Re: kern/51254: uvm assertion failed

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR kern/51254; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/51254: uvm assertion failed
Date: Sun, 19 Jun 2016 08:07:23 +0200

 Here is a version with the extended debug message:
 
 panic: kernel diagnostic assertion "!topdown || hint <= orig_hint" failed: file "
 ../../../../uvm/uvm_map.c", line 2116 hint: fffffffff7ffc000, orig_hint: fffffff
 fce116000
 
 if I followed correctly, this is /bin/sh and the vmmap should be this:
 
 db{0}> show map /f 113077890
 MAP 0x113077890: [0->0xffffffffffffffff]
         #ent=11, sz=124854272, ref=1, version=15, flags=0x41
         pmap=0x11307a7c0(resident=25, wired=0)
  - 0x112b6b630: 0x86f04000->0x86f34000: obj=0x1049202a0/0, amap=0x0/0
         submap=F, cow=T, nc=T, prot(max)=5/7, inh=1, wc=0, adv=0
  - 0x1049a5ce0: 0x87034000->0x87038000: obj=0x1049202a0/0x30000, amap=0x113a4c9b
 0/0
         submap=F, cow=T, nc=F, prot(max)=7/7, inh=1, wc=0, adv=0
  - 0x1057c0400: 0x87038000->0x8703a000: obj=0x0/0, amap=0x113609410/0
         submap=F, cow=T, nc=F, prot(max)=7/7, inh=1, wc=0, adv=0
  - 0x1049b4dc0: 0x8703a000->0x8703c000: obj=0x0/0, amap=0x0/0
         submap=F, cow=T, nc=T, prot(max)=7/7, inh=1, wc=0, adv=0
  - 0x1050ed740: 0xffffffffcdff8000->0xffffffffce000000: obj=0x0/0, amap=0x113609
 780/0
         submap=F, cow=T, nc=F, prot(max)=3/7, inh=1, wc=0, adv=0
  - 0x112b657d0: 0xffffffffce000000->0xffffffffce014000: obj=0x1049213b0/0, amap=
 0x0/0
         submap=F, cow=T, nc=T, prot(max)=5/7, inh=1, wc=0, adv=0
  - 0x1135f40b0: 0xffffffffce014000->0xffffffffce114000: obj=0x0/0, amap=0x0/0
         submap=F, cow=T, nc=T, prot(max)=0/7, inh=1, wc=0, adv=0
  - 0x10969c410: 0xffffffffce114000->0xffffffffce116000: obj=0x0/0, amap=0x113609
 8c0/0
         submap=F, cow=T, nc=F, prot(max)=3/7, inh=1, wc=0, adv=0
  - 0x113620a50: 0xfffffffff7ffe000->0xffffffffff3ba000: obj=0x0/0, amap=0x0/0
         submap=F, cow=T, nc=T, prot(max)=0/7, inh=1, wc=0, adv=0
  - 0x112b646f0: 0xffffffffff3ba000->0xffffffffff5a0000: obj=0x0/0, amap=0x0/0
         submap=F, cow=T, nc=T, prot(max)=3/7, inh=1, wc=0, adv=0
  - 0x113672bd0: 0xffffffffff5a0000->0xffffffffff5ba000: obj=0x0/0, amap=0x1051f1
 470/0
         submap=F, cow=T, nc=F, prot(max)=3/7, inh=1, wc=0, adv=0
 
 Martin