From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1D4Ak0-0004hx-NE for user-mode-linux-devel@lists.sourceforge.net; Wed, 23 Feb 2005 20:36:44 -0800 Received: from gtfw2.enterasys.com ([12.25.1.128] ident=firewall-user) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.41) id 1D4Ajw-0002WY-U7 for user-mode-linux-devel@lists.sourceforge.net; Wed, 23 Feb 2005 20:36:44 -0800 Received: from NHROCAVG2.ets.enterasys.com ([134.141.79.124]) by gtfw2.enterasys.com (0.25.1/8.12.6) with ESMTP id j1O4aUZC000305 for ; Wed, 23 Feb 2005 23:36:30 -0500 (EST) Message-ID: <421D59C5.9020003@enterasys.com> From: "D. Bahi" MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig44A6FFA21F29787726BDFD63" Subject: [uml-devel] UML startup -- segfault with no mm Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 23 Feb 2005 23:36:21 -0500 To: uml devel This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig44A6FFA21F29787726BDFD63 Content-Type: multipart/mixed; boundary="------------060308010306000207040806" This is a multi-part message in MIME format. --------------060308010306000207040806 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit hello wonderful umlers, here's a wonderfully infrequent but nagging startup failure that usually has a useless (no stack depth, or just corrupt) backtrace... Here's all the user sees: Checking for the skas3 patch in the host...found Checking for /proc/mm...found Enterasys Node Driver v0.1 (4, 15, 0) Kernel panic: Segfault with no mm In idle task - not syncing and then it dumps core - that, this once, had a (possibly informative) backtrace (attached). host is 2.4.20-31 redhat9 + skas - nptl guest is 2.4.26-3um + core_on_panic and other local mods that are *not* in this trace. thank you for any insight. (please, no suggestions to update :-) -- db --------------060308010306000207040806 Content-Type: text/plain; name="segfault_with_nomm_bt.txt" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="segfault_with_nomm_bt.txt" (gdb) bt #0 0x0815dfc1 in kill () #1 0x0817a2d2 in raise () #2 0x0815e2ad in abort () #3 0x080dac3e in panic_coreonpanic (self=0x81f6c3c, unused1=0, unused2=0x820ed60) at um_arch.c:425 #4 0x0805e46a in notifier_call_chain (n=0x0, val=0, v=0x820ed60) at sys.c:148 #5 0x080533d9 in panic (fmt=0x81ba50f "Segfault with no mm") at panic.c:77 #6 0x080da339 in segv (address=3221194032, ip=0, is_write=0, is_user=0, sc=0xbfff8270) at trap_kern.c:149 #7 0x080da67d in segv_handler (sig=11, regs=0xbfff8270) at trap_user.c:74 #8 0x080dcad1 in sig_handler_common_skas (sig=11, sc_ptr=0x58) at trap_user.c:35 #9 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221197508, esp = 3221197484, ebx = 3221197552, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221197484, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #10 #11 sig_handler_common_skas (sig=11, sc_ptr=0xbfff92f0) at trap_user.c:25 #12 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221198300, esp = 3221198276, ebx = 3221198344, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221198276, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #13 #14 sig_handler_common_skas (sig=11, sc_ptr=0xbfff9608) at trap_user.c:25 #15 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221199092, esp = 3221199068, ebx = 3221199136, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221199068, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #16 #17 sig_handler_common_skas (sig=11, sc_ptr=0xbfff9920) at trap_user.c:25 #18 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221199884, esp = 3221199860, ebx = 3221199928, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221199860, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #19 #20 sig_handler_common_skas (sig=11, sc_ptr=0xbfff9c38) at trap_user.c:25 #21 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221200676, esp = 3221200652, ebx = 3221200720, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221200652, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #22 #23 sig_handler_common_skas (sig=11, sc_ptr=0xbfff9f50) at trap_user.c:25 #24 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221201468, esp = 3221201444, ebx = 3221201512, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221201444, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #25 #26 sig_handler_common_skas (sig=11, sc_ptr=0xbfffa268) at trap_user.c:25 #27 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221202260, esp = 3221202236, ebx = 3221202304, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221202236, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #28 #29 sig_handler_common_skas (sig=11, sc_ptr=0xbfffa580) at trap_user.c:25 #30 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221203052, esp = 3221203028, ebx = 3221203096, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221203028, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #31 #32 sig_handler_common_skas (sig=11, sc_ptr=0xbfffa898) at trap_user.c:25 #33 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221203844, esp = 3221203820, ebx = 3221203888, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221203820, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #34 #35 sig_handler_common_skas (sig=11, sc_ptr=0xbfffabb0) at trap_user.c:25 #36 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221204636, esp = 3221204612, ebx = 3221204680, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221204612, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #37 #38 sig_handler_common_skas (sig=11, sc_ptr=0xbfffaec8) at trap_user.c:25 #39 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221205428, esp = 3221205404, ebx = 3221205472, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221205404, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #40 #41 sig_handler_common_skas (sig=11, sc_ptr=0xbfffb1e0) at trap_user.c:25 #42 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221206220, esp = 3221206196, ebx = 3221206264, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221206196, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #43 #44 sig_handler_common_skas (sig=11, sc_ptr=0xbfffb4f8) at trap_user.c:25 #45 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221207012, esp = 3221206988, ebx = 3221207056, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221206988, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #46 #47 sig_handler_common_skas (sig=11, sc_ptr=0xbfffb810) at trap_user.c:25 #48 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136676108, esi = 3221193328, ebp = 3221207804, esp = 3221207780, ebx = 3221207848, edx = 1, ecx = 2147767344, eax = 3221192704, trapno = 14, err = 4, eip = 135121527, cs = 35, __csh = 0, eflags = 66182, esp_at_signal = 3221207780, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 = 3221194032}) at trap_user.c:109 #49 #50 sig_handler_common_skas (sig=11, sc_ptr=0xbfffbb28) at trap_user.c:25 #51 0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 0, esi = 3221192704, ebp = 3221208596, esp = 3221208572, ebx = 0, edx = 1, ecx = 2147767344, eax = 0, trapno = 14, err = 6, eip = 134594293, cs = 35, __csh = 0, eflags = 66198, esp_at_signal = 3221208572, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436207616, cr2 = 3221192972}) at trap_user.c:109 #52 #53 update_one_process (p=0xbfff8000, user=0, system=136277052, cpu=0) at timer.c:585 #54 0x0805bff0 in update_process_times (user_tick=0) at timer.c:600 #55 0x0805c1b2 in do_timer (regs=0x0) at timer.c:705 #56 0x080d9ce4 in boot_timer_handler (sig=26) at time_kern.c:92 #57 #58 0x0816d224 in ioctl () #59 0x0825830c in buf.2 () #60 0x0816e383 in pts_name () #61 0x0816dff9 in grantpt () #62 0x0815ce92 in openpty () #63 0x080d7631 in openpty_cb (arg=0x81efa64) at sigio_user.c:47 #64 0x080dbde1 in start_idle_thread (stack=0x81e8000, switch_buf_ptr=0x81e8578, fork_buf_ptr=0x0) at process.c:292 #65 0x080dc48a in start_uml_skas () at process_kern.c:193 #66 0x080daae3 in linux_main (argc=19, argv=0x30000000) at um_arch.c:393 #67 0x08050286 in main (argc=19, argv=0xbfffe994, envp=0xbfffe9e4) at arch/um/main.c:149 #68 0x0815d97b in __libc_start_main () --------------060308010306000207040806-- --------------enig44A6FFA21F29787726BDFD63 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (MingW32) iD8DBQFCHVnL3XQ4zakZ3z4RAkZ7AJ4s5Y6u3fdtX95mCqnMiVakWv0eWACeLdcG GbUtoj+WKJ3sUxcdywUJXl8= =0k1P -----END PGP SIGNATURE----- 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