Re: kern/56581: audiocfg: Kernel panic on USB audio test use

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/56581; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56581: audiocfg: Kernel panic on USB audio test use
Date: Sun, 26 Dec 2021 08:57:44 -0000 (UTC)

 vazub%acc.zubko.cc@localhost writes:
 
 >Dec 25 15:35:43 nbsd savecore: reboot after panic: [ 112.2831794] panic: kernel diagnostic assertion "xfer == SIMPLEQ_FIRST(&pipe->up_queue)" failed: file "/home/vazub/code/github.com/netbsd/src/sys/dev/usb/usbdi.c", line 1058 xfer 0xffffd49e869c1df8 is not start of queue (0xffffd49e903fc040 is at start)
 
 That could be a bug in xhci regarding isochronous transfers.