c27d08, rsp = 0xfffffe00c7306580, rbp = 
0xfffffe00c7306580 ---
lock_init() at lock_init+0xf8/frame 0xfffffe00c7306580
_mtx_init() at _mtx_init+0x70/frame 0xfffffe00c73065a0
gpioc_attach() at gpioc_attach+0x139/frame 0xfffffe00c7306620
device_attach() at device_attach+0x3dd/frame 0xfffffe00c7306670
bus_generic_attach() at bus_generic_attach+0x4b/frame 0xfffffe00c73066a0
gpiobus_attach_bus() at gpiobus_attach_bus+0x44/frame 0xfffffe00c73066c0
bytgpio_attach() at bytgpio_attach+0x1f7/frame 0xfffffe00c7306710
device_attach() at device_attach+0x3dd/frame 0xfffffe00c7306760
device_probe_and_attach() at device_probe_and_attach+0x41/frame 
0xfffffe00c7306790
acpi_driver_added() at acpi_driver_added+0xaa/frame 0xfffffe00c73067c0
devclass_driver_added() at devclass_driver_added+0x3c/frame 
0xfffffe00c7306800
devclass_add_driver() at devclass_add_driver+0x13d/frame 0xfffffe00c7306840
module_register_init() at module_register_init+0xa7/frame 0xfffffe00c7306870
linker_load_module() at linker_load_module+0xbca/frame 0xfffffe00c7306b80
kern_kldload() at kern_kldload+0xbb/frame 0xfffffe00c7306bd0
sys_kldload() at sys_kldload+0x5b/frame 0xfffffe00c7306c00
amd64_syscall() at amd64_syscall+0x111/frame 0xfffffe00c7306d30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00c7306d30
--- syscall (304, FreeBSD ELF64, sys_kldload), rip = 0x80037715a, rsp = 
0x7fffffffe698, rbp = 0x7fffffffec10 ---
KDB: enter: panic

Jakob