search for: p2m_size

This patch allows core-dumping to work on a cross-bit host/guest configuration, whereas previously that was not supported. It supports both PV and FV guests. The core file format generated by the host, needs to match that of the guest, so an alignment issue is addressed, along with the p2m frame list handling being done according to the guest size. Signed-off-by: Bruce Rogers

A pv guest will not reboot after migration, the guest itself does everything right, including the shutdown, but xl does not recreate the guest, it just shuts it down. This goes for 2.6.39 and 3.0.4 guest kernels, havent tried different ones. I also haven tried different xen versions. Dont know if this would affect hvm, probably not since qemu leaves the guest running and does a

Trying to migrate a 64bit PV guest with 64GB running medium to heavy load on xen 3.4.0, it is showing lot of soft lockups. The softlockups are causing dom0 reboot by the cluster FS. The hardware has 256GB and 32 CPUs. Looking into the hypervisor thru kdb, I see one cpu in sh_resync_all() while all other 31 appear spinning on the shadow_lock. I vaguely remember seeing some thread on this while

...8 04:23:16 9497] DEBUG (XendCheckpoint:286) restore:shadow=0x0, _static_max=0x40000000, _static_min=0x0, [2010-05-08 04:23:16 9497] DEBUG (XendCheckpoint:305) [xc_restore]: /usr/lib/xen/bin/xc_restore 22 10 1 2 0 0 0 0 [2010-05-08 04:23:16 9497] INFO (XendCheckpoint:423) xc_domain_restore start: p2m_size = 40000 [2010-05-08 04:23:16 9497] INFO (XendCheckpoint:423) Reloading memory pages: 0% [2010-05-08 04:25:53 9497] INFO (XendCheckpoint:423) ERROR Internal error: Error when reading batch size [2010-05-08 04:25:53 9497] INFO (XendCheckpoint:423) ERROR Internal error: error when buffering batch...

...8 04:23:16 9497] DEBUG (XendCheckpoint:286) restore:shadow=0x0, _static_max=0x40000000, _static_min=0x0, [2010-05-08 04:23:16 9497] DEBUG (XendCheckpoint:305) [xc_restore]: /usr/lib/xen/bin/xc_restore 22 10 1 2 0 0 0 0 [2010-05-08 04:23:16 9497] INFO (XendCheckpoint:423) xc_domain_restore start: p2m_size = 40000 [2010-05-08 04:23:16 9497] INFO (XendCheckpoint:423) Reloading memory pages: 0% [2010-05-08 04:25:53 9497] INFO (XendCheckpoint:423) ERROR Internal error: Error when reading batch size [2010-05-08 04:25:53 9497] INFO (XendCheckpoint:423) ERROR Internal error: error when buffering batch...

...9:16:38 EST 2013 xend_config_format : 4 Xen xl log, after issuing the reboot command: Domain 8 needs to be cleaned up: destroying the domain Done. Rebooting now xc: error: 0-length read: Internal error xc: error: read_exact_timed failed (read rc: 0, errno: 0): Internal error xc: error: read: p2m_size (0 = Success): Internal error libxl: error: libxl_create.c:820:libxl__xc_domain_restore_done: restoring domain: Success libxl: error: libxl_create.c:902:domcreate_rebuild_done: cannot (re-)build domain: -3 libxl: error: libxl.c:1394:libxl__destroy_domid: non-existant domain 9 libxl: error: libxl.c:...

...================== [2007-04-10 09:57:24 4664] DEBUG (balloon:113) Balloon: 754076 KiB free; need 65536; done. [2007-04-10 09:57:24 4664] DEBUG (XendCheckpoint:220) [xc_restore]: /usr/lib/xen/bin/xc_restore 24 4 1 2 0 0 0 [2007-04-10 09:57:24 4664] INFO (XendCheckpoint:336) xc_domain_restore start: p2m_size = 4800 [2007-04-10 09:57:24 4664] INFO (XendCheckpoint:336) Reloading memory pages: 0% [2007-04-10 09:57:25 4664] INFO (XendCheckpoint:336) Failed allocation for dom 4: 125 extents of order 0 [2007-04-10 09:57:25 4664] INFO (XendCheckpoint:336) ERROR Internal error: Failed to allocate memory for...

...tic_min=0x0, [2008-05-07 22:40:12 3314] DEBUG (balloon:132) Balloon: 12803896 KiB free; need 537600; done. [2008-05-07 22:40:12 3314] DEBUG (XendCheckpoint:235) [xc_restore]: /usr/lib64/xen/bin/xc_restore 31 186 2 3 1 1 1 [2008-05-07 22:40:12 3314] INFO (XendCheckpoint:373) xc_domain_restore start: p2m_size = 100000 [2008-05-07 22:40:12 3314] INFO (XendCheckpoint:373) Reloading memory pages: 0% [2008-05-07 22:40:35 3314] INFO (XendCheckpoint:373) Received all pages (0 races) [2008-05-07 22:40:35 3314] INFO (XendCheckpoint:373) Restore exit with rc=0 [2008-05-07 22:40:35 3314] DEBUG (XendCheckpoint:3...

...min=0x0, [2009-01-03 21:29:09 4814] DEBUG (balloon:132) Balloon: 2564668 KiB free; need 1065984; done. [2009-01-03 21:29:09 4814] DEBUG (XendCheckpoint:320) [xc_restore]: /usr/lib/xen/bin/xc_kemari_restore 15 10 2 3 1 1 1 [2009-01-03 21:29:09 4814] INFO (XendCheckpoint:466) xc_kemari_restore start: p2m_size = 100000 [2009-01-03 21:29:10 4814] INFO (XendCheckpoint:466) xc_kemari_restore: shared_info_frame: f2000 [2009-01-03 21:29:10 4814] INFO (XendCheckpoint:466) xc_map_foreign_batch: mmap failed: Cannot allocate memory [2009-01-03 21:29:10 4814] INFO (XendCheckpoint:466) ERROR Internal error: map bat...

...-09-06 21:38:16 2392] DEBUG (XendCheckpoint:286) restore:shadow=0x0, _static_max=0x7d000000, _static_min=0x0, [2010-09-06 21:38:16 2392] DEBUG (XendCheckpoint:305) [xc_restore]: /usr/lib/xen/bin/xc_restore 4 6 1 2 0 0 0 0 [2010-09-06 21:38:16 2392] INFO (XendCheckpoint:423) xc_domain_restore start: p2m_size = 7d000 [2010-09-06 21:38:16 2392] INFO (XendCheckpoint:423) Reloading memory pages: 0% [2010-09-06 21:40:24 2392] INFO (XendCheckpoint:423) ERROR Internal error: Error when reading batch size [2010-09-06 21:40:24 2392] INFO (XendCheckpoint:423) ERROR Internal error: error when buffering batch, f...

....0 and 3.3.1. Migrations will fail intermittently with messages like this on the receiving hypervisor: [2009-02-02 11:35:19 12629] DEBUG (XendCheckpoint:264) [xc_restore]: /usr/lib64/xen/bin/xc_restore 4 4 2 3 1 1 1 [2009-02-02 11:35:19 12629] INFO (XendCheckpoint:403) xc_domain_restore start: p2m_size = 100000 [2009-02-02 11:35:19 12629] INFO (XendCheckpoint:403) Reloading memory pages: 0% [2009-02-02 11:35:23 12629] INFO (XendCheckpoint:403) Received all pages (0 races) [2009-02-02 11:35:23 12629] INFO (XendCheckpoint:403) ERROR Internal error: error setting the HVM context [2009-02-02 11:...

...tl, 0, sizeof(domctl)); + domctl.domain = dom; + domctl.cmd = XEN_DOMCTL_restoredomain; + frc = do_domctl(xc_handle, &domctl); + if ( frc != 0 ) + { + ERROR("Unable to set flag of restore."); + goto out; + } if ( read_exact(io_fd, &p2m_size, sizeof(unsigned long)) ) { @@ -1120,6 +1130,8 @@ /* restore saved vcpu_info and arch specific info */ MEMCPY_FIELD(new_shared_info, old_shared_info, vcpu_info); + MEMCPY_FIELD(new_shared_info, old_shared_info, wc_nsec); + MEMCPY_FIELD(new_shared_info, old_shared_info, wc_sec...

...xend.log: DEBUG (XendCheckpoint:200) restore:shadow=0x0, _static_max=0x201, _static_min=0x201, DEBUG (balloon:145) Balloon: 29722616 KiB free; need 525312; done. DEBUG (XendCheckpoint:217) [xc_restore]: /usr/lib64/xen/bin/xc_restore 22 2 1 2 0 0 0 INFO (XendCheckpoint:353) xc_domain_restore start: p2m_size = 20900 INFO (XendCheckpoint:353) *ERROR Internal error: read extended-info signature failed* INFO (XendCheckpoint:353) Restore exit with rc=1 DEBUG (XendDomainInfo:2189) XendDomainInfo.destroy: domid=2 ERROR (XendDomainInfo:2198) XendDomainInfo.destroy: xc.domain_destroy failed. Traceback (most re...

...show the banner and the prompt until I press return. Any other key is not processed. Restore log said: [2012-01-06 08:18:27 4348] DEBUG (XendCheckpoint:305) [xc_restore]: /usr/lib/xen-4.0/bin/xc_restore 24 7 1 2 0 0 0 0 [2012-01-06 08:18:27 4348] INFO (XendCheckpoint:423) xc_domain_restore start: p2m_size = 80000 [2012-01-06 08:18:27 4348] INFO (XendCheckpoint:423) Reloading memory pages: 0% [2012-01-06 08:18:51 4348] INFO (XendCheckpoint:423) ERROR Internal error: Error when reading batch size [2012-01-06 08:18:51 4348] INFO (XendCheckpoint:423) ERROR Internal error: error when buffering batch, f...

...-04-29 09:08:05 xend 5175] DEBUG (balloon:143) Balloon: 29835376 KiB free; need 1065984; done. [2009-04-29 09:08:05 xend 5175] DEBUG (XendCheckpoint:215) [xc_restore]: /usr/lib64/xen/bin/xc_restore 23 11 2 3 1 0 0 [2009-04-29 09:08:05 xend 5175] INFO (XendCheckpoint:351) xc_domain_restore start: p2m_size = 100000 [2009-04-29 09:08:05 xend 5175] INFO (XendCheckpoint:351) Reloading memory pages: 0% _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...c_min=0x0, [2008-03-03 10:12:22 4485] DEBUG (balloon:132) Balloon: 1050692 KiB free; need 1048576; done. [2008-03-03 10:12:22 4485] DEBUG (XendCheckpoint:227) [xc_restore]: /usr/lib/xen-3.2-1/bin/xc_restore 24 2 1 2 0 0 0 [2008-03-03 10:12:22 4485] INFO (XendCheckpoint:365) xc_domain_restore start: p2m_size = 40800 [2008-03-03 10:14:34 4485] DEBUG (XendDomainInfo:1883) XendDomainInfo.destroy: domid=2 [2008-03-03 10:14:34 4485] DEBUG (XendDomainInfo:1900) XendDomainInfo.destroyDomain(2) ---- After the error, the VM list is like this : - source node : # xm list Name...

...) to 7804 MiB. [2009-01-19 16:46:30 4612] DEBUG (balloon:151) Balloon: 262948 KiB free; need 262144; done. [2009-01-19 16:46:30 4612] DEBUG (XendCheckpoint:227) [xc_restore]: /usr/lib64/xen/bin/xc_restore 5 1 1 2 0 0 0 [2009-01-19 16:46:30 4612] INFO (XendCheckpoint:365) xc_domain_restore start: p2m_size = 10800 [2009-01-19 16:46:30 4612] INFO (XendCheckpoint:365) Reloading memory pages: 0% End of logfile Regards, Jochen _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...&domctl); + if ( frc != 0 ) + { + ERROR("Unable to set flag of restore."); + goto out; + } if ( read_exact(io_fd, &p2m_size, sizeof(unsigned long)) ) { @@ -1120,6 +1130,8 @@ /* restore saved vcpu_info and arch specific info */ MEMCPY_FIELD(new_shared_info, old_shared_info, vcpu_info); +...

...21:20:58 xend 9579] DEBUG (balloon:127) Balloon: 2057212 KiB free; need 2048000; done. [2008-04-12 21:20:58 xend 9579] DEBUG (XendCheckpoint:215) [xc_restore]: /usr/lib64/xen/bin/xc_restore 19 6 1 2 0 0 0 [2008-04-12 21:21:29 xend 9579] INFO (XendCheckpoint:351) ERROR Internal error: read: p2m_size[2008-04-12 21:21:29 xend 9579] INFO (XendCheckpoint:351) Restore exit with rc=1 [2008-04-12 21:21:29 xend.XendDomainInfo 9579] DEBUG (XendDomainInfo: 1557) XendDomainInfo.destroy: domid=6 [2008-04-12 21:21:29 xend.XendDomainInfo 9579] DEBUG (XendDomainInfo: 1566) XendDomainInfo.destroyDomain(6)...