Date: Sat, 22 Feb 2025 13:06:02 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: Mark Johnston <markj@freebsd.org> Cc: Current FreeBSD <freebsd-current@freebsd.org> Subject: Re: crash with head as of 2h ago (in_pcblbgroup_insert) Message-ID: <8dfe920e6d26603030744799102133a0@Leidinger.net> In-Reply-To: <Z7jwyon5tN_Sqsxc@nuc> References: <3d6c377f2567aaa2e0601a7c11c729d5@Leidinger.net> <Z7jwyon5tN_Sqsxc@nuc>
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[-- Attachment #1 --] Am 2025-02-21 22:31, schrieb Mark Johnston: > On Thu, Feb 20, 2025 at 10:27:28AM +0100, Alexander Leidinger wrote: >> Hi, >> >> I get this backtrace: >> ---snip--- >> [102] panic: invalid local group size 16 and count 16 >> [102] cpuid = 17 >> [102] time = 1740041984 >> [102] KDB: stack backtrace: >> [102] db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >> 0xfffffe07453a5b80 >> [102] vpanic() at vpanic+0x136/frame 0xfffffe07453a5cb0 >> [102] panic() at panic+0x43/frame 0xfffffe07453a5d10 >> [102] in_pcblbgroup_insert() at in_pcblbgroup_insert+0xaa/frame >> 0xfffffe07453a5d30 >> [102] in_pcblisten() at in_pcblisten+0x92/frame 0xfffffe07453a5d50 >> [102] tcp_usr_listen() at tcp_usr_listen+0x18a/frame >> 0xfffffe07453a5db0 >> [102] solisten() at solisten+0x47/frame 0xfffffe07453a5dd0 >> [102] kern_listen() at kern_listen+0x3f/frame 0xfffffe07453a5e00 >> [102] amd64_syscall() at amd64_syscall+0x15b/frame 0xfffffe07453a5f30 >> [102] fast_syscall_common() at fast_syscall_common+0xf8/frame >> 0xfffffe07453a5f30 >> ---snip--- >> >> This is with head updated at 2025-02-20-080119 CET. The previous world >> is >> from 1 month ago (2025-01-22-120655). > > I believe this would be fixed by https://reviews.freebsd.org/D49100 So I was just luck that this works ATM... or unlucky that I got a panic on the previous try. > Please note that I haven't tested it yet (currently running it through > the regression test suite to start). As the config and number of applications/jails/services started didn't change, any idea how to provoke this race condition on a system with some real applications (instead of test cases; if you need an independent validation)? A reboot loop until it happens is not really something I want to do on this system. Bye, Alexander. -- http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEER9UlYXp1PSd08nWXEg2wmwP42IYFAme5vbsACgkQEg2wmwP4 2IZkUw//V27vGlgLLBtnsmpwMh21GfUHAYI8OxRUcMFtVRczCdiLJxk5ZZ/71ARk AC6yK+G4S7SAKfoakgjoMS25Ltuhql9eVKJ9zVqo+W/9dOxGSuYZBOnIierB7LrU yJHg7fJXZIE+AG9L/KPD6U83Pr5ssygrl4gnNxqZw8vwxobMnNPFnqu6ct6g77nW vqWrVXa/8iDbnL/D5dw/7MJ/M1VF5PpswnNDne8VyzpmSRC6go5FSxxv2f+FtPWZ iPTCRYKHwgj1c6rHUyCH/uJrZXhA4OupNTUbBZo2+PhBP30N10uLuglHhClhPWnl 4TSyDjFtyXtJe/t1j2x+3BmwF3dXnI7xB+vIWrp289FasrACky+l2kLeOIZpKX5x 3Mlg7cqDjxuqpuZHym1Gas27le+Kqyc7RY07QHr3T7yggVpM5vRex3a9+cnpKYhR pNnYb5wwP2I3W+c/HtpVSECzrV1cF73IP2ljUjyFrib5SsZ3GLFZOQo5rQIDICjj xoLEgXN8ZR+967GlL2qz3tUgBewkCX4yuRpMQtTiYGZrcQbStmrqmXM2vFPVgQcK /ftL433eBSiwSo/NQQHRjIcKkYxnIu72OiAYOKUoDlxgO9hwJ4bPbHkHu1KiQmCi Ot/1QEOIRrB5QS8MNNgnz29SyTpc4bEwPIzCvK4X6B3IoS2J8KI= =sQ3i -----END PGP SIGNATURE-----help
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