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[Qemu-devel] [Bug 1036987] [NEW] compilation error due to bug in savevm.
From: |
Evgeny Voevodin |
Subject: |
[Qemu-devel] [Bug 1036987] [NEW] compilation error due to bug in savevm.c |
Date: |
Wed, 15 Aug 2012 07:44:45 -0000 |
Public bug reported:
Since
302dfbeb21fc5154c24ca50d296e865a3778c7da
Add xbzrle_encode_buffer and xbzrle_decode_buffer functions
For performance we are encoding long word at a time.
For nzrun we use long-word-at-a-time NULL-detection tricks from strcmp():
using ((lword - 0x0101010101010101) & (~lword) & 0x8080808080808080) test
to find out if any byte in the long word is zero.
Signed-off-by: Benoit Hudzia <address@hidden>
Signed-off-by: Petter Svard <address@hidden>
Signed-off-by: Aidan Shribman <address@hidden>
Signed-off-by: Orit Wasserman <address@hidden>
Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Luiz Capitulino <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
commit arrived into master barnch, I can't compile qemu at all:
savevm.c:2476:13: error: overflow in implicit constant conversion
[-Werror=overflow]
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1036987
Title:
compilation error due to bug in savevm.c
Status in QEMU:
New
Bug description:
Since
302dfbeb21fc5154c24ca50d296e865a3778c7da
Add xbzrle_encode_buffer and xbzrle_decode_buffer functions
For performance we are encoding long word at a time.
For nzrun we use long-word-at-a-time NULL-detection tricks from strcmp():
using ((lword - 0x0101010101010101) & (~lword) & 0x8080808080808080) test
to find out if any byte in the long word is zero.
Signed-off-by: Benoit Hudzia <address@hidden>
Signed-off-by: Petter Svard <address@hidden>
Signed-off-by: Aidan Shribman <address@hidden>
Signed-off-by: Orit Wasserman <address@hidden>
Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Luiz Capitulino <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
commit arrived into master barnch, I can't compile qemu at all:
savevm.c:2476:13: error: overflow in implicit constant conversion
[-Werror=overflow]
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1036987/+subscriptions
- [Qemu-devel] [PULL 00/10] Block patches, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 01/10] qemu-char: Add MSG_CMSG_CLOEXEC flag to recvmsg, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 03/10] block: Prevent detection of /dev/fdset/ as floppy, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 02/10] qapi: Introduce add-fd, remove-fd, query-fdsets, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 04/10] block: Convert open calls to qemu_open, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 05/10] block: Convert close calls to qemu_close, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 06/10] block: Enable qemu_open/close to work with fd sets, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 07/10] monitor: Clean up fd sets on monitor disconnect, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 09/10] block: Flush parent to OS with cache=unsafe, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 10/10] qemu-iotests: Fix 030 after switch to GenericError, Kevin Wolf, 2012/08/15
- [Qemu-devel] [PATCH 08/10] iscsi: Fix NULL dereferences / races between task completion and abort, Kevin Wolf, 2012/08/15