From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] pool curalloc bug
Date: Mon, 2 Mar 2015 00:06:36 -0800 [thread overview]
Message-ID: <c861fe457b5e52ffd70a12b2e332d67e@brasstown.quanstro.net> (raw)
In-Reply-To: <411f4ed7862275a46cf5a477a3aff0c4@sigma.offblast.org>
On Wed Feb 25 18:40:39 PST 2015, mischief@9.offblast.org wrote:
> does anyone care to take a stab at figuring out why mainmem->curalloc underflows? here's a c program to reproduce.
>
i can't replicate this on amd64/9atom
; 6.curalloc
6.curalloc 786: suicide: sys: trap: fault read addr=0x0 pc=0x202761
acid; stk()
abort()+0x0 /sys/src/libc/9sys/abort.c:6
main(argv=0xfedfff80,argc=0x0)+0x54 /usr/quanstro/curalloc.c:41
_main+0x40 /sys/src/libc/amd64/main9.s:15
; 6c -a curalloc.c>curalloc.acid
; acid -l curalloc.acid 786
/proc/786/text:amd64 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/amd64
acid; (Pool)mainmem
name 0x00400248
maxsize 0
cursize 1072693248
curfree 16
curalloc 0 <---
minarena 0
quantum 1076101120
minblock 1852399981
freeroot 0x00000000
arenalist 0xfaf0f1fe
alloc 0x00000000
merge 0x00000000
move 0xfedffef8
flags 32
nfree 0
lastcompact 2106590
lock 0x00000023
unlock 0x002024de
print 0x00000025
panic 0x00201f75
logstack 0x0000002b
private 0x002024de
- erik
next prev parent reply other threads:[~2015-03-02 8:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-26 2:38 mischief
2015-02-26 22:27 ` mischief
2015-03-02 8:06 ` erik quanstrom [this message]
2015-03-02 10:10 ` cinap_lenrek
2015-03-02 10:23 ` cinap_lenrek
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