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Re: [PATCH v2 4/7] colo: fixed 'Segmentation fault' when the simplex mod
From: |
Juan Quintela |
Subject: |
Re: [PATCH v2 4/7] colo: fixed 'Segmentation fault' when the simplex mode PVM poweroff |
Date: |
Tue, 02 Nov 2021 17:03:22 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) |
"Rao, Lei" <lei.rao@intel.com> wrote:
> From: "Rao, Lei" <lei.rao@intel.com>
>
> The GDB statck is as follows:
> Program terminated with signal SIGSEGV, Segmentation fault.
> 0 object_class_dynamic_cast (class=0x55c8f5d2bf50, typename=0x55c8f2f7379e
> "qio-channel") at qom/object.c:832
> if (type->class->interfaces &&
> [Current thread is 1 (Thread 0x7f756e97eb00 (LWP 1811577))]
> (gdb) bt
> 0 object_class_dynamic_cast (class=0x55c8f5d2bf50, typename=0x55c8f2f7379e
> "qio-channel") at qom/object.c:832
> 1 0x000055c8f2c3dd14 in object_dynamic_cast (obj=0x55c8f543ac00,
> typename=0x55c8f2f7379e "qio-channel") at qom/object.c:763
> 2 0x000055c8f2c3ddce in object_dynamic_cast_assert (obj=0x55c8f543ac00,
> typename=0x55c8f2f7379e "qio-channel",
> file=0x55c8f2f73780 "migration/qemu-file-channel.c", line=117,
> func=0x55c8f2f73800 <__func__.18724> "channel_shutdown") at qom/object.c:786
> 3 0x000055c8f2bbc6ac in channel_shutdown (opaque=0x55c8f543ac00, rd=true,
> wr=true, errp=0x0) at migration/qemu-file-channel.c:117
> 4 0x000055c8f2bba56e in qemu_file_shutdown (f=0x7f7558070f50) at
> migration/qemu-file.c:67
> 5 0x000055c8f2ba5373 in migrate_fd_cancel (s=0x55c8f4ccf3f0) at
> migration/migration.c:1699
> 6 0x000055c8f2ba1992 in migration_shutdown () at migration/migration.c:187
> 7 0x000055c8f29a5b77 in main (argc=69, argv=0x7fff3e9e8c08,
> envp=0x7fff3e9e8e38) at vl.c:4512
>
> The root cause is that we still want to shutdown the from_dst_file in
> migrate_fd_cancel() after qemu_close in colo_process_checkpoint().
> So, we should set the s->rp_state.from_dst_file = NULL after
> qemu_close().
>
> Signed-off-by: Lei Rao <lei.rao@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
queued
- [PATCH v2 0/7] Fixed some bugs and optimized some codes for COLO, Rao, Lei, 2021/11/01
- [PATCH v2 1/7] Some minor optimizations for COLO, Rao, Lei, 2021/11/01
- [PATCH v2 2/7] Fixed qemu crash when guest power off in COLO mode, Rao, Lei, 2021/11/01
- [PATCH v2 4/7] colo: fixed 'Segmentation fault' when the simplex mode PVM poweroff, Rao, Lei, 2021/11/01
- Re: [PATCH v2 4/7] colo: fixed 'Segmentation fault' when the simplex mode PVM poweroff,
Juan Quintela <=
- [PATCH v2 3/7] Fixed SVM hang when do failover before PVM crash, Rao, Lei, 2021/11/01
- [PATCH v2 5/7] Removed the qemu_fclose() in colo_process_incoming_thread, Rao, Lei, 2021/11/01
- [PATCH v2 6/7] Changed the last-mode to none of first start COLO, Rao, Lei, 2021/11/01
- [PATCH v2 7/7] Optimized the function of fill_connection_key., Rao, Lei, 2021/11/01