Re: kern/53183: System stops servicing I/O requests and eventually deadlocks

[Sevan Janiyan <venture37%geeklan.co.uk@localhost>]

The following reply was made to PR kern/53183; it has been noted by GNATS.

From: Sevan Janiyan <venture37%geeklan.co.uk@localhost>
To: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%NetBSD.org@localhost>
Cc: 
Subject: Re: kern/53183: System stops servicing I/O requests and eventually deadlocks
Date: Sun, 15 Apr 2018 13:32:13 +0100

 > On 15 Apr 2018, at 10:25, Martin Husemann <martin%duskware.de@localhost> wrote:
 >=20
 > We need a kernel crash dump from the locked up state, and preferable a
 > coresponding netbsd.gdb.
 
 Ok
 
 > Since you can get into ddb, could you try to create that and make it
 > available?
 
 I tried but can't.
 I've set sysctl ddb.onpanic=3D1
 when the system hangs, I enter ddb & issue sync,instead of dumping to disk, I=
  get
 Dumping to dev0,1 offset 1588
 Dump fatal page fault in supervisor mode
 Trap type 6 code 0x2 eip 0xc0118429 cs 0x8 eflags 0x10246 cr2 0xdc576860 ile=
 vel 0x8 esp 0xc13100c0
 curlwp 0xc370fd20 pid 0 lid 2 lowest kstack 0xdb02a2c0
 kernel: supervisor trap page fault, code=3D0
 stopped in pid 0.2 (system) at netbsd:dodumpsys+0x323: orb %dl,0(%eax)