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Date: Sat, 18 Oct 2008 10:41:02 +0400
From: "Alexander Beregalov" <a.beregalov@gmail.com>
To: "Davide Libenzi" <davidel@xmailserver.org>
Subject: Re: 2.6.27-05178-g2e532d6: list_add corruption
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       "Kernel Testers List" <kernel-testers@vger.kernel.org>,
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> This is very likely to be caused by a patch that went in a few days ago.> Already posted a fix to Andrew.>
Is it the same problem? 2.6.27-05577-g0cfd810
BUG eventpoll_epi: Poison overwritten-----------------------------------------------------------------------------INFO: 0xf2ac768c-0xf2ac7693. First byte 0xc instead of 0x6bINFO: Allocated in sys_epoll_ctl+0x120/0x405 age=21753 cpu=0 pid=1936INFO: Freed in ep_remove+0x7f/0x86 age=3964 cpu=0 pid=1936INFO: Slab 0xc16568e0 objects=32 used=29 fp=0xf2ac7680 flags=0x400000c3INFO: Object 0xf2ac7680 @offset=1664 fp=0xf2ac7f80
Bytes b4 0xf2ac7670:  5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5aZZZZZZZZZZZZZZZZ  Object 0xf2ac7680:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 0c 7d b1 f2kkkkkkkkkkkk.}╠Р  Object 0xf2ac7690:  0c 15 a7 f2 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b..╖Рkkkkkkkkkkkk  Object 0xf2ac76a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6bkkkkkkkkkkkkkkkk  Object 0xf2ac76b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6bkkkkkkkkkkkkkkkk  Object 0xf2ac76c0:  6b 6b 6b a5                                     kkk╔ Redzone 0xf2ac76c4:  bb bb bb bb                                     ╩╩╩╩ Padding 0xf2ac76ec:  5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5aZZZZZZZZZZZZZZZZ Padding 0xf2ac76fc:  5a 5a 5a 5a                                     ZZZZPid: 1936, comm: rtorrent Not tainted 2.6.27-05577-g0cfd810 #1Call Trace: [<c0161628>] print_trailer+0xe1/0xe9 [<c01616b1>] check_bytes_and_report+0x81/0xa4 [<c01617a9>] check_object+0xa5/0x160 [<c0162ceb>] __slab_alloc+0x420/0x4c7 [<c0138d45>] ? trace_hardirqs_on+0xb/0xd [<c01630d4>] kmem_cache_alloc+0x62/0xaf [<c0187485>] ? sys_epoll_ctl+0x120/0x405 [<c0187485>] ? sys_epoll_ctl+0x120/0x405 [<c0187485>] sys_epoll_ctl+0x120/0x405 [<c025d720>] ? trace_hardirqs_on_thunk+0xc/0x10 [<c0102ea9>] sysenter_do_call+0x12/0x35FIX eventpoll_epi: Restoring 0xf2ac768c-0xf2ac7693=0x6b
FIX eventpoll_epi: Marking all objects used????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m????????????I?