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Date: Fri, 10 Aug 2007 12:34:27 +0530 From: "md ayyaz" <md.ayyaz@...il.com> To: netdev@...r.kernel.org Subject: Fwd: bug in kernel 2.6.20.9 in ipv6 dest opt <help> ---------- Forwarded message ---------- From: md ayyaz <md.ayyaz@...il.com> Date: Aug 10, 2007 12:05 PM Subject: bug in kernel 2.6.20.9 in ipv6 dest opt <help> To: yoshfuji@...ux-ipv6.org Hi , i am working on mobile ipv6 protocol , so what happens whenver i pass a ipv6 packet with destination option in it , it doesnt parse it correctly in extension header parsing for dest option and hence returns -1 as an error back so packet gets dropped in ip layer , along with this if i send ipv6-ipv6 tunnel packet it shows slab corruption in logs ,( i had put some debug messages) please reply as soon as possible i will be greatly thankfull for the help Aug 1 16:18:12 localhost kernel: Recived IPv6 packet with next hdr as 17 from 3ffe:0300:0068:0218:f3ff:fed9:8914:f521600001 Aug 1 16:18:12 localhost kernel: packet Len : 173 nxt Hdr : 17 skb:213 Aug 1 16:18:13 localhost kernel: Recived IPv6 packet with next hdr as 17 from 3ffe:0300:0068:0218:f3ff:fed9:8914:f521600001 Aug 1 16:18:13 localhost kernel: packet Len : 173 nxt Hdr : 17 skb:213 Aug 1 16:18:14 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:14 localhost kernel: packet Len : 64 nxt Hdr : 58 skb:104 Aug 1 16:18:16 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:16 localhost kernel: packet Len : 24 nxt Hdr : 58 skb:64 Aug 1 16:18:18 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:18 localhost kernel: packet Len : 64 nxt Hdr : 58 skb:104 Aug 1 16:18:21 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:21 localhost kernel: packet Len : 32 nxt Hdr : 58 skb:72 Aug 1 16:18:24 localhost kernel: Recived IPv6 packet with next hdr as 41 from 3ffe:0300:0068:020c:29ff:fea2:b14c:f521600001 Aug 1 16:18:24 localhost kernel: packet Len : 140 nxt Hdr : 41 skb:180 Aug 1 16:18:24 localhost kernel: Slab corruption: start=f50b1dac, len=176 Aug 1 16:18:24 localhost kernel: Redzone: 0x5a2cf071/0x5a2cf071. Aug 1 16:18:24 localhost kernel: Last user: [<c055d930>](kfree_skbmem+0x63/0x66) Aug 1 16:18:24 localhost kernel: 090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b Aug 1 16:18:24 localhost kernel: Single bit error detected. Probably bad RAM. Aug 1 16:18:24 localhost kernel: Run memtest86+ or a similar memory test tool. Aug 1 16:18:24 localhost kernel: Prev obj: start=f50b1cf0, len=176 Aug 1 16:18:24 localhost kernel: Redzone: 0x170fc2a5/0x170fc2a5. Aug 1 16:18:24 localhost kernel: Last user: [<c055e041>](__alloc_skb+0x2c/0xfd) Aug 1 16:18:24 localhost kernel: 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Aug 1 16:18:24 localhost kernel: 010: 00 00 00 00 00 60 21 f5 00 00 00 00 00 00 00 00 Aug 1 16:18:24 localhost kernel: Next obj: start=f50b1e68, len=176 Aug 1 16:18:24 localhost kernel: Redzone: 0x170fc2a5/0x170fc2a5. Aug 1 16:18:24 localhost kernel: Last user: [<c055e041>](__alloc_skb+0x2c/0xfd) Aug 1 16:18:24 localhost kernel: 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Aug 1 16:18:24 localhost kernel: 010: 00 00 00 00 00 60 21 f5 00 00 00 00 00 00 00 00 Aug 1 16:18:26 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:26 localhost kernel: packet Len : 64 nxt Hdr : 58 skb:104 Aug 1 16:18:35 localhost kernel: Recived IPv6 packet with next hdr as 58 from fe80:0000:0000:0218:f3ff:feda:83cb:f521600001 Aug 1 16:18:35 localhost kernel: packet Len : 64 nxt Hdr : 58 skb:104 Aug 1 16:18:37 localhost kernel: Recived IPv6 packet with next hdr as 41 from 3ffe:0300:0068:020c:29ff:fea2:b14c:f521600001 Aug 1 16:18:37 localhost kernel: packet Len : 140 nxt Hdr : 41 skb:180 Aug 1 16:18:37 localhost kernel: Slab corruption: start=f50ba4dc, len=176 Aug 1 16:18:37 localhost kernel: Redzone: 0x5a2cf071/0x5a2cf071. Aug 1 16:18:37 localhost kernel: Last user: [<c055d930>](kfree_skbmem+0x63/0x66) Aug 1 16:18:37 localhost kernel: 090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b Aug 1 16:18:37 localhost kernel: Single bit error detected. Probably bad RAM. Aug 1 16:18:37 localhost kernel: Run memtest86+ or a similar memory test tool. Aug 1 16:18:37 localhost kernel: Prev obj: start=f50ba420, len=176 Aug 1 16:18:37 localhost kernel: Redzone: 0x170fc2a5/0x170fc2a5. Aug 1 16:18:37 localhost kernel: Last user: [<c055e041>](__alloc_skb+0x2c/0xfd) Aug 1 16:18:37 localhost kernel: 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Aug 1 16:18:37 localhost kernel: 010: 00 00 00 00 00 60 21 f5 00 00 00 00 00 00 00 00 Aug 1 16:18:37 localhost kernel: Next obj: start=f50ba598, len=176 Aug 1 16:18:37 localhost kernel: Redzone: 0x170fc2a5/0x170fc2a5. Aug 1 16:18:37 localhost kernel: Last user: [<c055e041>](__alloc_skb+0x2c/0xfd) Aug 1 16:18:37 localhost kernel: 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Aug 1 16:18:37 localhost kernel: 010: 00 00 00 00 00 00 f6 f7 00 00 00 00 00 00 00 00 - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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