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Date: Thu, 22 Feb 2007 07:56:27 -0800 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [Bugme-new] [Bug 8057] New: slab corruption running ip6sic http://bugzilla.kernel.org/show_bug.cgi?id=8057 Summary: slab corruption running ip6sic Kernel Version: 2.6.21-rc1 Status: NEW Severity: normal Owner: [EMAIL PROTECTED] Submitter: [EMAIL PROTECTED] Most recent kernel where this bug did *NOT* occur: unknown Distribution: gentoo Hardware Environment: AMD-K6, 400MHz, 288MB Ram Software Environment: ip6sic (http://ip6sic.sourceforge.net/) Problem Description: When running ip6sic against the loopback interface i get the following kernel messages: [ 199.514486] Slab corruption: start=d0505554, len=156 [ 199.514704] Redzone: 0x5a2cf071/0x5a2cf071. [ 199.514859] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 199.515301] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 199.517096] Single bit error detected. Probably bad RAM. [ 199.517255] Run memtest86+ or a similar memory test tool. [ 199.517413] Prev obj: start=d05054ac, len=156 [ 199.517568] Redzone: 0x170fc2a5/0x170fc2a5. [ 199.517719] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 199.518088] 000: b4 52 50 d0 0c 52 50 d0 08 c6 4a d0 00 00 00 00 [ 199.519851] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e0 a6 85 d0 [ 199.521614] Next obj: start=d05055fc, len=156 [ 199.521771] Redzone: 0x170fc2a5/0x170fc2a5. [ 199.521922] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 199.522327] 000: 04 54 [ 199.868486] Slab corruption: start=d0505554, len=156 [ 199.869836] Redzone: 0x5a2cf071/0x5a2cf071. [ 199.870975] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 199.872820] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 199.879166] Single bit error detected. Probably bad RAM. [ 199.880347] Run memtest86+ or a similar memory test tool. [ 199.881539] Prev obj: start=d05054ac, len=156 [ 199.882679] Redzone: 0x170fc2a5/0x170fc2a5. [ 199.883983] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 199.885807] 000: b4 52 50 d0 0c 52 50 d0 08 c6 4a d0 00 00 00 00 [ 199.892047] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e0 a6 85 d0 [ 199.898369] Next obj: start=d05055fc, len=156 [ 199.899511] Redzone: 0x170fc2a5/0x170fc2a5. [ 199.900642] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 199.902471] 000: 04 54 50 d0 b4 52 50 d0 08 c6 4a d0 00 00 00 00 [ 199.908818] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a ec a8 85 d0 [ 200.947125] Slab corruption: start=d0505554, len=156 [ 200.948445] Redzone: 0x5a2cf071/0x5a2cf071. [ 200.949578] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 200.951417] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 200.957775] Single bit error detected. Probably bad RAM. [ 200.958960] Run memtest86+ or a similar memory test tool. [ 200.960155] Prev obj: start=d05054ac, len=156 [ 200.961299] Redzone: 0x170fc2a5/0x170fc2a5. [ 200.962429] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 200.964342] 000: b4 52 50 d0 0c 52 50 d0 08 c6 4a d0 00 00 00 00 [ 200.970601] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e0 a6 85 d0 [ 200.976934] Next obj: start=d05055fc, len=156 [ 200.978074] Redzone: 0x170fc2a5/0x170fc2a5. [ 200.979200] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 200.981021] 000: 04 54 50 d0 b4 52 50 d0 08 c6 4a d0 00 00 00 00 [ 200.987374] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a ec a8 85 d0 I compiled the kernel with network debugging, rebooted and startet ip6sic again: [ 141.573883] Slab corruption: start=d1a30b1c, len=156 [ 141.575258] Redzone: 0x5a2cf071/0x5a2cf071. [ 141.576277] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 141.577909] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 141.583277] Single bit error detected. Probably bad RAM. [ 141.584321] Run memtest86+ or a similar memory test tool. [ 141.585442] Prev obj: start=d1a30a74, len=156 [ 141.586452] Redzone: 0x170fc2a5/0x170fc2a5. [ 141.587453] Last user: [<c04660cc>](__alloc_skb+0x2c/0x120) [ 141.589059] 000: cc 09 a3 d1 fc fa a2 d1 00 00 00 00 00 00 00 00 [ 141.594442] 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 141.600358] Next obj: start=d1a30bc4, len=156 [ 141.601416] Redzone: 0x170fc2a5/0x170fc2a5. [ 141.602420] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 141.604032] 000: 6c 0c a3 d1 34 05 a3 d1 40 6e 48 d0 00 00 00 00 [ 141.609495] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e4 7d 24 d1 [ 141.861710] Slab corruption: start=d1a30b1c, len=156 [ 141.862832] Redzone: 0x5a2cf071/0x5a2cf071. [ 141.863844] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 141.865522] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 141.870941] Single bit error detected. Probably bad RAM. [ 141.871993] Run memtest86+ or a similar memory test tool. [ 141.873052] Prev obj: start=d1a30a74, len=156 [ 141.874068] Redzone: 0x170fc2a5/0x170fc2a5. [ 141.875143] Last user: [<c04660cc>](__alloc_skb+0x2c/0x120) [ 141.876758] 000: cc 09 a3 d1 fc fa a2 d1 00 00 00 00 00 00 00 00 [ 141.882185] 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 141.887653] Next obj: start=d1a30bc4, len=156 [ 141.888668] Redzone: 0x170fc2a5/0x170fc2a5. [ 141.889671] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 141.891274] 000: 6c 0c a3 d1 34 05 a3 d1 40 6e 48 d0 00 00 00 00 [ 141.896735] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e4 7d 24 d1 [ 142.160467] Slab corruption: start=d1a30b1c, len=156 [ 142.161618] Redzone: 0x5a2cf071/0x5a2cf071. [ 142.162627] Last user: [<c0465813>](kfree_skbmem+0x33/0x80) [ 142.164243] 080: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b [ 142.169686] Single bit error detected. Probably bad RAM. [ 142.170729] Run memtest86+ or a similar memory test tool. [ 142.171784] Prev obj: start=d1a30a74, len=156 [ 142.172796] Redzone: 0x170fc2a5/0x170fc2a5. [ 142.173798] Last user: [<c04660cc>](__alloc_skb+0x2c/0x120) [ 142.175463] 000: cc 09 a3 d1 fc fa a2 d1 00 00 00 00 00 00 00 00 [ 142.180869] 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 142.186327] Next obj: start=d1a30bc4, len=156 [ 142.187343] Redzone: 0x170fc2a5/0x170fc2a5. [ 142.188349] Last user: [<c0465634>](skb_clone+0x34/0x1e0) [ 142.189952] 000: 6c 0c a3 d1 34 05 a3 d1 40 6e 48 d0 00 00 00 00 [ 142.195522] 010: 00 00 00 00 00 00 00 00 5a 5a 5a 5a e4 7d 24 d1 I ran memtester (userspace memtest) which gave no errors, so i did a memtest86+, the first 1 1/2 passes gave no errors, but I'll keep it running for a few more hours. Steps to reproduce: ip6sic -i lo -d ::1 -p 1000 In case there are some config options or patches i should try, just say so. I'll attach a .config in a few hours, but I guess I should let memtest86+ run for a few more passes. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
