Date: Thu, 13 Nov 2003 05:30:04 +0900 From: Hajimu UMEMOTO <ume@mahoroba.org> To: Andre Oppermann <oppermann@pipeline.ch> Cc: sam@errno.com Subject: Re: tcp hostcache and ip fastforward for review Message-ID: <yge8ymlba9f.wl%ume@mahoroba.org> In-Reply-To: <3FB2503E.53B21470@pipeline.ch> References: <3FAE68FB.64D262FF@pipeline.ch> <ygey8um974u.wl%ume@mahoroba.org> <3FB129E1.5D8F4D16@pipeline.ch> <ygellqmekws.wl%ume@mahoroba.org> <3FB2503E.53B21470@pipeline.ch>
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Hi, >>>>> On Wed, 12 Nov 2003 16:22:38 +0100 >>>>> Andre Oppermann <oppermann@pipeline.ch> said: oppermann> Ok, I found the bug. It was in the ipv6 hash function where I made oppermann> a mistake with the hashmask. oppermann> The updated patch is here: oppermann> http://www.nrg4u.com/freebsd/tcphostcache+ipfastforward-20031112.patch oppermann> Could you try again please? It does repeatable panic. Unfortunately, my laptop hanguped during dumping core, and I couldn't get core. So, I copied the output from ddb by hand. Fatal trap 12: page fault while in kernel mode fault virtual address = 0x1c fault code = supervisor read, page not present instruction pointer = 0x8:0xc05b68c5 stack pointer = 0x10:0xd208ea28 frame pointer = 0x10:0xd208ea64 code segment = base 0x0, limit 0xffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 27 (swi1: net) kernel: type 12 trap, code=0 Stopped at in6_selecthlim+0x35: cmpl $0,0x1c(%esi) db> trace in6_selecthlim(0,0,28,0,fadd8ac9) at in6_selecthlim+0x35 syncache_respond(c3f6f000,c19a0600,1,c19a0600,0) at syncache_respond+0x31c syncache_add(d208eb80,d208ebf4,c1fc4836,d208eb4c,c19a0600) at syncache_add+0x4f4 tcp_input(c19a0600,28,0,d208ec40,6) at tcp_input+0xdae tcp6_input(d208ec84,d208ec60,6,d208ec84,28) at tcp6_input+0xf5 ip6_input(c19a0600,d018930f,39d40a1e,c0724474,0) at ip6_input+0xc18 netisr_processqueue(c06f0484,aa,7b1c1ccb,351110b4,c050250d) at netisr_processqueue+0xd9 swi_net(0,0,0,0,c199254c) at swi_net+0xd9 ithread_loop(c1988580,d208ed48,4d,55ff44fd,0) at ithread_loop+0x1d8 fork_exit(c04e4d90,c1988580,d208ed48) at fork_exit+0x80 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xd208ed7c, ebp = 0 --- db> Sincerely, -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org http://www.imasy.org/~ume/
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