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Date: Tue, 16 Apr 2013 12:31:08 +0300
From: Jaakko Heinonen <jh@FreeBSD.org>
To: Ivan Voras <ivoras@FreeBSD.org>
Subject: Re: svn commit: r249508 - in head/sys: conf geom/label
Message-ID: <20130416093108.GA26598@jh>
References: <201304151609.r3FG9Oga079482@svn.freebsd.org>
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On 2013-04-15, Ivan Voras wrote:
>   Introduce glabel labels based on GEOM ident attributes. In this initial
>   implementation, error on the side of conservatism and only create labels
>   for GEOMs of classes DISK and MULTIPATH.

After this commit I get a panic on boot. My kernel has been compiled
with gcc.

panic: stack overflow detected; backtrace may be corrupted
cpuid = 1
KDB: enter: panic
[ thread pid 13 tid 100009 ]
Stopped at      kdb_enter+0x3a: movl    $0,kdb_why
db> bt
Tracing pid 13 tid 100009 td 0xc7322000
kdb_enter(c0f374a2,c0f374a2,c0f3a31b,c6edbabc,1,...) at kdb_enter+0x3a/frame 0xc6edba7c
vpanic(c6edbabc,c6edbabc,c0a3ee02,c0f3a31b,c6edbb50,...) at vpanic+0x12d/frame 0xc6edbaa4
panic(c0f3a31b,c6edbb50,c09a5d98,c6edbb90,c6edbadc,...) at panic+0x14/frame 0xc6edbab0
__stack_chk_fail(c6edbb90,c6edbadc,c6edbad8,c6edbadc,1,...) at __stack_chk_fail+0x12/frame 0xc6edbabc
g_label_disk_ident_taste(c7511e40,c6edbb90,80,15e,0,...) at g_label_disk_ident_taste+0x138/frame 0xc6edbb50
g_label_taste(c105a5e0,c732be00,0,229,c732bd80,...) at g_label_taste+0x486/frame 0xc6edbc4c
g_new_provider_event(c732be00,0,c0f29730,100,80246,...) at g_new_provider_event+0xe8/frame 0xc6edbc6c
g_run_events(c10de890,0,c0f29f9d,79,c6edbcf4,...) at g_run_events+0x31c/frame 0xc6edbcb0
g_event_procbody(0,c6edbd08,c0f30630,3d7,c72b92e8,...) at g_event_procbody+0x93/frame 0xc6edbcc8
fork_exit(c099da20,0,c6edbd08) at fork_exit+0xc0/frame 0xc6edbcf4
fork_trampoline() at fork_trampoline+0x8/frame 0xc6edbcf4
--- trap 0, eip = 0, esp = 0xc6edbd40, ebp = 0 ---

-- 
Jaakko