Date: Wed, 03 Jun 2020 21:15:39 +0100 From: Alexander V. Chernikov <melifaro@ipfw.ru> To: Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net>, FreeBSD Net <net@freebsd.org> Subject: Re: panic: starting DAD on non-tentative address 0xfffff800034a5800, Message-ID: <354051591215122@mail.yandex.ru> In-Reply-To: <EA6F6688-66A1-48D7-A2C7-7EB01E37C844@lists.zabbadoz.net> References: <EA6F6688-66A1-48D7-A2C7-7EB01E37C844@lists.zabbadoz.net>
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03.06.2020, 11:46, "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>: > Hi, > > got this with HEAD from a few days ago, just in case it rings a bell > with someone. I'm curious what are the conditions. Was it the first "up" for the interface? It looks like we're not locking anything in nd6_dad_timer, so potentially if one configures IPv6 address, waits for most of the dad timer, then do down/up, this can potentially happen. > Otherwise I’ll go investigate when it happens again; I’ll try to > setup netdump to get more information. > > panic: starting DAD on non-tentative address 0xfffff800034a5800 > cpuid = 1 > time = 1500939739 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > 0xfffffe003b65a690 > vpanic() at vpanic+0x182/frame 0xfffffe003b65a6e0 > panic() at panic+0x43/frame 0xfffffe003b65a740 > nd6_dad_start() at nd6_dad_start+0x3bb/frame 0xfffffe003b65a7e0 > in6_if_up() at in6_if_up+0x62/frame 0xfffffe003b65a820 > if_up() at if_up+0x69/frame 0xfffffe003b65a850 > ifhwioctl() at ifhwioctl+0xbf8/frame 0xfffffe003b65a8d0 > ifioctl() at ifioctl+0x3ac/frame 0xfffffe003b65a9a0 > kern_ioctl() at kern_ioctl+0x27b/frame 0xfffffe003b65aa00 > sys_ioctl() at sys_ioctl+0x127/frame 0xfffffe003b65aad0 > amd64_syscall() at amd64_syscall+0x140/frame 0xfffffe003b65abf0 > fast_syscall_common() at fast_syscall_common+0x101/frame > 0xfffffe003b65abf0 > --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x80047cd8a, rsp = > 0x7fffffffe258, rbp = 0x7fffffffe2b0 --- > KDB: enter: panic > [ thread pid 12247 tid 100088 ] > Stopped at kdb_enter+0x37: movq $0,0x10c9ad6(%rip) > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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