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Date:      Tue, 25 Nov 2014 17:38:30 +0000
From:      Ruslan Bukin <br@freebsd.org>
To:        Gleb Smirnoff <glebius@FreeBSD.org>
Cc:        Konstantin Belousov <kostikbel@gmail.com>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r274914 - in head/sys: kern sys ufs/ffs vm
Message-ID:  <20141125173830.GA60905@bsdpad.com>
In-Reply-To: <20141125152922.GX47144@FreeBSD.org>
References:  <201411231201.sANC1rW1025589@svn.freebsd.org> <20141124110537.GA41282@bsdpad.com> <20141124173733.GI17068@kib.kiev.ua> <20141124180356.GA47782@bsdpad.com> <20141124192902.GQ47144@FreeBSD.org> <20141124211620.GA49975@bsdpad.com> <20141125073145.GT47144@FreeBSD.org> <20141125122754.GA57252@bsdpad.com> <20141125152922.GX47144@FreeBSD.org>

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On Tue, Nov 25, 2014 at 06:29:22PM +0300, Gleb Smirnoff wrote:
> R> Un-unioning helps partially: I receive much less panics and able to boot until login prompt in ~ 1/3 attempts with patch attached.
> 
> What happens then? Same panic as w/o patch?
> 

Same random panics:

[..]
Starting file system checks:
/dev/vtbd0: 344 files, 22588 used, 3419 free (3 frags, 427 blocks, 0.0% fragmentation)
MAP: No valid partition found at vtbd0
MAP: No valid partition found at md0
MAP: No valid partition found at md0
panic: vm_page_insert_after: msucc doesn't succeed pindex
KDB: enter: panic
[ thread pid 53 tid 100030 ]
Stopped at      kdb_enter+0x8c: lui     at,0x0
db> bt
Tracing pid 53 tid 100030 td 0x9800000000b8f000
db_trace_thread+40 (?,?,?,?) ra ffffffff80117654 sp c0000000056d90f0 sz 16
ffffffff801174c8+18c (0,?,ffffffff,?) ra ffffffff80116730 sp c0000000056d9100 sz 48
ffffffff801162a8+488 (?,?,?,?) ra ffffffff801169fc sp c0000000056d9130 sz 192
db_command_loop+f4 (?,?,?,?) ra ffffffff8011a570 sp c0000000056d91f0 sz 16
ffffffff8011a3c8+1a8 (?,?,?,?) ra ffffffff80282338 sp c0000000056d9200 sz 816
kdb_trap+188 (?,?,?,?) ra ffffffff804b10a4 sp c0000000056d9530 sz 64
trap+1114 (?,?,?,?) ra ffffffff8049c63c sp c0000000056d9570 sz 288
MipsKernGenException+154 (0,4,804f60d0,12f) ra ffffffff80281ed4 sp c0000000056d9690 sz 368
kdb_enter+8c (?,?,?,?) ra ffffffff80234398 sp c0000000056d9800 sz 16
ffffffff802341e8+1b0 (?,?,?,?) ra ffffffff802344c8 sp c0000000056d9810 sz 32
kassert_panic+c8 (?,4,b82c00,3d7) ra ffffffff8047c580 sp c0000000056d9830 sz 96
ffffffff8047c460+120 (?,?,?,?) ra ffffffff8047ff28 sp c0000000056d9890 sz 64
vm_page_alloc+7f8 (?,?,?,?) ra ffffffff80464524 sp c0000000056d98d0 sz 80
ffffffff80463a00+b24 (?,?,?,?) ra 0 sp c0000000056d9920 sz 272
pid 53

Starting file system checks:
/dev/vtbd0: 344 files, 22588 used, 3419 free (3 frags, 427 blocks, 0.0% fragmentation)
MAP: No valid partition found at vtbd0
MAP: No valid partition found at md0
MAP: No valid partition found at md0
panic: Bad link elm 0x9800000000bb3000 prev->next != elm
KDB: enter: panic
[ thread pid 44 tid 100030 ]
Stopped at      kdb_enter+0x8c: lui     at,0x0
db> bt
Tracing pid 44 tid 100030 td 0x9800000000b8f000
db_trace_thread+40 (?,?,?,?) ra ffffffff80117654 sp c0000000056d8ea0 sz 16
ffffffff801174c8+18c (0,?,ffffffff,?) ra ffffffff80116730 sp c0000000056d8eb0 sz 48
ffffffff801162a8+488 (?,?,?,?) ra ffffffff801169fc sp c0000000056d8ee0 sz 192
db_command_loop+f4 (?,?,?,?) ra ffffffff8011a570 sp c0000000056d8fa0 sz 16
ffffffff8011a3c8+1a8 (?,?,?,?) ra ffffffff80282338 sp c0000000056d8fb0 sz 816
kdb_trap+188 (?,?,?,?) ra ffffffff804b10a4 sp c0000000056d92e0 sz 64
trap+1114 (?,?,?,?) ra ffffffff8049c63c sp c0000000056d9320 sz 288
MipsKernGenException+154 (0,4,804f60d0,12f) ra ffffffff80281ed4 sp c0000000056d9440 sz 368
kdb_enter+8c (?,?,?,?) ra ffffffff80234398 sp c0000000056d95b0 sz 16
ffffffff802341e8+1b0 (?,?,?,?) ra ffffffff80234400 sp c0000000056d95c0 sz 32
panic+30 (?,bb3000,8051f738,8051f738) ra ffffffff804790c8 sp c0000000056d95e0 sz 96
vm_object_deallocate+960 (?,?,?,?) ra ffffffff8046b184 sp c0000000056d9640 sz 96
ffffffff8046b158+2c (?,?,?,?) ra ffffffff8046b2a4 sp c0000000056d96a0 sz 32
ffffffff8046b1e8+bc (?,?,?,?) ra ffffffff8046b308 sp c0000000056d96c0 sz 32
_vm_map_unlock+40 (?,?,?,?) ra ffffffff8046d990 sp c0000000056d96e0 sz 16
vm_map_remove+98 (?,?,?,?) ra ffffffff801eb2e4 sp c0000000056d96f0 sz 32
exec_new_vmspace+274 (?,?,?,?) ra ffffffff801c4ea0 sp c0000000056d9710 sz 80
ffffffff801c4828+678 (?,?,?,?) ra ffffffff801eb81c sp c0000000056d9760 sz 304
kern_execve+404 (?,?,?,?) ra ffffffff801ec6b4 sp c0000000056d9890 sz 784
sys_execve+44 (?,?,?,?) ra ffffffff804b0a88 sp c0000000056d9ba0 sz 80
trap+af8 (?,?,?,?) ra ffffffff8049c880 sp c0000000056d9bf0 sz 288
MipsUserGenException+13c (?,?,?,600e30b4) ra 0 sp c0000000056d9d10 sz 0
pid 44
db> 

Ruslan



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