From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 16 Sep 2001 17:47:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 16 Sep 2001 17:47:38 -0400 Received: from B03c8.pppool.de ([213.7.3.200]:5900 "EHLO bilbo.local") by vger.kernel.org with ESMTP id ; Sun, 16 Sep 2001 17:47:22 -0400 Date: Sun, 16 Sep 2001 18:53:09 +0200 From: Walter Hofmann To: linux-kernel@vger.kernel.org Cc: Alan Cox Subject: Re: oops with 2.2.19 in get_empty_inode Message-ID: <20010916185309.A2835@aragorn> In-Reply-To: <20010916160017.A16225@aragorn> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20010916160017.A16225@aragorn> User-Agent: Mutt/1.3.20i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I just tried 2.2.20pre10. The good news is that it doesn't oops anymore. The bad news is that Cerberus now reports memory errors. However, the memory errors don't look like a bad DIMM: I got five reports so far, and in every case four consecutive bytes of user space memory were overwritten with what looked like a kernel address: c0325048, d8e988df, c0325710, dc2abf88 and d8e9df88 According to System.map, c0324de0 is all_requests c03269e0 is ro_bits I attached the full report. Walter Ceiling: 379904K Attempting: 379904K Testing: 97255424 integers, 379904K Testing block_size 16384 (64K), alignment 0, with larry...Verifying...Done. [...] Testing block_size 19451084 (75980K), alignment 3, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 0, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 1, with larry...Verifying...Error at offset 25206248 of 38902168, alignment 1: Local process address: 0x461677a9 Failure Context: offset expected got 25206245 ac2b488f ac2b488f 25206246 ac2b4890 ac2b4890 25206247 ac2b4891 ac2b4891 25206248 ac2b4892 482b4892 *** fail location 25206249 ac2b4893 acc03250 25206250 ac2b4894 ac2b4894 25206251 ac2b4895 ac2b4895 25206252 ac2b4896 ac2b4896 25206253 ac2b4897 ac2b4897 25206254 ac2b4898 ac2b4898 Scanning /proc/kcore. Fire in the hole! Possible location of memory failure: 0x82d77a9 (130M) on page 33495 1941 795 fail_page_offset System RAM fault likely. Son Sep 16 16:57:29 CEST 2001: MEMORY FAILED: on 2/0 after 41s Ceiling: 379904K Attempting: 379904K Testing: 97255424 integers, 379904K Testing block_size 16384 (64K), alignment 0, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 1, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 2, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 3, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 0, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 1, with larry...Verifying...Done. [...] Ceiling: 379904K Attempting: 379904K Testing: 97255424 integers, 379904K Testing block_size 16384 (64K), alignment 0, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 1, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 2, with larry...Verifying...Done. Testing block_size 16384 (64K), alignment 3, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 0, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 1, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 2, with larry...Verifying...Done. Testing block_size 32768 (128K), alignment 3, with larry...Verifying...Done. Testing block_size 49152 (192K), alignment 0, with larry...Verifying...Done. Testing block_size 49152 (192K), alignment 1, with larry...Verifying...Done. Testing block_size 49152 (192K), alignment 2, with larry...Verifying...Done. Testing block_size 49152 (192K), alignment 3, with larry...Verifying...Done. Testing block_size 65536 (256K), alignment 0, with larry...Verifying...Done. Testing block_size 65536 (256K), alignment 1, with larry...Verifying...Done. Testing block_size 65536 (256K), alignment 2, with larry...Verifying...Done. Testing block_size 65536 (256K), alignment 3, with larry...Verifying...Done. Testing block_size 81920 (320K), alignment 0, with larry...Verifying...Done. Testing block_size 81920 (320K), alignment 1, with larry...Verifying...Done. Testing block_size 81920 (320K), alignment 2, with larry...Verifying...Done. Testing block_size 81920 (320K), alignment 3, with larry...Verifying...Done. Testing block_size 98304 (384K), alignment 0, with larry...Verifying...Done. Testing block_size 98304 (384K), alignment 1, with larry...Verifying...Done. Testing block_size 98304 (384K), alignment 2, with larry...Verifying...Done. Testing block_size 98304 (384K), alignment 3, with larry...Verifying...Done. Testing block_size 114688 (448K), alignment 0, with larry...Verifying...Done. Testing block_size 114688 (448K), alignment 1, with larry...Verifying...Done. Testing block_size 114688 (448K), alignment 2, with larry...Verifying...Done. Testing block_size 114688 (448K), alignment 3, with larry...Verifying...Done. Testing block_size 131072 (512K), alignment 0, with larry...Verifying...Done. Testing block_size 131072 (512K), alignment 1, with larry...Verifying...Done. Testing block_size 131072 (512K), alignment 2, with larry...Verifying...Done. Testing block_size 131072 (512K), alignment 3, with larry...Verifying...Done. Testing block_size 147456 (576K), alignment 0, with larry...Verifying...Done. Testing block_size 147456 (576K), alignment 1, with larry...Verifying...Done. Testing block_size 147456 (576K), alignment 2, with larry...Verifying...Done. Testing block_size 147456 (576K), alignment 3, with larry...Verifying...Done. Testing block_size 19451084 (75980K), alignment 0, with larry...Verifying...Done. Testing block_size 19451084 (75980K), alignment 1, with larry...Verifying...Done. Testing block_size 19451084 (75980K), alignment 2, with larry...Verifying...Done. Testing block_size 19451084 (75980K), alignment 3, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 0, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 1, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 2, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 3, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 0, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 1, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 2, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 3, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 0, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 1, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 2, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 3, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 0, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 1, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 2, with larry...Verifying...Error at offset 28510766 of 97255423, alignment 2: Local process address: 0x46e028c2 Failure Context: offset expected got 28510763 ac5db4d5 ac5db4d5 28510764 ac5db4d6 ac5db4d6 28510765 ac5db4d7 ac5db4d7 28510766 ac5db4d8 df88b4d8 *** fail location 28510767 ac5db4d9 ac5dd8e9 28510768 ac5db4da ac5db4da 28510769 ac5db4db ac5db4db 28510770 ac5db4dc ac5db4dc 28510771 ac5db4dd ac5db4dd 28510772 ac5db4de ac5db4de Scanning /proc/kcore. Fire in the hole! Possible location of memory failure: 0x831e8c2 (131M) on page 33566 2222 8ae fail_page_offset System RAM fault likely. Son Sep 16 17:36:31 CEST 2001: MEMORY FAILED: on 60/0 after 39m43s [...] Testing block_size 19451084 (75980K), alignment 2, with larry...Verifying...Done. Testing block_size 19451084 (75980K), alignment 3, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 0, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 1, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 2, with larry...Verifying...Done. Testing block_size 38902169 (151961K), alignment 3, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 0, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 1, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 2, with larry...Verifying...Done. Testing block_size 58353254 (227942K), alignment 3, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 0, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 1, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 2, with larry...Verifying...Done. Testing block_size 77804339 (303923K), alignment 3, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 0, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 1, with larry...Verifying...Error at offset 44100072 of 97255423, alignment 1: Local process address: 0x4a97a7a9 Failure Context: offset expected got 44100069 ad4b948f ad4b948f 44100070 ad4b9490 ad4b9490 44100071 ad4b9491 ad4b9491 44100072 ad4b9492 104b9492 *** fail location 44100073 ad4b9493 adc03257 44100074 ad4b9494 ad4b9494 44100075 ad4b9495 ad4b9495 44100076 ad4b9496 ad4b9496 44100077 ad4b9497 ad4b9497 44100078 ad4b9498 ad4b9498 Scanning /proc/kcore. Fire in the hole! Possible location of memory failure: 0x92d77a9 (146M) on page 37591 1941 795 fail_page_offset System RAM fault likely. Son Sep 16 17:53:55 CEST 2001: MEMORY FAILED: on 79/0 after 57m7s [...] Testing block_size 97255424 (379904K), alignment 2, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 3, with larry...Verifying...Error at offset 51442222 of 97255423, alignment 3: Local process address: 0x4c57c8c3 Failure Context: offset expected got 51442219 adbb9cd5 adbb9cd5 51442220 adbb9cd6 adbb9cd6 51442221 adbb9cd7 adbb9cd7 51442222 adbb9cd8 2abf88d8 *** fail location 51442223 adbb9cd9 adbb9cdc 51442224 adbb9cda adbb9cda 51442225 adbb9cdb adbb9cdb 51442226 adbb9cdc adbb9cdc 51442227 adbb9cdd adbb9cdd 51442228 adbb9cde adbb9cde Scanning /proc/kcore. Fire in the hole! Possible location of memory failure: 0x831e8c3 (131M) on page 33566 2223 8af fail_page_offset System RAM fault likely. Son Sep 16 18:31:19 CEST 2001: MEMORY FAILED: on 124/0 after 1h34m31s [...] Testing block_size 97255424 (379904K), alignment 1, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 2, with larry...Verifying...Done. Testing block_size 97255424 (379904K), alignment 3, with larry...Verifying...Error at offset 55970350 of 97255423, alignment 3: Local process address: 0x4d6c28c3 Failure Context: offset expected got 55970347 ae00b4d5 ae00b4d5 55970348 ae00b4d6 ae00b4d6 55970349 ae00b4d7 ae00b4d7 55970350 ae00b4d8 e9df88d8 *** fail location 55970351 ae00b4d9 ae00b4d8 55970352 ae00b4da ae00b4da 55970353 ae00b4db ae00b4db 55970354 ae00b4dc ae00b4dc 55970355 ae00b4dd ae00b4dd 55970356 ae00b4de ae00b4de Scanning /proc/kcore. Fire in the hole! Possible location of memory failure: 0x831e8c3 (131M) on page 33566 2223 8af fail_page_offset System RAM fault likely. Son Sep 16 18:39:49 CEST 2001: MEMORY FAILED: on 135/0 after 1h43m1s