Asus E45M1-M PRO (panic: malloc(M_WAITOK) with sleeping prohibited)

[Alastair Hogge]

On 2021-03-12 12:04, David Wolfskill wrote:
> On Thu, Mar 11, 2021 at 07:57:36PM -0800, Alastair Hogge wrote:
>> Turns out, EFI boot stopped working. The following boots but fails with
>> ...
>> umass0:  SCSI over Bulk-Only; quirks = 0x4001
>> umass0:6:0: Attached to scbus6
>> Root mount waiting for: usbus5 CAM
>> panic: malloc(M_WAITOK) with sleeping prohibited
>> cpuid = 0
>> time = 4
>> KDB: stack backtrace:
>> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame
>> 0xfffffe0081dcf5f0
>> vpanic() at vpanic+0x181/frame 0xfffffe0081dcf640
>> panic() at panic+0x43/frame 0xfffffe0081dcf6a0
>> malloc_dbg() at malloc_dbg+0xd4/frame 0xfffffe0081dcf6c0
>> malloc() at malloc+0x34/frame 0xfffffe0081dcf720
>> disk_alloc() at disk_alloc+0x1c/frame 0xfffffe0081dcf740
>> daregister() at daregister+0x3f4/frame 0xfffffe0081dcf9c0
>> cam_periph_alloc() at cam_periph_alloc+0x57b/frame 0xfffffe0081dcfa90
>> daasync() at daasync+0x2c2/frame 0xfffffe0081dcfb00
>> xpt_async_process_dev() at xpt_async_process_dev+0x152/frame
>> 0xfffffe0081dcfb50
>> xpt_async_process() at xpt_async_process+0x334/frame 0xfffffe0081dcfc60
>> xpt_done_process() at xpt_done_process+0x3a3/frame 0xfffffe0081dcfca0
>> xpt_done_td() at xpt_done_td+0xf5/frame 0xfffffe0081dcfcf0
>> fork_exit() at fork_exit+0x80/frame 0xfffffe0081dcfd30
>> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0081dcfd30
>> --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
>> ....
> 
> You may find the change that's in https://reviews.freebsd.org/D29210
> helps -- the trace looks similar to what I saw, and it has worked for
> me.
> 
> Note that I only saw the panic while running a kernel with INVARIANTS.

Patch works; tested with INVARIANTS only.
Thanks all.

To good health,
Alastair