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Date: Fri, 14 Oct 2011 10:08:26 +0200 From: Elmar Vonlanthen <evonlanthen@...il.com> To: linux-kernel@...r.kernel.org Subject: Re: PROBLEM: System call 'sendmsg' of process ospfd (quagga) causes kernel oops Hello again Kernel 3.0.6 is affected as well. 2011-10-14 09:50:46 chgut11fw01 kernel: skb_over_panic: text:c13059c9 len:64 put:64 head:c730c400 data:c730c450 tail:0xc730c490 end:0xc730c480 dev:<NULL> 2011-10-14 09:50:46 chgut11fw01 kernel: ------------[ cut here ]------------ 2011-10-14 09:50:46 chgut11fw01 kernel: kernel BUG at net/core/skbuff.c:128! 2011-10-14 09:50:46 chgut11fw01 kernel: invalid opcode: 0000 [#1] SMP 2011-10-14 09:50:46 chgut11fw01 kernel: Modules linked in: ip_gre gre authenc xfrm4_mode_transport deflate zlib_deflate ctr twofish_generic twofish_common serpent cryptd aes_i586 aes_generic blowfish cast5 cbc ecb rmd160 sha512_generic sha256_generic sha1_generic xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key tun ipt_LOG xt_limit ipt_REJECT xt_state ipt_REDIRECT ipt_MASQUERADE xt_policy xt_TCPMSS xt_tcpmss xt_tcpudp xt_NOTRACK iptable_filter iptable_nat xt_mark xt_connmark iptable_mangle iptable_raw ip_tables x_tables nf_conntrack_tftp nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack rtc ppdev parport_pc parport w83792d i2c_dev i2c_i801 i2c_core pl2303 usbserial coretemp hwmon usbhid ohci_hcd uhci_hcd ehci_hcd usbcore e1000 e1000e aufs ata_piix libata 2011-10-14 09:50:46 chgut11fw01 kernel: 2011-10-14 09:50:46 chgut11fw01 kernel: Pid: 6299, comm: ospfd Not tainted 3.0.6-SMP #1 /LakePort 2011-10-14 09:50:46 chgut11fw01 kernel: EIP: 0060:[<c12b6815>] EFLAGS: 00010292 CPU: 0 2011-10-14 09:50:46 chgut11fw01 kernel: EIP is at skb_put+0x85/0x90 2011-10-14 09:50:46 chgut11fw01 kernel: EAX: 00000078 EBX: c13059c9 ECX: 00000096 EDX: ffffff8b 2011-10-14 09:50:46 chgut11fw01 kernel: ESI: deac4a80 EDI: 00000040 EBP: d8979c80 ESP: d8979c58 2011-10-14 09:50:46 chgut11fw01 kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 2011-10-14 09:50:46 chgut11fw01 kernel: Process ospfd (pid: 6299, ti=d8978000 task=de94ee80 task.ti=d8978000) 2011-10-14 09:50:46 chgut11fw01 kernel: Stack: 2011-10-14 09:50:46 chgut11fw01 kernel: c13fd194 c13059c9 00000040 00000040 c730c400 c730c450 c730c490 c730c480 2011-10-14 09:50:46 chgut11fw01 kernel: c13fb21c d897da40 d8979d38 c13059c9 d8979d24 8db04700 00000001 00000001 2011-10-14 09:50:46 chgut11fw01 kernel: d8979ce4 d8979cc8 c121ce7d 00000000 000012b5 d8979ecc dbff0c00 c730c450 2011-10-14 09:50:46 chgut11fw01 kernel: Call Trace: 2011-10-14 09:50:46 chgut11fw01 kernel: [<c13059c9>] ? raw_sendmsg+0x5a9/0x850 2011-10-14 09:50:46 chgut11fw01 kernel: [<c13059c9>] raw_sendmsg+0x5a9/0x850 2011-10-14 09:50:46 chgut11fw01 kernel: [<c121ce7d>] ? extract_entropy+0x5d/0x70 2011-10-14 09:50:46 chgut11fw01 kernel: [<c1027f73>] ? try_to_wake_up+0x173/0x1f0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b2700>] ? release_sock+0xb0/0xd0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c130f222>] inet_sendmsg+0x42/0xa0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c1021407>] ? __wake_up_sync_key+0x47/0x60 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12afc07>] sock_sendmsg+0xa7/0xd0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b29f3>] ? sock_def_readable+0x33/0x60 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12afc07>] ? sock_sendmsg+0xa7/0xd0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b8e83>] ? verify_iovec+0x53/0xb0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b08e4>] __sys_sendmsg+0x2d4/0x2e0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12afc9e>] ? sockfd_lookup_light+0x1e/0x70 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b02fa>] ? sys_sendto+0xaa/0xe0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c102f928>] ? nsecs_to_jiffies+0x8/0x10 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12eaf11>] ? ip_setsockopt+0x41/0xa0 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b0a36>] sys_sendmsg+0x36/0x60 2011-10-14 09:50:46 chgut11fw01 kernel: [<c12b1669>] sys_socketcall+0xe9/0x280 2011-10-14 09:50:46 chgut11fw01 kernel: [<c133d8c5>] syscall_call+0x7/0xb 2011-10-14 09:50:46 chgut11fw01 kernel: [<c1330000>] ? packet_recvmsg+0x170/0x440 2011-10-14 09:50:46 chgut11fw01 kernel: Code: 00 00 89 4c 24 14 8b 88 a4 00 00 00 89 54 24 0c 89 4c 24 10 8b 40 50 89 5c 24 04 c7 04 24 94 d1 3f c1 89 44 24 08 e8 b4 4b 08 00 <0f> 0b eb fe b9 1c b2 3f c1 eb ae 55 89 e5 57 56 89 d6 53 89 c3 2011-10-14 09:50:46 chgut11fw01 kernel: EIP: [<c12b6815>] skb_put+0x85/0x90 SS:ESP 0068:d8979c58 2011-10-14 09:50:46 chgut11fw01 kernel: ---[ end trace ff341104610beeed ]--- This is the output of "decodecode": whiskey /usr/src/linux-3.0.6 # scripts/decodecode < oops.txt 2011-10-14 09:50:46 chgut11fw01 kernel: Code: 00 00 89 4c 24 14 8b 88 a4 00 00 00 89 54 24 0c 89 4c 24 10 8b 40 50 89 5c 24 04 c7 04 24 94 d1 3f c1 89 44 24 08 e8 b4 4b 08 00 <0f> 0b eb fe b9 1c b2 3f c1 eb ae 55 89 e5 57 56 89 d6 53 89 c3 All code ======== 0: 00 00 add %al,(%eax) 2: 89 4c 24 14 mov %ecx,0x14(%esp) 6: 8b 88 a4 00 00 00 mov 0xa4(%eax),%ecx c: 89 54 24 0c mov %edx,0xc(%esp) 10: 89 4c 24 10 mov %ecx,0x10(%esp) 14: 8b 40 50 mov 0x50(%eax),%eax 17: 89 5c 24 04 mov %ebx,0x4(%esp) 1b: c7 04 24 94 d1 3f c1 movl $0xc13fd194,(%esp) 22: 89 44 24 08 mov %eax,0x8(%esp) 26: e8 b4 4b 08 00 call 0x84bdf 2b:* 0f 0b ud2a <-- trapping instruction 2d: eb fe jmp 0x2d 2f: b9 1c b2 3f c1 mov $0xc13fb21c,%ecx 34: eb ae jmp 0xffffffe4 36: 55 push %ebp 37: 89 e5 mov %esp,%ebp 39: 57 push %edi 3a: 56 push %esi 3b: 89 d6 mov %edx,%esi 3d: 53 push %ebx 3e: 89 c3 mov %eax,%ebx Code starting with the faulting instruction =========================================== 0: 0f 0b ud2a 2: eb fe jmp 0x2 4: b9 1c b2 3f c1 mov $0xc13fb21c,%ecx 9: eb ae jmp 0xffffffb9 b: 55 push %ebp c: 89 e5 mov %esp,%ebp e: 57 push %edi f: 56 push %esi 10: 89 d6 mov %edx,%esi 12: 53 push %ebx 13: 89 c3 mov %eax,%ebx Could anyone give me a hint, how I can furher proceed to find the error? Thanks. Best regards Elmar -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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