* [Qemu-devel] an error while loading checkpoint @ 2011-12-07 23:41 sparsh mittal 2011-12-08 9:53 ` Stefan Hajnoczi 0 siblings, 1 reply; 6+ messages in thread From: sparsh mittal @ 2011-12-07 23:41 UTC (permalink / raw) To: qemu-devel [-- Attachment #1: Type: text/plain, Size: 287 bytes --] I get this warning while using a checkpoint. I issued the command -m 4G -icount 0 and other parameters. Unknown savevm section type 32 qemu-system-x86_64: Error -22 while loading VM state My computer has 48GB RAM, so I don't know what is the problem? Thanks and Regards Sparsh Mittal [-- Attachment #2: Type: text/html, Size: 435 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] an error while loading checkpoint 2011-12-07 23:41 [Qemu-devel] an error while loading checkpoint sparsh mittal @ 2011-12-08 9:53 ` Stefan Hajnoczi 2011-12-08 13:57 ` sparsh mittal 0 siblings, 1 reply; 6+ messages in thread From: Stefan Hajnoczi @ 2011-12-08 9:53 UTC (permalink / raw) To: sparsh mittal; +Cc: qemu-devel, Juan Quintela On Wed, Dec 7, 2011 at 11:41 PM, sparsh mittal <sparsh0mittal@gmail.com> wrote: > I get this warning while using a checkpoint. I issued the command -m 4G > -icount 0 and other parameters. > Unknown savevm section type 32 > qemu-system-x86_64: Error -22 while loading VM state > > My computer has 48GB RAM, so I don't know what is the problem? Looks like the stream has gotten out of sync. Please post the full QEMU command-line as well as any monitor commands you issued so it is possible to reproduce this. Stefan ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] an error while loading checkpoint 2011-12-08 9:53 ` Stefan Hajnoczi @ 2011-12-08 13:57 ` sparsh mittal 2011-12-08 14:18 ` Stefan Hajnoczi 0 siblings, 1 reply; 6+ messages in thread From: sparsh mittal @ 2011-12-08 13:57 UTC (permalink / raw) To: Stefan Hajnoczi; +Cc: qemu-devel, Juan Quintela [-- Attachment #1: Type: text/plain, Size: 2502 bytes --] I am using qemu as a part of Marss cycle-accurate simulator. http://marss86.org/~marss86/index.php/Home $ qemu/qemu-system-x86_64 -m 4G -snapshot -loadvm ffnn -vnc :3 -icount 0 -drive cache=unsafe,file=/local/sparsh/specimage_sftn3.qcow2 -simconfig MyConfigs/ffnn_100M.cfg Unknown savevm section type 32 qemu-system-x86_64: Error -22 while loading VM state ================================== Another thing is that only in this checkpoint (ffnn), I get this error, and not in any other checkpoint. ================================== Here is the information about the image: $ qemu/qemu-img info /local/sparsh/specimage_sftn3.qcow2 image: /local/sparsh/specimage_sftn3.qcow2 file format: qcow2 virtual size: 9.3G (10000000000 bytes) disk size: 30G cluster_size: 65536 Snapshot list: ID TAG VM SIZE DATE VM CLOCK 1 sfff1 1.9G 2011-12-02 14:45:23 00:16:36.700 2 sfft1 2.4G 2011-12-02 15:13:21 00:16:12.117 3 stnn 2.5G 2011-12-02 15:42:51 00:16:46.837 4 ftnn 1.5G 2011-12-02 16:06:46 00:16:45.460 6 sftt1 2.3G 2011-12-02 17:06:53 00:16:13.254 7 ffnn 1.0G 2011-12-02 17:30:37 00:16:20.771 8 snnn 2.4G 2011-12-02 17:50:50 00:16:10.128 9 sfft2 1.6G 2011-12-02 18:45:32 00:16:11.053 11 sftt2 2.3G 2011-12-02 20:04:26 00:16:15.169 12 sffn 1.8G 2011-12-06 10:46:26 00:16:31.435 13 ttff 2.0G 2011-12-06 11:05:40 00:16:05.729 ==================== I also have question whether -icount 0 or -icount auto can make a simulation more deterministic and whether qemu is affected by the load on the host (i.e. how many processes are running?) Sparsh On Thu, Dec 8, 2011 at 3:53 AM, Stefan Hajnoczi <stefanha@gmail.com> wrote: > On Wed, Dec 7, 2011 at 11:41 PM, sparsh mittal <sparsh0mittal@gmail.com> > wrote: > > I get this warning while using a checkpoint. I issued the command -m 4G > > -icount 0 and other parameters. > > Unknown savevm section type 32 > > qemu-system-x86_64: Error -22 while loading VM state > > > > My computer has 48GB RAM, so I don't know what is the problem? > > Looks like the stream has gotten out of sync. > > Please post the full QEMU command-line as well as any monitor commands > you issued so it is possible to reproduce this. > > Stefan > [-- Attachment #2: Type: text/html, Size: 3120 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] an error while loading checkpoint 2011-12-08 13:57 ` sparsh mittal @ 2011-12-08 14:18 ` Stefan Hajnoczi 2011-12-08 14:36 ` sparsh mittal 0 siblings, 1 reply; 6+ messages in thread From: Stefan Hajnoczi @ 2011-12-08 14:18 UTC (permalink / raw) To: sparsh mittal; +Cc: qemu-devel, Juan Quintela On Thu, Dec 8, 2011 at 1:57 PM, sparsh mittal <sparsh0mittal@gmail.com> wrote: > I am using qemu as a part of Marss cycle-accurate simulator. > http://marss86.org/~marss86/index.php/Home > > $ qemu/qemu-system-x86_64 -m 4G -snapshot -loadvm ffnn -vnc :3 -icount 0 > -drive cache=unsafe,file=/local/sparsh/specimage_sftn3.qcow2 -simconfig > MyConfigs/ffnn_100M.cfg I wonder if the image loads in vanilla QEMU. Try dropping the -icount 0 and -simconfig options just to see whether vanilla QEMU gets the same error or not. Also, have you asked on the Marss mailing list? Please try that first because the bug may be due to changes that were made to vanilla QEMU. https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel Stefan ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] an error while loading checkpoint 2011-12-08 14:18 ` Stefan Hajnoczi @ 2011-12-08 14:36 ` sparsh mittal 2011-12-08 14:50 ` sparsh mittal 0 siblings, 1 reply; 6+ messages in thread From: sparsh mittal @ 2011-12-08 14:36 UTC (permalink / raw) To: Stefan Hajnoczi; +Cc: qemu-devel, Juan Quintela [-- Attachment #1: Type: text/plain, Size: 1144 bytes --] On Thu, Dec 8, 2011 at 8:18 AM, Stefan Hajnoczi <stefanha@gmail.com> wrote: > On Thu, Dec 8, 2011 at 1:57 PM, sparsh mittal <sparsh0mittal@gmail.com> > wrote: > > I am using qemu as a part of Marss cycle-accurate simulator. > > http://marss86.org/~marss86/index.php/Home > > > > $ qemu/qemu-system-x86_64 -m 4G -snapshot -loadvm ffnn -vnc :3 -icount 0 > > -drive cache=unsafe,file=/local/sparsh/specimage_sftn3.qcow2 -simconfig > > MyConfigs/ffnn_100M.cfg > > I wonder if the image loads in vanilla QEMU. Try dropping the -icount > 0 and -simconfig options just to see whether vanilla QEMU gets the > same error or not. > > I have tried dropping all these: snapshot, icount, vnc, cache=unsafe, but still the error comes. I deleted this checkpoint and made another one (with different name, but same benchmarks), still error comes. I will also ask marss-forum. Surprisingly, with other checkpoints, error does not come. > Also, have you asked on the Marss mailing list? Please try that first > because the bug may be due to changes that were made to vanilla QEMU. > https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel > > Stefan > [-- Attachment #2: Type: text/html, Size: 1925 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] an error while loading checkpoint 2011-12-08 14:36 ` sparsh mittal @ 2011-12-08 14:50 ` sparsh mittal 0 siblings, 0 replies; 6+ messages in thread From: sparsh mittal @ 2011-12-08 14:50 UTC (permalink / raw) To: Stefan Hajnoczi; +Cc: qemu-devel, Juan Quintela [-- Attachment #1: Type: text/plain, Size: 1525 bytes --] I also have question whether -icount 0 or -icount auto can make a simulation more deterministic and whether qemu is affected by the load on the host (i.e. how many processes are running?) I would be grateful for a reply. Thanks and Regards Sparsh Mittal On Thu, Dec 8, 2011 at 8:36 AM, sparsh mittal <sparsh0mittal@gmail.com>wrote: > > > > > On Thu, Dec 8, 2011 at 8:18 AM, Stefan Hajnoczi <stefanha@gmail.com>wrote: > >> On Thu, Dec 8, 2011 at 1:57 PM, sparsh mittal <sparsh0mittal@gmail.com> >> wrote: >> > I am using qemu as a part of Marss cycle-accurate simulator. >> > http://marss86.org/~marss86/index.php/Home >> > >> > $ qemu/qemu-system-x86_64 -m 4G -snapshot -loadvm ffnn -vnc :3 -icount 0 >> > -drive cache=unsafe,file=/local/sparsh/specimage_sftn3.qcow2 -simconfig >> > MyConfigs/ffnn_100M.cfg >> >> I wonder if the image loads in vanilla QEMU. Try dropping the -icount >> 0 and -simconfig options just to see whether vanilla QEMU gets the >> same error or not. >> >> I have tried dropping all these: snapshot, icount, vnc, cache=unsafe, but > still the error comes. I deleted this checkpoint and made another one (with > different name, but same benchmarks), still error comes. > I will also ask marss-forum. > Surprisingly, with other checkpoints, error does not come. > > >> Also, have you asked on the Marss mailing list? Please try that first >> because the bug may be due to changes that were made to vanilla QEMU. >> https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel >> >> Stefan >> > > [-- Attachment #2: Type: text/html, Size: 2606 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-12-08 14:50 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2011-12-07 23:41 [Qemu-devel] an error while loading checkpoint sparsh mittal 2011-12-08 9:53 ` Stefan Hajnoczi 2011-12-08 13:57 ` sparsh mittal 2011-12-08 14:18 ` Stefan Hajnoczi 2011-12-08 14:36 ` sparsh mittal 2011-12-08 14:50 ` sparsh mittal
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