Menu
▾
▴
Re: [Dmtcp-forum] usage of LD_PRELOAD=dmtcphijack.so instead of dmtcp_checkpoint
|
From: rtsw d. <rts...@gm...> - 2012-03-26 15:00:43
|
Hi Gene, Thank you for you answer. Regards, Frédéric 2012/3/24, Gene Cooperman <ge...@cc...>: > Hi Frédéric, > The reading architecture-of-dmtcp.pdf is a high level overview. > In one of the technical details, it was necessary to bootstrap our > wrapper functions by setting an environment variable to indicate > the address of "dlsym" in libc.so. dmtcp_checkpoint computes this > and sends it in the environment variable DMTCP_DLSYM_OFFSET. > This is the meaning of the error message. > > Best, > - Gene > > On Thu, Mar 22, 2012 at 11:31:51AM +0100, rtsw dev wrote: >> Hi, >> >> After reading architecture-of-dmtcp.pdf, I wanted to try the usage of >> dmtcphijack.so. >> >> I get the followings : >> $ dmtcp_coordinator --background >> dmtcp_coordinator starting... >> Port: 7779 >> Checkpoint Interval: disabled (checkpoint manually instead) >> Exit on last client: 0 >> Backgrounding... >> $ LD_PRELOAD=$DMTCP_PATH/lib/dmtcp/dmtcphijack.so test_dmtcp >> syscallsreal.c:289 DMTCP Internal Error: Env var DMTCP_DLSYM_OFFSET not >> set. >> Aborting. >> >> Aborted >> >> Did I miss something ? >> >> Thanks, >> Frédéric > On Thu, Mar 22, 2012 at 11:31:51AM +0100, rtsw dev wrote: >> Hi, >> >> After reading architecture-of-dmtcp.pdf, I wanted to try the usage of >> dmtcphijack.so. >> >> I get the followings : >> $ dmtcp_coordinator --background >> dmtcp_coordinator starting... >> Port: 7779 >> Checkpoint Interval: disabled (checkpoint manually instead) >> Exit on last client: 0 >> Backgrounding... >> $ LD_PRELOAD=$DMTCP_PATH/lib/dmtcp/dmtcphijack.so test_dmtcp >> syscallsreal.c:289 DMTCP Internal Error: Env var DMTCP_DLSYM_OFFSET not >> set. >> Aborting. >> >> Aborted >> >> Did I miss something ? >> >> Thanks, >> Frédéric > On Thu, Mar 22, 2012 at 11:31:51AM +0100, rtsw dev wrote: >> Hi, >> >> After reading architecture-of-dmtcp.pdf, I wanted to try the usage of >> dmtcphijack.so. >> >> I get the followings : >> $ dmtcp_coordinator --background >> dmtcp_coordinator starting... >> Port: 7779 >> Checkpoint Interval: disabled (checkpoint manually instead) >> Exit on last client: 0 >> Backgrounding... >> $ LD_PRELOAD=$DMTCP_PATH/lib/dmtcp/dmtcphijack.so test_dmtcp >> syscallsreal.c:289 DMTCP Internal Error: Env var DMTCP_DLSYM_OFFSET not >> set. >> Aborting. >> >> Aborted >> >> Did I miss something ? >> >> Thanks, >> Frédéric >> >> ------------------------------------------------------------------------------ >> This SF email is sponsosred by: >> Try Windows Azure free for 90 days Click Here >> http://p.sf.net/sfu/sfd2d-msazure >> _______________________________________________ >> Dmtcp-forum mailing list >> Dmt...@li... >> https://lists.sourceforge.net/lists/listinfo/dmtcp-forum > |