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 1BxWxi-0007wM-GS for user-mode-linux-devel@lists.sourceforge.net; Wed, 18 Aug 2004 13:23:10 -0700 Received: from gtfw2.enterasys.com ([12.25.1.128] ident=firewall-user) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.34) id 1BxWxg-0007gC-UT for user-mode-linux-devel@lists.sourceforge.net; Wed, 18 Aug 2004 13:23:10 -0700 Received: from NHROCAVG2.ets.enterasys.com (nhrocavg2.enterasys.com [134.141.79.124]) by gtfw2.enterasys.com (0.25.1/8.12.6) with ESMTP id i7IKN0ao003743 for ; Wed, 18 Aug 2004 16:23:00 -0400 (EDT) Message-ID: <4123BA9D.6080201@enterasys.com> From: "D. Bahi" MIME-Version: 1.0 References: <412227A4.6060005@enterasys.com> In-Reply-To: <412227A4.6060005@enterasys.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig6410B4BEEAF9C75DCC56E2B3" Subject: [uml-devel] No Bug Here: [Was: Expected SIGSTOP persists in 2.4.26-3um ] 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, 18 Aug 2004 16:22:53 -0400 To: user-mode-linux-devel@lists.sourceforge.net This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig6410B4BEEAF9C75DCC56E2B3 Content-Type: multipart/mixed; boundary="------------030404090700020108000904" This is a multi-part message in MIME format. --------------030404090700020108000904 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I withdraw this error report against 2.4.26-3um against any plain vanilla UML kernel for that matter. I've launched 2.4.26-3um about 200 times (50 at once even, with the script attached its easy to stress test!) and never seen this in a kernel that we haven't modified ourselves... still if anyone has any ideas.... Thanks for your patience. D. Bahi wrote: > launching UMLs with nice seems to aggravate this problem -- > but it also has been seen w/o adding that irritant. > > status is 0x1c7f - which maps to 0x1c (SIGWINCH 28 right?) > > here it is trying to panic and generates a segfault > > #4 0x08051270 in main (argc=11, argv=0xbfffd3e4, envp=0xbfffd414) at > arch/um/main.c:148 > #3 0x080dd2f4 in linux_main (argc=11, argv=0xbfffd3e4) at um_arch.c:332 > #2 0x080d9154 in can_do_skas () at process.c:255 > #1 0x080d9058 in stop_ptraced_child (pid=21301, stack=0x40001000, > exitcode=1) at process.c:182 > #0 0x0805628c in panic (fmt=0x81c8080 "check_ptrace : child exited with > status 0x%x") at panic.c:67 > > values for locals and parameters in stop_ptraced_child are: > > (gdb) print errno > $1 = 0 > (gdb) print n > $2 = -1073774592 > (gdb) print pid > $3 = 21301 > (gdb) print status > $4 = 7295 > (gdb) print exitcode > $5 = 1 > (gdb) set radix 16 > (gdb) print status > $6 = 0x1c7f > (gdb) print n > $7 = 0xbfff8000 > > also have seen: > > 2.4.24-1um + reboot-signals > > Checking for the skas3 patch in the host...found > Checking for /proc/mm...found > CONFIG_HIGHMEM not enabled - physical memory shrunk to 499122176 bytes > Kernel virtual memory size shrunk to 32505856 bytes > capture_stack : Expected SIGSTOP, got status = 0x1c7f > > > 2.4.26-3um > > Checking for the skas3 patch in the host...found > Checking for /proc/mm...found > capture_stack : Expected SIGSTOP, got status = 0x1c7f > > -- Damn it! Morons don't learn until they die! -- Faye Valentine, _Cowboy Bebop, The Movie_. --------------030404090700020108000904 Content-Type: text/plain; name="uml_launch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="uml_launch" #!/bin/bash declare -i idx= first=1 rm -rf /local/target0/umltest mkdir -p /local/umltest/cow mkdir -p /local/umltest/hostfs if (( $# < 1 )); then idx=1 else idx=$1 fi root="/local/dbahi/root_fs.rh-9-full" swap="/local/dbahi/swap_fs.256" pipe="/local/umltest/pipe" linux="/view/dmerrill_linux/ccase/linux24/src/linux" if [[ ! -x "${linux}" ]]; then echo -ne "${linux}\n\nnot found or not executable!!!!\n" exit fi pause=5 mem="128M" nice="nice" screen="screen -DmS" xterm="xterm -e screen -r" tunctl="tunctl -b -u $USER" echo -ne "\n# Will launch $idx UML(s)...\n#\n#" echo -ne "\n# Launching tunctl for tap interface with command:\n#" echo -ne "\n# ${tunctl}\n#\n#" tapdev=$(${tunctl}) umlxcmd="/usr/bin/uml_switch -unix ${pipe} -tap ${tapdev}" tunrm="tunctl -d ${tapdev}" echo -ne "\n# Launching uml_switch with command:\n#" echo -ne "\n# ${screen} uml_switch -t uml_switch ${umlxcmd}\n#\n#" echo -ne "\n# Attaching uml_switch with command:\n#" echo -ne "\n# ${xterm} uml_switch\n#\n#" ${screen} uml_switch -t uml_switch ${umlxcmd} & ${xterm} uml_switch & cur=1 while (( $cur <= $idx )); do umid="uml_${cur}" mac=$(echo "ibase=10; obase=16; ${cur}" | bc) ubd0cow="/local/umltest/cow/ubd0_${cur}" ubd1cow="/local/umltest/cow/ubd1_${cur}" hfsdir="/local/umltest/hostfs/host_${cur}" eth="daemon,fe:fd:00:00:00:${mac},unix,${pipe}" cmd="${nice} ${linux} umid=${umid} ubd0=${ubd0cow},${root} ubd1=${ubd1cow},${swap} hostfs=${hfsdir} mem=${mem} eth0=${eth}" if (( $first > 0 )); then first=0 echo -ne "\n# Launching UML with commands like:\n#" echo -ne "\n# ${screen} ${umid} -t ${umid} ${cmd}\n#\n#" echo -ne "\n# Attaching UML with commands like:\n#" echo -ne "\n# ${xterm} ${umid}\n#\n#" echo -ne "\n# Use the following to shutdown:\n\n\n" echo -ne "pkill uml_switch\n\n" fi echo -ne "uml_mconsole ${umid} halt" mkdir -p ${hfsdir} ${screen} ${umid} -t ${umid} ${cmd} & ${xterm} ${umid} & if (( $cur < $idx )); then echo -ne " # pausing ."; slept=0 while (( $slept < $pause )); do sleep 1 echo -ne "." slept=$((slept + 1)) done fi echo -ne "\n" cur=$((cur + 1)) done echo -ne "\n$tunrm\n" echo -ne "\n\n# Done.\n" --------------030404090700020108000904-- --------------enig6410B4BEEAF9C75DCC56E2B3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (MingW32) iD8DBQFBI7qi3XQ4zakZ3z4RAh8nAJ4gCjK0dKYC60xU6M/WSZk+GmY6bwCfSAGO riw0ghulVkxsgaDU0DRUGDg= =5W2x -----END PGP SIGNATURE----- --------------enig6410B4BEEAF9C75DCC56E2B3-- ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel