Date: Thu, 1 Oct 2009 15:17:53 +0400 From: pluknet <pluknet@gmail.com> To: Robert Watson <rwatson@freebsd.org> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: panic in soabort Message-ID: <a31046fc0910010417n7a35785boe631dfa30c1151a7@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.0904252009420.91546@fledge.watson.org> References: <a31046fc0904230118m184b50adnd2cebb4d610f94ca@mail.gmail.com> <alpine.BSF.2.00.0904231038550.54334@fledge.watson.org> <a31046fc0904232104w380b7dabr1168b3df970c542a@mail.gmail.com> <alpine.BSF.2.00.0904252009420.91546@fledge.watson.org>
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2009/4/25 Robert Watson <rwatson@freebsd.org>: > > On Fri, 24 Apr 2009, pluknet wrote: > >> 2009/4/23 Robert Watson <rwatson@freebsd.org>: >>> >>> On Thu, 23 Apr 2009, pluknet wrote: >>> >>>> Please, give me comment on this. The panic is on 6.2-REL. Is it known = to >>>> be fixed in the latter releases? >>> >>> It may well be -- there have been quite significant architectural >>> improvements to socket life cycle (etc) between 6.2 and 7.x releases, w= hich >>> may well close the race causing this panic. =A0However, we'll probably = need to >>> learn a bit more in order to decide for sure. =A0Could you convert the >>> trapping instruction pointer to file+offset in the source code? >> >> Looks I've lost the corresponding kernel.debug. Anyway I have such bt th= e >> first time. > > If you run into this again, let me know. =A0Also, are you using accept fi= lters > on the box? > Got it again (this time on 6.4-p5). Fatal trap 12: page fault while in kernel mode cpuid =3D 2; apic id =3D 02 fault virtual address =3D 0x104 fault code =3D supervisor read, page not present instruction pointer =3D 0x20:0xc06a3425 stack pointer =3D 0x28:0xef764bb0 frame pointer =3D 0x28:0xef764bbc code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, def32 1, gran 1 processor eflags =3D resume, IOPL =3D 0 current process =3D 74303 (proftpd) db> bt 74303 Tracing pid 74303 tid 101039 td 0xcaa08820 _mtx_lock_sleep(ccd50768,caa08820,0,0,0) at _mtx_lock_sleep+0x9d soabort(ccd506f4) at soabort+0x82 soclose(d1aa8b20) at soclose+0x21a soo_close(c9f50a20,caa08820) at soo_close+0x63 fdrop_locked(c9f50a20,caa08820,caf78a00,ef764ca8,c06875f3,...) at fdrop_locked+0xd0 fdrop(c9f50a20,caa08820,caa08820,ef764c64,c0689055,...) at fdrop+0x41 closef(c9f50a20,caa08820,0,ef764d38,cad8f648,...) at closef+0x42f kern_close(caa08820,a,ef764d30,c08e1d4b,caa08820,...) at kern_close+0x20d close(caa08820,ef764d04) at close+0x10 syscall(bfbf003b,3b,bfbf003b,8150034,811a434,...) at syscall+0x2bf Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (6, FreeBSD ELF32, close), eip =3D 0x2832230f, esp =3D 0xbfbfe6bc, ebp =3D 0xbfbfe6d8 --- db> show proc 74303 Process 74303 (proftpd) at 0xcad8f648: state: NORMAL uid: 36830 gids: 36830 parent: pid 95478 at 0xc8e60000 ABI: FreeBSD ELF32 arguments: proftpd: fatich_1 - 93.118.217.18: IDLE threads: 1 101039 Run CPU 2 proftpd (gdb) list *(soabort+0x82) 0xc06ea2a6 is in soabort (/usr/src/sys/kern/uipc_socket.c:510). 505 int error; 506 507 error =3D (*so->so_proto->pr_usrreqs->pru_abort)(so); 508 if (error) { 509 ACCEPT_LOCK(); 510 SOCK_LOCK(so); 511 sotryfree(so); /* note: does not decrement the ref count */ 512 return error; 513 } 514 return (0); --=20 wbr, pluknet
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