From: Andrea Arcangeli <andrea@suse.de>
To: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@osdl.org>,
vrajesh@umich.edu, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [RFC][PATCH 1/3] radix priority search tree - objrmap complexity fix
Date: Thu, 1 Apr 2004 15:35:55 +0200 [thread overview]
Message-ID: <20040401133555.GC18585@dualathlon.random> (raw)
In-Reply-To: <Pine.LNX.4.44.0404010549540.28566-100000@localhost.localdomain>
Let's forget the "should we allow people to use rw_swap_page_sync to
swapout/swapin anonymous pages" discussion, there's a major issue that
my latest patch still doesn't work:
Writing data to swap (5354 pages): .<1>Unable to handle kernel NULL pointer dereference at virtual address 00000004
printing eip:
c01d9b34
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c01d9b34>] Not tainted
EFLAGS: 00010082 (2.6.4-41.8-default)
EIP is at radix_tree_delete+0x14/0x160
eax: 00000004 ebx: c10361c0 ecx: 00000016 edx: 000023ee
esi: 000023ee edi: 00000000 ebp: 000000d0 esp: cdee5e1c
ds: 007b es: 007b ss: 0068
Process bash (pid: 1, threadinfo=cdee4000 task=cdf9d7b0)
Stack: 00000000 f7b0d200 00000004 00000016 c041d440 c03ffe2e c0108d48 c041d440
00000000 000003fd 000026b6 c041d440 c03ffe2e 00000320 0000007b ffff007b
ffffff00 c021a39e 00000060 c10361c0 c0341d20 00000056 00000056 00000056
Call Trace:
[<c0108d48>] common_interrupt+0x18/0x20
[<c021a39e>] serial_in+0x1e/0x40
[<c014fc3c>] swap_free+0x1c/0x30
[<c0151597>] remove_exclusive_swap_page+0x97/0x155
[<c013bc1f>] __remove_from_page_cache+0x3f/0xa0
[<c013bc9b>] remove_from_page_cache+0x1b/0x27
[<c014eb59>] rw_swap_page_sync+0xa9/0x1d0
[<c013588d>] do_magic_suspend_2+0x27d/0x7d0
[<c0275c2d>] do_magic+0x4d/0x130
[<c0135310>] software_suspend+0xd0/0xe0
[<c01fad86>] acpi_system_write_sleep+0xb5/0xd2
[<c01facd1>] acpi_system_write_sleep+0x0/0xd2
[<c0153e4e>] vfs_write+0xae/0xf0
[<c0153f2c>] sys_write+0x2c/0x50
[<c0107dc9>] sysenter_past_esp+0x52/0x79
Code: 8b 28 8d 7c 24 10 3b 14 ad 00 99 41 c0 0f 87 18 01 00 00 8d
<0>Kernel panic: Attempted to kill init!
Pavel told me a SMP kernel cannot suspend, that's probably why I
couldn't reproduce, I'll recompile UP and hopefully I will be able to
reproduce, so I can debug it, and I can try latest Andrew's patch too
(the one allowing anonymous memory swapin/swapouts too).
--
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next prev parent reply other threads:[~2004-04-01 13:35 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.44.0403150527400.28579-100000@localhost.localdomain>
2004-03-21 22:10 ` Rajesh Venkatasubramanian
2004-03-21 22:12 ` [RFC][PATCH 2/3] Dave & Hugh's objrmap patch Rajesh Venkatasubramanian
2004-03-21 22:13 ` [RFC][PATCH 3/3] Covert objrmap to use prio_tree Rajesh Venkatasubramanian
2004-03-21 22:26 ` URL typo Rajesh Venkatasubramanian
2004-03-22 0:46 ` [RFC][PATCH 1/3] radix priority search tree - objrmap complexity fix Andrea Arcangeli
2004-03-22 2:32 ` Rik van Riel
2004-03-22 3:49 ` Rajesh Venkatasubramanian
2004-03-22 4:02 ` Rik van Riel
2004-03-25 22:59 ` Andrea Arcangeli
2004-03-26 4:06 ` Rajesh Venkatasubramanian
2004-03-26 7:53 ` Andrea Arcangeli
2004-03-26 15:43 ` Rajesh Venkatasubramanian
2004-03-26 17:58 ` Andrea Arcangeli
2004-03-27 19:51 ` Rajesh Venkatasubramanian
2004-03-29 17:22 ` Andrea Arcangeli
2004-03-29 17:50 ` Rajesh Venkatasubramanian
2004-03-29 18:01 ` Andrea Arcangeli
2004-03-29 20:40 ` Andrew Morton
2004-03-29 22:24 ` Hugh Dickins
2004-03-29 22:54 ` Andrea Arcangeli
2004-03-29 23:08 ` William Lee Irwin III
2004-03-29 22:39 ` Andrea Arcangeli
2004-03-29 22:42 ` Andrew Morton
2004-03-31 15:07 ` Andrea Arcangeli
2004-03-31 15:26 ` Andrea Arcangeli
2004-03-31 16:45 ` Hugh Dickins
2004-03-31 17:28 ` Andrea Arcangeli
2004-04-01 0:45 ` Andrea Arcangeli
2004-04-01 1:22 ` Andrew Morton
2004-04-01 1:26 ` Andrea Arcangeli
2004-04-01 1:51 ` Andrew Morton
2004-04-01 2:01 ` Andrea Arcangeli
2004-04-01 5:05 ` Hugh Dickins
2004-04-01 13:35 ` Andrea Arcangeli [this message]
2004-04-01 15:09 ` Andrea Arcangeli
2004-04-01 15:15 ` Andrea Arcangeli
2004-04-02 0:15 ` Andrea Arcangeli
2004-04-02 0:52 ` Andrew Morton
2004-04-02 1:06 ` Andrea Arcangeli
2004-04-02 1:03 ` Hugh Dickins
2004-04-02 1:16 ` Andrea Arcangeli
2004-04-02 1:36 ` Andrew Morton
2004-04-02 2:00 ` Andrea Arcangeli
2004-04-02 2:08 ` Andrew Morton
2004-04-02 2:22 ` Andrea Arcangeli
2004-04-02 6:05 ` Christoph Hellwig
2004-04-02 7:07 ` Paul Mackerras
2004-04-02 7:11 ` Christoph Hellwig
2004-04-02 15:28 ` Andrea Arcangeli
2004-04-02 15:22 ` Andrea Arcangeli
2004-04-02 15:27 ` Christoph Hellwig
2004-04-02 15:38 ` Andrea Arcangeli
2004-04-02 15:45 ` Andrea Arcangeli
2004-04-02 9:43 ` Christoph Hellwig
2004-04-02 10:21 ` Marc-Christian Petersen
2004-04-02 10:55 ` Hugh Dickins
2004-04-02 16:46 ` Andrea Arcangeli
2004-04-02 18:59 ` Christoph Hellwig
2004-04-02 19:29 ` Andrea Arcangeli
2004-04-02 19:54 ` Christoph Hellwig
2004-04-02 20:35 ` Andrea Arcangeli
2004-04-03 8:40 ` Christoph Hellwig
2004-04-03 15:20 ` Andrea Arcangeli
2004-04-03 15:59 ` Andrea Arcangeli
2004-04-03 17:02 ` Andrea Arcangeli
2004-04-05 9:59 ` Christoph Hellwig
2004-04-05 12:11 ` Christoph Hellwig
2004-04-05 16:08 ` Andrea Arcangeli
2004-04-06 4:22 ` Andrea Arcangeli
2004-04-06 4:43 ` Andrew Morton
2004-04-06 5:14 ` Christoph Hellwig
2004-04-06 21:54 ` Andrea Arcangeli
2004-04-07 1:39 ` Nathan Scott
2004-04-06 5:16 ` Christoph Hellwig
2004-04-06 16:01 ` Andrea Arcangeli
2004-04-07 1:33 ` Nathan Scott
2004-04-03 17:40 ` Andrea Arcangeli
2004-04-03 20:02 ` Andrew Morton
2004-04-03 23:27 ` Andrea Arcangeli
2004-04-03 23:46 ` Andrew Morton
2004-04-04 0:40 ` Andrea Arcangeli
2004-04-02 20:13 ` Pavel Machek
2004-04-02 21:42 ` Andrea Arcangeli
2004-04-02 21:45 ` Pavel Machek
2004-04-02 21:49 ` Andrea Arcangeli
2004-03-29 18:12 ` Hugh Dickins
2004-03-29 18:20 ` Andrea Arcangeli
2004-03-29 18:38 ` Christoph Hellwig
2004-04-05 3:14 ` Rajesh Venkatasubramanian
2004-04-05 4:42 ` Andrea Arcangeli
2004-03-26 12:26 ` William Lee Irwin III
2004-03-26 19:18 ` Andrea Arcangeli
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