Date: Wed, 27 Jul 2005 20:18:20 +0200 From: =?ISO-8859-1?Q?K=F6vesd=E1n_G=E1bor?= <gabor.kovesdan@t-hosting.hu> To: Maxime Henrion <mux@FreeBSD.org> Cc: freebsd-net@freebsd.org Subject: Re: NVE Message-ID: <42E7CFEC.5070106@t-hosting.hu> In-Reply-To: <20050727130805.GS14567@elvis.mu.org> References: <1273.193.201.61.166.1122452509.squirrel@mail.uct.ua> <42E81886.70907@t-hosting.hu> <20050727120902.GR14567@elvis.mu.org> <42E82F1A.3040704@t-hosting.hu> <20050727130805.GS14567@elvis.mu.org>
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Maxime Henrion wrote: >That's the plan. I'm actually waiting for feedback to know whether this >helps make things better or not. I'll ask re@ for permission to MFC it >once I know it's good (I have no nve(4) hardware myself). > > > Well... I had an another panic but it's a bit different from the previous panics I've got with nve (http://www.freebsd.org/cgi/query-pr.cgi?pr=83943),but it is quite similar to an another panic I've recently had on RELENG_6. (http://www.freebsd.org/cgi/query-pr.cgi?pr=84133) I took a piece of paper again and wrote down the trace output: panic: nve_ifstart: attempted use of a free mbuf! KDB: enter: panic [ thread pid 555 tid 100068 ] Stopped at kdb_enter+0x2f:nop db> trace Tracing pid 555 tid 100068 td 0xffffff001ed2ea00 kdb_enter() at kdb_enter+0x2f panic() at panic+0x1d2 nve_ifstart() at nve_ifstart+0x3a5 ether_output_frame() at ether_output_frame+0x249 ether_output() at ether_output+0x349 ip_output() at ip_output+0xb17 tcp_output() at tcp_output+0x9c2 tcp_usr_rcvd() at tcp_usr_rcvd+0x70 soreceive() at soreceive+0x1009 soo_read() at soo_read+0xc0 dofileread() at dofileread+0x94 kern_readv() at kern_readv+0x60 read() at read+0x4a syscall() at syscall+0x4b2 Xfast_syscall() at Xfast_syscall+0xa8 --- syscall (3, FreeBSD ELF64, read), rip = 0x80095d84c, rsp = 0x6d5530, rbp = 0x6d55b8 --- Look at the second PR I mentioned. It is a general protection fault, but the trace output is quite similar. They must be in relation. Cheers, Gábor Kövesdán
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