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SubjectRe: 2.6.22-rc4-mm2
From
Andrew Morton pisze:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc4/2.6.22-rc4-mm2/
>

LTP triggered this

[ 4691.872882] ------------[ cut here ]------------
[ 4691.877619] kernel BUG at fs/buffer.c:1821!
[ 4691.881857] invalid opcode: 0000 [#1]
[ 4691.885596] PREEMPT SMP
[ 4691.888205] Modules linked in: isofs nls_base zlib_inflate autofs4 sunrpc af_packet nf_conntrack_netbios_ns nf_conntrack_ipv4 xt_state nf_conntrack nfnetlink ipt_REJECT iptable_filter ip_tables xt_tcpudp ip6t_REJECT ip6table_filter ip6_tables x_tables firmware_class binfmt_misc thermal processor fan container ipv6 nvram loop snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer i2c_i801 snd soundcore intel_agp snd_page_alloc agpgart evdev rtc
[ 4691.937384] CPU: 1
[ 4691.937385] EIP: 0060:[<c04a510f>] Not tainted VLI
[ 4691.937387] EFLAGS: 00010202 (2.6.22-rc4-mm2 #1)
[ 4691.949984] EIP is at __block_prepare_write+0x64/0x3a5
[ 4691.955164] eax: 00000001 ebx: c624fc50 ecx: c07e0910 edx: 00000001
[ 4691.962041] esi: 00000418 edi: 00000000 ebp: cc454dc0 esp: cc454d60
[ 4691.968946] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
[ 4691.974850] Process vmsplice01 (pid: 8420, ti=cc454000 task=cafe6800 task.ti=cc454000)
[ 4691.982699] Stack: cc454d80 c0443c61 00000001 00000001 c7f71080 00000418 c624fc50 c98ec464
[ 4691.991372] 00000000 00000286 c04d6706 c523d7c8 00000050 c04d6706 c7f71080 c828d7f0
[ 4691.999998] c7f71094 cc454dd4 c04d673f c065cfbc c624fc50 c624fc50 00000418 00000000
[ 4692.008729] Call Trace:
[ 4692.011397] [<c04a5513>] block_write_begin+0x90/0xf4
[ 4692.016556] [<c04c9779>] ext3_write_begin+0xda/0x19b
[ 4692.021750] [<c0464b5a>] pagecache_write_begin+0x4d/0x12f
[ 4692.027349] [<c04a1a35>] pipe_to_file+0xa0/0x15f
[ 4692.032148] [<c04a14af>] __splice_from_pipe+0x63/0x1d2
[ 4692.037459] [<c04a1660>] splice_from_pipe+0x42/0x58
[ 4692.042544] [<c04a1916>] generic_file_splice_write+0x8b/0x10a
[ 4692.048477] [<c04a1409>] do_splice_from+0xca/0xd6
[ 4692.053391] [<c04a2754>] sys_splice+0x108/0x22b
[ 4692.058119] [<c040420c>] syscall_call+0x7/0xb
[ 4692.062691] [<b7f53410>] 0xb7f53410
[ 4692.066398] =======================
[ 4692.070031] INFO: lockdep is turned off.
[ 4692.074038] Code: 2c 09 7e c0 e8 2f 6e 07 00 85 c0 74 04 0f 0b eb fe 31 d2 81 7d 08 00 10 00 00 0f 97 c2 b8 10 09 7e c0 e8 11 6e 07 00 85 c0 74 04 <0f> 0b eb fe 8b 55 08 39 55 b4 0f 97 c2 0f b6 d2 b8 f4 08 7e c0
[ 4692.094556] EIP: [<c04a510f>] __block_prepare_write+0x64/0x3a5 SS:ESP 0068:cc454d60

(gdb) l *__block_prepare_write+0x64
0xc10a510f is in __block_prepare_write (fs/buffer.c:1821).
1816 unsigned blocksize, bbits;
1817 struct buffer_head *bh, *head, *wait[2], **wait_bh=wait;
1818
1819 BUG_ON(!PageLocked(page));
1820 BUG_ON(from > PAGE_CACHE_SIZE);
1821 BUG_ON(to > PAGE_CACHE_SIZE);
1822 BUG_ON(from > to);
1823
1824 blocksize = 1 << inode->i_blkbits;
1825 if (!page_has_buffers(page))

http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.22-rc4-mm2/console.log
http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.22-rc4-mm2/mm-config

Regards,
Michal

--
"Najbardziej brakowało mi twojego milczenia."
-- Andrzej Sapkowski "Coś więcej"
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