Date: Tue, 29 Nov 2005 19:47:28 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Robert Watson <rwatson@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern uipc_socket.c Message-ID: <20051129194417.R23990@maildrop.int.zabbadoz.net> In-Reply-To: <200511281809.jASI93Rl006494@repoman.freebsd.org> References: <200511281809.jASI93Rl006494@repoman.freebsd.org>
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On Mon, 28 Nov 2005, Robert Watson wrote: > rwatson 2005-11-28 18:09:03 UTC > > FreeBSD src repository > > Modified files: > sys/kern uipc_socket.c > Log: > Break out functionality in sosend() responsible for building mbuf > chains and copying in mbufs from the body of the send logic, creating > a new function sosend_copyin(). This changes makes sosend() almost > readable, and will allow the same logic to be used by tailored socket > send routines. > > MFC after: 1 month > Reviewed by: andre, glebius > > Revision Changes Path > 1.253 +170 -141 src/sys/kern/uipc_socket.c there seems to be some locking problem. I can easily reproduce that with a dmesg of a bootverbose boot on a ssh connection: System call write returning with the following locks held: exclusive sleep mutex so_snd r = 0 (0xffffff0094a78670) locked @ /local/building/freebsd/HEAD/sys/kern/uipc_socket.c:884 panic: witness_warn KDB: enter: panic [thread pid 523 tid 100061 ] Stopped at kdb_enter+0x31: leave -- Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
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