Date: Sat, 16 Dec 2006 20:57:36 +0800 (CST) From: Tai-hwa Liang <avatar@mmlab.cse.yzu.edu.tw> To: Robert Watson <rwatson@FreeBSD.org> Cc: freebsd-current@freebsd.org Subject: Re: CURRENT freezes on Laitude D520 Message-ID: <0612162051509.77059@www.mmlab.cse.yzu.edu.tw> In-Reply-To: <20061211140519.Q4227@fledge.watson.org> References: <52944.192.168.1.110.1165679313.squirrel@yal.hopto.org> <20061209195519.B60055@mp2.macomnet.net> <20061209204924.N9926@fledge.watson.org> <cb5206420612091310r719f7b3en2d4fb35b23453ddf@mail.gmail.com> <20061209214233.L2273@fledge.watson.org> <0612101036232.41529@www.mmlab.cse.yzu.edu.tw> <20061210084254.X9926@fledge.watson.org> <06121121220014.48706@www.mmlab.cse.yzu.edu.tw> <20061211140519.Q4227@fledge.watson.org>
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On Mon, 11 Dec 2006, Robert Watson wrote: > On Mon, 11 Dec 2006, Tai-hwa Liang wrote: >>> the kernel with KDB, DDB, and BREAK_TO_DEBUGGER, and user a serial or >>> firewire console. If the hang occurs, see if you can get into the >>> debugger, in which case the logged output from DDB for the following >>> commands would be very useful: >>> >>> show pcpu >>> show allpcpu >>> trace >>> alltrace >>> ps >>> show locks >>> show alllocks >>> show lockedvnods >>> show uma >>> show malloc >>> >>> Please open a PR that describes your configuration, includes your kernel >>> config (since it seems quite customized), any loader.conf settings, a >>> detailed description of the problem, and the output. I'd be quite >>> interested >> >> Okay, I'll file a PR once I can collect more information with the serial >> console(probably weekend). For now our system administrator is pretty >> nervous about my suggestion on turning debug.mpsafenet back to 1. ;) > > Thanks. Okay, I filed the collected data as kern/106805. Looks to me that the lockup does related to the WITNESS warning I've observed. db> trace Tracing pid 924 tid 100042 td 0xc653e480 kdb_enter(c0685297) at kdb_enter+0x2b siointr1(c6539400,c071fec0,0,c06850a1,56e,...) at siointr1+0xce siointr(c6539400) at siointr+0x21 intr_execute_handlers(c63ea4c8,e6c308d0,4,e6c30920,c0621693,...) at intr_execute_handlers+0xe1 lapic_handle_intr(38) at lapic_handle_intr+0x2e Xapic_isr1() at Xapic_isr1+0x33 --- interrupt, eip = 0xc04edf41, esp = 0xe6c30914, ebp = 0xe6c30920 --- _mtx_lock_sleep(c698ce80,c653e480,0,c698a1b6,18f2) at _mtx_lock_sleep+0x115 _mtx_lock_flags(c698ce80,0,c698a1b6,18f2,c698ce80,...) at _mtx_lock_flags+0xa2 pf_test(2,c64bb800,e6c30a78,0,c755d000,...) at pf_test+0x81 pf_check_out(0,e6c30a78,c64bb800,2,c755d000) at pf_check_out+0x3d pfil_run_hooks(c071a420,e6c30af4,c64bb800,2,c755d000,...) at pfil_run_hooks+0xc9 ip_output(c687d700,0,e6c30ac0,0,0,c755d000) at ip_output+0x83a tcp_output(c7558740) at tcp_output+0xe0d tcp_disconnect(c7558740) at tcp_disconnect+0xe0 tcp_usr_disconnect(c72776f4,e6c30bf0,c0531e2c,c72776f4,c6edf480,...) at tcp_usr_disconnect+0x6b sodisconnect(c72776f4) at sodisconnect+0x26 soclose(c72776f4) at soclose+0x48 soo_close(c6edf480,c653e480) at soo_close+0x4b fdrop_locked(c6edf480,c653e480,c63d5084,0,c0667839,...) at fdrop_locked+0x88 fdrop(c6edf480,c653e480,6ac,c06d02e0,0,...) at fdrop+0x24 closef(c6edf480,c653e480,0,0,39,...) at closef+0x367 close(c653e480,e6c30d04) at close+0x1a6 syscall(3b,3b,3b,0,39,...) at syscall+0x22f Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (6, FreeBSD ELF32, close), eip = 0x2830e9af, esp = 0xbfbe88dc, ebp = 0xbfbe88f8 --- -- Cheers, Tai-hwa Liang
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