Re: kern/56029: panic trap urtwn ieee80211_crypto_encap

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

The following reply was made to PR kern/56029; it has been noted by GNATS.

From: Patrick Welche <prlw1%cam.ac.uk@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56029: panic trap urtwn ieee80211_crypto_encap
Date: Tue, 2 Mar 2021 15:38:23 +0000

 On Mon, Mar 01, 2021 at 12:15:02PM +0000, Patrick Welche wrote:
 >  At least it is completely reprocible with scp. (ssh is fine.)
 
 Making bisection possible. Reverting sys/dev/usb/if_urtwn.c to v 1.94
 stopped the panics.
 
 
 During testing, I also saw a slightly different backtrace:
 
 sys_reboot() at sys_reboot
 vpanic() at vpanic+0x154
 snprintf() at snprintf
 startlwp() at startlwp
 calltrap() at calltrap+0x11
 urtwn_txeof() at urtwn_txeof+0x74
 usb_transfer_complete() at usb_transfer_complete+0x20c
 xhci_softintr() at xhci_softintr+0x4c6
 usb_soft_intr() at usb_soft_intr+0x1f
 softint_dispatch() at softint_dispatch+0x85
 crash: _kvm_kvatop(ffffd4813c49f0b8)
 crash: kvm_read(0xffffd4813c49f0b8, 8): invalid translation (invalid PTE)