From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Serge E. Hallyn" Subject: Re: [RFC v9][PATCH 00/13] Kernel based checkpoint/restart Date: Tue, 11 Nov 2008 23:03:19 -0600 Message-ID: <20081112050319.GA3687@us.ibm.com> References: <1226335060-7061-1-git-send-email-orenl@cs.columbia.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1226335060-7061-1-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Oren Laadan Cc: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Ingo Molnar , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Dave Hansen , linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, Linus Torvalds , Alexander Viro , "H. Peter Anvin" , Andrew Morton , Thomas Gleixner List-Id: containers.vger.kernel.org Quoting Oren Laadan (orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org): > Checkpoint-restart (c/r): v9 adds support for multiple processes. > (rebase to v2.6.28-rc3). > > We'd like to see these make their way into -mm. All comments have > been addressed in this version. Please pull at least the first 11 > patches, as they are similar to before. With the trivial fix to patch 5 I sent earlier, I've been running the following e2loop.sh for a few hours with no problems (the counter is at 2412). Also did 500 concurrent checkpoints of the same process. Oren, can you re-post an updated patch 5? Andrew, would you mind (once Oren reposts patch 5) giving the first 11 patches a chance in -mm? thanks, -serge =============== e2loop.sh: =============== cnt=1 /usr/src/ns_exec -m /root/e2 & while [ 1 ]; do /usr/src/cr `pidof e2` o.$cnt kill -9 `pidof e2` echo 5 > /root/e2out cntin=`cat /root/e2out` echo "i reset e2out to $cntin" #/usr/src/rstr < /root/o.$cnt & /usr/src/ns_exec -m /usr/src/rstr /root/o.$cnt & cnt=$((cnt+1)) sleep 10 cntin=`cat /root/e2out` echo "cnt is $cnt, e2out has $cntin" done =============== e2.c: =============== #include #include #include int main() { int cnt=0; FILE *f; char fnam[20]; close(0); close(1); close(2); close(3); f = fopen("e2out", "r"); if (!f) cnt = 1; else { fscanf(f, "%d", &cnt); fclose(f); } for (;;) { sleep(5); f = fopen("e2out", "w"); if (!f) return 1; fprintf(f, "%d", ++cnt); fclose(f); } return 0; } From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753569AbYKLFEA (ORCPT ); Wed, 12 Nov 2008 00:04:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752902AbYKLFD1 (ORCPT ); Wed, 12 Nov 2008 00:03:27 -0500 Received: from e34.co.us.ibm.com ([32.97.110.152]:57539 "EHLO e34.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751719AbYKLFDZ (ORCPT ); Wed, 12 Nov 2008 00:03:25 -0500 Date: Tue, 11 Nov 2008 23:03:19 -0600 From: "Serge E. Hallyn" To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Thomas Gleixner , Dave Hansen , Ingo Molnar , "H. Peter Anvin" , Alexander Viro Subject: Re: [RFC v9][PATCH 00/13] Kernel based checkpoint/restart Message-ID: <20081112050319.GA3687@us.ibm.com> References: <1226335060-7061-1-git-send-email-orenl@cs.columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1226335060-7061-1-git-send-email-orenl@cs.columbia.edu> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Oren Laadan (orenl@cs.columbia.edu): > Checkpoint-restart (c/r): v9 adds support for multiple processes. > (rebase to v2.6.28-rc3). > > We'd like to see these make their way into -mm. All comments have > been addressed in this version. Please pull at least the first 11 > patches, as they are similar to before. With the trivial fix to patch 5 I sent earlier, I've been running the following e2loop.sh for a few hours with no problems (the counter is at 2412). Also did 500 concurrent checkpoints of the same process. Oren, can you re-post an updated patch 5? Andrew, would you mind (once Oren reposts patch 5) giving the first 11 patches a chance in -mm? thanks, -serge =============== e2loop.sh: =============== cnt=1 /usr/src/ns_exec -m /root/e2 & while [ 1 ]; do /usr/src/cr `pidof e2` o.$cnt kill -9 `pidof e2` echo 5 > /root/e2out cntin=`cat /root/e2out` echo "i reset e2out to $cntin" #/usr/src/rstr < /root/o.$cnt & /usr/src/ns_exec -m /usr/src/rstr /root/o.$cnt & cnt=$((cnt+1)) sleep 10 cntin=`cat /root/e2out` echo "cnt is $cnt, e2out has $cntin" done =============== e2.c: =============== #include #include #include int main() { int cnt=0; FILE *f; char fnam[20]; close(0); close(1); close(2); close(3); f = fopen("e2out", "r"); if (!f) cnt = 1; else { fscanf(f, "%d", &cnt); fclose(f); } for (;;) { sleep(5); f = fopen("e2out", "w"); if (!f) return 1; fprintf(f, "%d", ++cnt); fclose(f); } return 0; } From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e31.co.us.ibm.com (8.13.1/8.13.1) with ESMTP id mAC52UYd011297 for ; Tue, 11 Nov 2008 22:02:30 -0700 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id mAC53M33092410 for ; Tue, 11 Nov 2008 22:03:22 -0700 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id mAC52rA9010374 for ; Tue, 11 Nov 2008 22:02:53 -0700 Date: Tue, 11 Nov 2008 23:03:19 -0600 From: "Serge E. Hallyn" Subject: Re: [RFC v9][PATCH 00/13] Kernel based checkpoint/restart Message-ID: <20081112050319.GA3687@us.ibm.com> References: <1226335060-7061-1-git-send-email-orenl@cs.columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1226335060-7061-1-git-send-email-orenl@cs.columbia.edu> Sender: owner-linux-mm@kvack.org Return-Path: To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Thomas Gleixner , Dave Hansen , Ingo Molnar , "H. Peter Anvin" , Alexander Viro List-ID: Quoting Oren Laadan (orenl@cs.columbia.edu): > Checkpoint-restart (c/r): v9 adds support for multiple processes. > (rebase to v2.6.28-rc3). > > We'd like to see these make their way into -mm. All comments have > been addressed in this version. Please pull at least the first 11 > patches, as they are similar to before. With the trivial fix to patch 5 I sent earlier, I've been running the following e2loop.sh for a few hours with no problems (the counter is at 2412). Also did 500 concurrent checkpoints of the same process. Oren, can you re-post an updated patch 5? Andrew, would you mind (once Oren reposts patch 5) giving the first 11 patches a chance in -mm? thanks, -serge =============== e2loop.sh: =============== cnt=1 /usr/src/ns_exec -m /root/e2 & while [ 1 ]; do /usr/src/cr `pidof e2` o.$cnt kill -9 `pidof e2` echo 5 > /root/e2out cntin=`cat /root/e2out` echo "i reset e2out to $cntin" #/usr/src/rstr < /root/o.$cnt & /usr/src/ns_exec -m /usr/src/rstr /root/o.$cnt & cnt=$((cnt+1)) sleep 10 cntin=`cat /root/e2out` echo "cnt is $cnt, e2out has $cntin" done =============== e2.c: =============== #include #include #include int main() { int cnt=0; FILE *f; char fnam[20]; close(0); close(1); close(2); close(3); f = fopen("e2out", "r"); if (!f) cnt = 1; else { fscanf(f, "%d", &cnt); fclose(f); } for (;;) { sleep(5); f = fopen("e2out", "w"); if (!f) return 1; fprintf(f, "%d", ++cnt); fclose(f); } return 0; } -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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