Re: kern/52383: NetBSD 7 crashes with and urndis(4) devices since newer USB stack

[Pierre Pronchery <khorben%defora.org@localhost>]

The following reply was made to PR kern/52383; it has been noted by GNATS.

From: Pierre Pronchery <khorben%defora.org@localhost>
To: Soren Jacobsen <snj%NetBSD.org@localhost>, gnats-bugs%NetBSD.org@localhost,
 Nick Hudson <skrll%NetBSD.org@localhost>
Cc: 
Subject: Re: kern/52383: NetBSD 7 crashes with and urndis(4) devices since
 newer USB stack
Date: Sat, 4 Nov 2017 17:42:51 +0100

 			Hi Soren, Nick,
 
 On 25/08/2017 07:05, Soren Jacobsen wrote:
 > The following reply was made to PR kern/52383; it has been noted by GNATS.
 > 
 > From: Soren Jacobsen <snj%blef.org@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc: khorben%defora.org@localhost
 > Subject: Re: kern/52383: NetBSD 7 crashes with and urndis(4) devices since
 >  newer USB stack
 > Date: Thu, 24 Aug 2017 22:01:28 -0700
 > 
 >  Do you see this on netbsd-8 too?
 
 I just got the chance to test it, and unfortunately yes :(
 
 (Last commit message: 310, 311, 317, 322, 323, 325, 327-329)
 
 Here is the backtrace I obtained, on NetBSD/amd64 again:
 (typed here by hand)
 
 > panic: kernel diagnostic assertion "requested_size > 0" failed: file "[...]/src/sys/kern/subr_kmem.c", line 261
 > fatal breakpoint trap in supervisor mode
 > trap type 1 code 0 rip 0xffffffff80224a05 cs 0x0 rflags 0x246 cr2 0x4f8b10 ilevel 0 rsp 0xfffffe81167e5b30
 > curlwp 0xfffffe81167171c0 pid 0.76 lowest kstack 0xfffffe81167e22c0
 > Stopped in pid 0.76 (system) at netbsd:breakpoint+0x5:  leave
 > db{0}> bt
 > breakpoint() at netbsd:breakpoint+0x5
 > vpanic() at netbsd:vpanic+0x140
 > cb_voltag_convert_in() at netbsd:ch_voltag_convert_in
 > kmem_intr_alloc() at netbsd:kmem_intr_alloc+0x161
 > kmem_alloc() at netbsd:kmem_alloc+0x4a
 > usbd_set_config_index.part.7() at netbsd:usbd_set_config_index.part.7+0x225
 > usbd_probe_and_attach() at netbsd:usbd_probe_and_attach+0xa7
 > xhci_new_device() at netbsd:xhci_new_device+0x671
 > usbd_new_device() at netbsd:usbd_new_device+0x3e
 > uhub_explore() at netbsd:uhub_explore+0x2f4
 > usb_discover.isra.2() at netbsd:usb_discover.isra.2+0x4e
 > usb_event_thread() at netbsd:usb_event_thread+0x7c
 
 HTH,
 -- 
 khorben