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To: current@freebsd.org
From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Sun, 13 Jun 2004 18:39:45 +0200
Message-ID: <87190.1087144785@critter.freebsd.dk>
Subject: Netgraph malloc(9) trouble...
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panic: malloc(9)/free(9) confusion.
Probably freeing with wrong type, but maybe not here.
Debugger("panic")
Stopped at      Debugger+0x45:  xchgl   %ebx,in_Debugger.0
db> trace
Debugger(c061e146) at Debugger+0x45
panic(c061c849,c061c813,c0530c81,0,1) at panic+0xbb
free(c0bc9cc0,c06520c0,0,c0bc9cc0,0) at free+0x116
ngmn_rcvmsg(c0aeea00,c0bc9d00,0,0,0) at ngmn_rcvmsg+0x2d1
ng_generic_msg(c0aeea00,c0bc9d00,0,7d1,c0aeea58) at ng_generic_msg+0x11d8
ng_apply_item(c0aeea00,c0bc9d00) at ng_apply_item+0x312
ng_snd_item(c0bc9d00,0,0,c0b502e0,3d) at ng_snd_item+0x703
ngc_send(c0e364f0,0,c0bab400,c0b6f120,0) at ngc_send+0x110
sosend(c0e364f0,c0b6f120,c7fedc54,c0bab400,0) at sosend+0x4a1
kern_sendit(c0be4000,3,c7fedccc,0,0) at kern_sendit+0x128
sendit(c0be4000,3,c7fedccc,0,804f03d) at sendit+0x141
sendto(c0be4000,c7fedd14,6,c,202) at sendto+0x4d
syscall(2f,2f,2f,bfbfe297,bfbfe292) at syscall+0x217

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.