Dave Hansen wrote: > A guy named Marc Vertes wrote this as a little demonstration of > checkpoint/restart. I've been using it to experiment with > checkpoint/restart. I thought it might be of some use as we move > subsystems to being helped by the kernel to checkpoint and restart. > > It's ptrace-based, and stuck on i386 for now. It can probably be ported > elsewhere without too much trouble. It doesn't support *anything > fancy like multuiple tasks :). It has the advantage of being very > feature-bare, and I think it is pretty easy to hack on. Whatever c/r > support we add to the kernel could easily be added on and tested. > > http://userweb.kernel.org/~daveh/cryo/cryo-001.tar.gz > > Usage: > cr -p `pidof task` > checkpoint.cryo > cr -r < checkpoint.cryo > > If anyone else has something simpler or easier to hack on, I'm all ears. Indeed. It looks simple enough. do you have some kernel requirement ? I run Fedora 8 Here's my first try on a program calculating decimal of PI : $ ./cr -p `pidof pi1` > pi1.cryo attaching to pid: 11082 [11087 cr.c:243 getfdinfo()] n : 0 WARNING (sci.c:242) unexpected signal for 11082: 11 [11087 sci.c:228 ptrace_waitsyscall()] WTERMSIG(status) : 11 ERROR (sci.c:383) ptrace_getregs(11082, 0xbfe4a3d0) errno=3: No such process ./cr[0x8051f10] ./cr[0x8049ce9] ./cr[0x804b7d2] ./cr[0x804f75b] ***STOP*** other terminal : $ pi1 20000 pi1 - 20000 digits, 78.1 kbytes Segmentation fault (core dumped) Thanks, C. Signed-off-by: Cedric Le Goater <clg@xxxxxxxxxx> --- Makefile~ 2008-04-25 19:05:57.000000000 +0200 +++ Makefile 2008-04-28 09:02:50.000000000 +0200 @@ -7,6 +7,3 @@ all : $(BIN) $(MAN1) #cr: cr.o utils.o list_hash.o ptrace_linux_x86.o cr: cr.o utils.o list_hash.o sci.o injlib.o - -include ../version.mk -include ../c.mk _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
