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Date:      Thu, 20 Jul 2006 12:30:21 GMT
From:      "Dominique Goncalves" <dominique.goncalves@gmail.com>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/87255: [md] [panic] large malloc-backed mfs crashes the system
Message-ID:  <200607201230.k6KCULh4092984@freefall.freebsd.org>

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The following reply was made to PR kern/87255; it has been noted by GNATS.

From: "Dominique Goncalves" <dominique.goncalves@gmail.com>
To: bug-followup@FreeBSD.org, yar@comp.chem.msu.su
Cc:  
Subject: Re: kern/87255: [md] [panic] large malloc-backed mfs crashes the system
Date: Thu, 20 Jul 2006 14:28:52 +0200

 Hi,
 
 On a recent FreeBSD 7.0-CURRENT #11: Tue Jul 18 11:12:05 CEST 2006, I
 can also reproduce this panic. It's a bit annoying because I use
 FreeBSD with freesbie2 on USB keys.
 
 What's the status of this issue ?
 
 Let me know if you need more information.
 
 Regards.
 
 g_vfs_done():md5[WRITE(offset=51625984, length=131072)]error = 28
 [...]
 g_vfs_done():md5[WRITE(offset=118456320, length=6144)]error = 28
 panic: bundirty: buffer 0xcbe94148 still on queue 1
 cpuid = 0
 KDB: enter: panic
 [thread pid 3 tid 100001 ]
 Stopped at      kdb_enter+0x2b: nop
 db> trace
 Tracing pid 3 tid 100001 td 0xc237fd80
 kdb_enter(c0955759) at kdb_enter+0x2b
 panic(c095e295,cbe94148,1,cbe94148,d26a1c54,...) at panic+0x127
 bundirty(cbe94148) at bundirty+0x35
 brelse(cbe94148) at brelse+0x823
 bufdone_finish(cbe94148) at bufdone_finish+0x32a
 bufdone(cbe94148) at bufdone+0xaa
 ffs_vget(cbe94148) at ffs_vget+0x9ae
 bufdone(cbe94148) at bufdone+0x8f
 g_getattr__(c279f8c4) at g_getattr__+0xca
 biodone(c279f8c4) at biodone+0x58
 g_io_schedule_up(c237fd80) at g_io_schedule_up+0xe6
 g_print_bio(0,d26a1d38) at g_print_bio+0xfa
 fork_exit(c068f38c,0,d26a1d38) at fork_exit+0xa4
 fork_trampoline() at fork_trampoline+0x8
 --- trap 0x1, eip = 0, esp = 0xd26a1d6c, ebp = 0 ---
 db>
 
 -- 
 There's this old saying: "Give a man a fish, feed him for a day. Teach
 a man to fish, feed him for life."



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