Public bug reported:
Hi,
Internet performance for Host to Quest is low.
The speed Guest to same Guest is 11.3 Gbits/sec
The speed Host to same Host is similar (9.8-11 Gbits/sec)
But the speed from Guest to Host is slow and around 1Gbit/sec.
In the reality traffic never leave a Host. I expect
One of possible problems could be a block size. In this case I am using
ZFS with raidZ 4+1 drives. Each drive has 4Kb block. So optimal block
size is 16384 bytes. By optimizing block size it possible to improve
performance 10 folds but 9p stably provides 10 folds worse performance
than native write
>>>Can you try with security_model=passthrough?
It provides the same results, see below:
$ dd if=/dev/zero of=test count=10
10+0 records in
10+0 records out
5120 bytes (51 MB) copied, 19.8581 s, 2.6 MB/s
$ dd if=/dev/zero of=test count=10 bs=16384
10+0 records in
10+
Hi Mohan,
this parameter provide significant improvement in big file access/write:
VirtFS on /srv/shared type 9p (rw,trans=virtio,version=9p2000.L,msize=262144)
$ dd if=/dev/zero of=test count=10 bs=
I will try to test the PoC on real e100.
But this work may need some more time.
发自我的 iPhone
> 在 2015年10月20日，上午11:04，Jason Wang 写道：
>
>
>
>> On 10/17/2015 07:35 PM, Peter Maydell wrote:
>>> On 16 October 2015 at 22:37, Stefan Weil wrote:
>>> Maybe real hardware will run an endless loop?
>>>
Public bug reported:
When you tell qemu to shutdown using the "quit" monitor command, the
downscript of the tap interface is not executed.
To reproduce:
Create the test script /tmp/qemu-ifdown-test.sh :
==
#!/bin/bash
touch /tmp/is_this_working
==
Run:
==
# chmod +x /tmp/qemu-ifdown-test.s
On 2018-08-30 02:06, John Snow wrote:
>
>
> On 08/27/2018 05:30 AM, Max Reitz wrote:
>> On 2018-08-24 00:08, John Snow wrote:
>>> Presently we codify the entry point for a job as the "start" callback,
>>> but a more apt name would be "run" to
t, this is safe to
> defer the possible flushing of any nodes to the job_finalize_single
> cleanup stage.
>
> Signed-off-by: John Snow
> ---
> block/mirror.c | 29 +++--
> 1 file changed, 11 insertions(+), 18 deletions(-)
Reviewed-by: Max Reitz
ob.h | 28 +++-
> job.c | 11 ++-
> trace-events | 2 +-
> 3 files changed, 22 insertions(+), 19 deletions(-)
Reviewed-by: Max Reitz
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Description: OpenPGP digital signature
s, dropped the superfluous g_strdup() in patch 2 and applied to my
block branch:
https://git.xanclic.moe/XanClic/qemu/commits/branch/block
Max
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Description: OpenPGP digital signature
On 2018-08-31 16:24, Max Reitz wrote:
> The following changes since commit 19b599f7664b2ebfd0f405fb79c14dd241557452:
>
> Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-08-27-v2'
> into staging (2018-08-27 16:44:20 +0100)
>
> are availa
From: John Snow
Rename opaque_job to job to be consistent with other job implementations.
Rename 'job', the BackupBlockJob object, to 's' to also be consistent.
Suggested-by: Eric Blake
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-8-js.
Message-id: 20180809114417.28718-3-marcandre.lur...@redhat.com
Signed-off-by: Max Reitz
---
tests/test-bdrv-drain.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c
index 17bb8508ae..abc8bbe6f0 100644
--- a/tests/test-bdrv-drain.c
+++ b/tests
lbacks later.
As part of this clarification, change the signature to include an error
object and a return code. The error ptr is not yet used, and the return
code while captured, will be overwritten by actions in the job_completed
function.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message
From: John Snow
Now that the job infrastructure is handling the job_completed call for
all implemented jobs, we can remove the interface that allowed jobs to
schedule their own completion.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-10-js...@redhat.com
leted static to job.c and remove it from
job.h; move the documentation of return code to the .run() callback and
to the job->ret property, accordingly.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-9-js...@redhat.com
Reviewed-by: Max Reitz
Signed-off-by: Max Reitz
---
include/qe
From: Fam Zheng
If we know we've already locked the bytes, don't do it again; similarly
don't unlock a byte if we haven't locked it. This doesn't change the
behavior, but fixes a corner case explained below.
Libvirt had an error handling bug that an image can get its (ownership,
file mode, SELin
less tricky to write.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-4-js...@redhat.com
Reviewed-by: Jeff Cody
Signed-off-by: Max Reitz
---
include/qemu/job.h | 11 +++
job.c | 18 ++
2 files changed, 29 insertions(+)
flushing of any nodes to the job_finalize_single
cleanup stage.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-6-js...@redhat.com
Reviewed-by: Max Reitz
Reviewed-by: Jeff Cody
Signed-off-by: Max Reitz
---
block/mirror.c | 29 +++--
1 file changed, 11 insertions
flush.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-7-js...@redhat.com
Signed-off-by: Max Reitz
---
block/backup.c| 16
block/create.c| 14 +++---
block/stream.c| 22 +++---
tests
implications for bjob->blk which will now be put down
after this cleanup.
Kevin highlights that we did not take any permissions for that backend
at job creation time, so it is safe to reorder these operations.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-5
Message-id: 20180809114417.28718-3-marcandre.lur...@redhat.com
Signed-off-by: Max Reitz
---
tests/test-bdrv-drain.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c
index 17bb8508ae..abc8bbe6f0 100644
--- a/tests/test-bdrv-drain.c
+++ b/tests
lbacks later.
As part of this clarification, change the signature to include an error
object and a return code. The error ptr is not yet used, and the return
code while captured, will be overwritten by actions in the job_completed
function.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message
be removed shortly in a separate patch.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-3-js...@redhat.com
[mreitz: Dropped a superfluous g_strdup()]
Reviewed-by: Eric Blake
Signed-off-by: Max Reitz
---
include/qemu/job.h| 14 --
block/backup.c|
The following changes since commit 19b599f7664b2ebfd0f405fb79c14dd241557452:
Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-08-27-v2'
into staging (2018-08-27 16:44:20 +0100)
are available in the Git repository at:
https://git.xanclic.moe/XanClic/qemu.git tags/pull-block-
From: John Snow
Rename opaque_job to job to be consistent with other job implementations.
Rename 'job', the BackupBlockJob object, to 's' to also be consistent.
Suggested-by: Eric Blake
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-8-js.
implications for bjob->blk which will now be put down
after this cleanup.
Kevin highlights that we did not take any permissions for that backend
at job creation time, so it is safe to reorder these operations.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-5
flushing of any nodes to the job_finalize_single
cleanup stage.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-6-js...@redhat.com
Reviewed-by: Max Reitz
Reviewed-by: Jeff Cody
Signed-off-by: Max Reitz
---
block/mirror.c | 29 +++--
1 file changed, 11 insertions
The following changes since commit 19b599f7664b2ebfd0f405fb79c14dd241557452:
Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-08-27-v2'
into staging (2018-08-27 16:44:20 +0100)
are available in the Git repository at:
https://git.xanclic.moe/XanClic/qemu.git tags/pull-block-
be removed shortly in a separate patch.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-3-js...@redhat.com
[mreitz: Dropped a superfluous g_strdup()]
Reviewed-by: Eric Blake
Signed-off-by: Max Reitz
---
include/qemu/job.h| 14 --
block/backup.c|
leted static to job.c and remove it from
job.h; move the documentation of return code to the .run() callback and
to the job->ret property, accordingly.
Signed-off-by: John Snow
Message-id: 20180830015734.19765-9-js...@redhat.com
Reviewed-by: Max Reitz
Signed-off-by: Max Reitz
---
include/qe
less tricky to write.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-4-js...@redhat.com
Reviewed-by: Jeff Cody
Signed-off-by: Max Reitz
---
include/qemu/job.h | 11 +++
job.c | 18 ++
2 files changed, 29 insertions(+)
flush.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-7-js...@redhat.com
Signed-off-by: Max Reitz
---
block/backup.c| 16
block/create.c| 14 +++---
block/stream.c| 22 +++---
tests
From: John Snow
Now that the job infrastructure is handling the job_completed call for
all implemented jobs, we can remove the interface that allowed jobs to
schedule their own completion.
Signed-off-by: John Snow
Reviewed-by: Max Reitz
Message-id: 20180830015734.19765-10-js...@redhat.com
Not all CPU configurations may have enough space for handler code
between exception/interrupt vectors. Leave jumps to the handlers at the
vectors, but move all handlers past the vectors area.
Signed-off-by: Max Filippov
---
tests/tcg/xtensa/linker.ld.S | 37
exceptions are generated.
Max Filippov (2):
tests/tcg/xtensa: move exception handlers to separate section
tests/tcg/xtensa: only generate defined exception handlers
tests/tcg/xtensa/linker.ld.S | 37 ++---
tests/tcg/xtensa/vectors.S | 16
2 files
Don't generate handlers for IRQ levels that are not defined for the CPU
or for window overflow/underflow exceptions for configs w/o windowed
registers.
Signed-off-by: Max Filippov
---
tests/tcg/xtensa/vectors.S | 16
1 file changed, 16 insertions(+)
diff --git a/test
READY cancel, s->should_complete is 0 (which
makes sense, because all the rest in this path is about replacing
to_replace by target_bs, which we don't want to do on cancel), so this
would not be executed.
However, I think we do want to give the target the correct backing chain
when the
vital code in assert(), as NDEBUG would make that
code disappear. As far as I know, we have decided (at some point) not
to ever enable NDEBUG in qemu, but, you know. Doing it right only costs
one more line, and it would get you a
Reviewed-by: Max Reitz
> }
>
> static void mirror_throttle(MirrorBlockJob *s)
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On 2018-09-01 00:28, John Snow wrote:
> Signed-off-by: John Snow
> Reviewed-by: Max Reitz
> ---
> block/stream.c | 23 +++
> 1 file changed, 15 insertions(+), 8 deletions(-)
You forgot to fix the commit title. ;-)
Max
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On 2018-09-01 00:29, John Snow wrote:
> The exit callback in this test actually only performs cleanup.
>
> Signed-off-by: John Snow
> ---
> tests/test-blockjob-txn.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Max Reitz
signature.asc
De
g. it happens when running libstdc++ testsuite for xtensa
target on x86_64 host.
Don't call host setrlimit for memory-related resources when running
32-bit guest on 64-bit host.
Signed-off-by: Max Filippov
---
linux-user/syscall.c | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
On Tue, Sep 4, 2018 at 2:13 PM, Peter Maydell wrote:
> On 4 September 2018 at 22:00, Max Filippov wrote:
>> When running 32-bit guest on 64-bit host setrlimit guest calls that
>> affect memory resources (RLIMIT_{AS,DATA,STACK}) don't always make sense
>> as is. They
On Tue, Sep 4, 2018 at 3:10 PM, Peter Maydell wrote:
> On 4 September 2018 at 23:02, Max Filippov wrote:
>> On Tue, Sep 4, 2018 at 2:13 PM, Peter Maydell
>> wrote:
>>> I think the issue here is not related to 32-on-64 but to the fact
>>> that we just pass th
On Tue, Sep 4, 2018 at 3:55 PM, Peter Maydell wrote:
> On 4 September 2018 at 23:26, Max Filippov wrote:
>> On Tue, Sep 4, 2018 at 3:10 PM, Peter Maydell
>> wrote:
>>> On 4 September 2018 at 23:02, Max Filippov wrote:
>
>>> You could make a case for al
code.
Max Filippov (15):
target/xtensa: extract test for an illegal instruction
target/xtensa: extract test for privileged instruction
target/xtensa: extract test for syscall instruction
target/xtensa: extract test for debug exception
target/xtensa: extract test for window overflow
- mark break and break.n instructions;
- collect debug cause bits from parameter 0 of instructions marked for
debug exception;
- put debug exception check right after syscall check;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 23 +--
1 file changed, 13
- mark privileged instructions;
- put single privileged instruction check after disassembly loop;
- translate_[di]cache: drop parameter 0, shift parameters one down;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 387 +++---
1 file changed
- mark syscall instruction;
- put syscall exception check right after privileged exception check;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 13 ++---
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
results in local array;
Signed-off-by: Max Filippov
---
target/xtensa/cpu.h | 27 +++-
target/xtensa/helper.c| 6 +
target/xtensa/helper.h| 1 +
target/xtensa/op_helper.c | 72 +
target/xtensa/translate.c | 367 +-
5 files
- mark retw and retw.n instructions;
- extract window inderflow test from retw helper;
- put underflow exception check generation right after the overflow
check;
Signed-off-by: Max Filippov
---
target/xtensa/helper.h| 1 +
target/xtensa/op_helper.c | 24 +++-
target
- mark movsp instruction;
- put test for alloca exception right after the test for window
underflow;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 11 ---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
disabled exception after the alloca test;
Signed-off-by: Max Filippov
---
target/xtensa/cpu.h | 1 +
target/xtensa/translate.c | 230 --
2 files changed, 123 insertions(+), 108 deletions(-)
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index
Currently we only end TB in icount mode, because access to CCOUNT or
write to CCOMPARE are IO operations. Simplify the behaviour a bit and
end TB unconditionally.
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 13 +
1 file changed, 5 insertions(+), 8 deletions(-)
diff
- mark quos/quou/rems/remu instructions;
- drop parameter 0 from the translate_quou and split translate_remu from
it;
- put test for division by zero exception right after the coprocessor
exception test;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 53
completely, so
if that variant has better chances for positive review I'll gladly send it.
--
Thanks.
-- Max
Opcode decoding with libisa takes care about range of valid group SRs,
like CCOMPARE, IBREAKA, DBREAKA or DBREAKC. Turn range checks in wsr
implementations into assertions.
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 65 +--
1 file
- mark all instructions that exit TB and require dynamic search for the
next TB;
- put TB termination right after the instruction translation loop;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 67 ---
1 file changed, 28 insertions
- mark instructions that require TB termination via slot 0;
- put TB termination right after the instruction translation loop, if
termination w/o TB linking wasn't requested;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 83 ---
1
Now that all logic for TB termination is extracted from rsr/wsr their
return value is not used and may be dropped.
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 102 --
1 file changed, 36 insertions(+), 66 deletions(-)
diff --git a
- mark instructions that affect active IRQ level;
- put call for gen_check_interrupts right after the instruction
translation; when FLIX is enabled it will need to appear before
other exits from the TB as well;
Signed-off-by: Max Filippov
---
target/xtensa/translate.c | 78
b has not yet failed;
>>> and abort can be called after prepare.
>>>
>>> complete -> prepare -> abort -> clean
>>> complete -> abort -> clean
>>>
>>> Signed-off-by: John Snow
>>> Reviewed-by: Max Reitz
>>> ---
&
Sure, it makes sense, but why is
it in this patch now? :-)
(Moving it into the next patch would make more sense, I think.)
I'd like to give an R-b anyway, but I know that I shouldn't, so I won't.
Max
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; 1 file changed, 27 insertions(+), 7 deletions(-)
Reviewed-by: Max Reitz
(Although I believe the ?: hunk from the previous patch should be here.
Also note that we have a couple of places that make use of the GNU
extension for "?:" as a binary operator (as in "x ?: y" return
On 2018-09-04 19:09, John Snow wrote:
> The exit callback in this test actually only performs cleanup.
>
> Signed-off-by: John Snow
> ---
> tests/test-blockjob-txn.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Max Reitz
signature.asc
De
On 2018-09-05 12:49, Kevin Wolf wrote:
> Am 05.09.2018 um 12:27 hat Max Reitz geschrieben:
>> On 2018-09-04 22:32, John Snow wrote:
>>>
>>>
>>> On 09/04/2018 02:46 PM, Jeff Cody wrote:
>>>> On Tue, Sep 04, 2018 at 01:09:19PM -0400, John Snow wrote:
&
On 2018-09-05 13:53, Kevin Wolf wrote:
> Am 05.09.2018 um 13:37 hat Max Reitz geschrieben:
>> On 2018-09-05 12:49, Kevin Wolf wrote:
>>> Am 05.09.2018 um 12:27 hat Max Reitz geschrieben:
>>>> On 2018-09-04 22:32, John Snow wrote:
>>>>>
>>>>&
block_stream hd2 0 hd0.qcow2
>
> Now hd0 is the backing file of hd2, but hd2's options QDicts still
> contain backing=hd1.
>
> Signed-off-by: Alberto Garcia
> ---
> block.c | 13 -
> 1 file changed, 12 insertions(+), 1 deletion(-)
Reviewed-by: Max Reitz
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>{options,explicit_options} after the reopening has been completed.
>
> Signed-off-by: Alberto Garcia
> ---
> block.c | 18 ++
> 1 file changed, 18 insertions(+)
Reviewed-by: Max Reitz
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BDRV_OPT_CACHE_DIRECT and BDRV_OPT_READ_ONLY
> from going back to the QDict.
>
> Signed-off-by: Alberto Garcia
> ---
> block.c | 22 +++---
> 1 file changed, 7 insertions(+), 15 deletions(-)
Reviewed-by: Max Reitz
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eturn an error if the user tries to
> change any of them.
>
> Signed-off-by: Alberto Garcia
> ---
> block/file-posix.c | 9 +++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
Reviewed-by: Max Reitz
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discard=on"
>Cannot change the option 'discard'
>
> Since there's no reason why we shouldn't allow changing it and the
> implementation is simple let's just do it.
>
> Signed-off-by: Alberto Garcia
> Cc: Max Reitz
> ---
> block.c |
en -o detect-zeroes=on"
>Cannot change the option 'detect-zeroes'
>
> Since there's no reason why we shouldn't allow changing it and the
> implementation is simple let's just do it.
>
>
er this patch the above reopen call will
> still return an error -although a different one- if the image is not
> read-only:
>
>(qemu) qemu-io virtio0 "reopen -o force-share=on"
>force-share=on can only be used with read-only images
>
> Signed-off-by: Alberto
libstdc++ testsuite for xtensa
target on x86_64 host.
Don't call host setrlimit for memory-related resources.
Signed-off-by: Max Filippov
---
Changes v1->v2:
- don't limit change to 32-bit guest on 64-bit host case
linux-user/syscall.c | 8 +++-
1 file changed, 7 insertions(+
On 2018-09-05 16:22, Alberto Garcia wrote:
> On Thu 09 Aug 2018 11:35:01 PM CEST, Max Reitz wrote:
>> If the backing file is overridden, this most probably does change the
>> guest-visible data of a BDS. Therefore, we will need to consider this
>> in bdrv_refresh_filename().
On 2018-09-05 16:44, Alberto Garcia wrote:
> On Thu 09 Aug 2018 11:35:28 PM CEST, Max Reitz wrote:
>> +vm.shutdown()
>> +
>> +#assert top_name[:5] == 'json:'
>> +#top_options = json.loads(top_name[5:])
>> +
>> +#if fi
On 2018-09-05 17:39, John Snow wrote:
>
>
> On 09/05/2018 06:40 AM, Max Reitz wrote:
>> On 2018-09-04 19:09, John Snow wrote:
>>> In cases where we abort the block/mirror job, there's no point in
>>> installing the new backing chain before we finish abort
On 2018-09-07 14:28, Alberto Garcia wrote:
> On Fri 07 Sep 2018 01:32:58 PM CEST, Max Reitz wrote:
>> On 2018-09-05 16:22, Alberto Garcia wrote:
>>> On Thu 09 Aug 2018 11:35:01 PM CEST, Max Reitz wrote:
>>>> If the backing file is overridden, this most probably does
-> clean
>
> During refactor, a potential problem with bdrv_drop_intermediate
> was identified, The patched behavior is no worse than the pre-patch
(s/T/t/)
(Max)
> behavior, so leave a FIXME for now to be fixed in a future patch.
>
> Signed-off-by: John Snow
On 2018-09-06 15:02, John Snow wrote:
> In cases where we abort the block/mirror job, there's no point in
> installing the new backing chain before we finish aborting.
>
> Signed-off-by: John Snow
> ---
> block/mirror.c | 2 +-
> 1 file changed, 1 insertion(+), 1 del
d mirror_exit(Job *job)
>
> /**
> * mirror_exit_common: handle both abort() and prepare() cases.
> * for .prepare, returns 0 on success and -errno on failure.
> * for .abort cases, denoted by abort = true, MUST return 0.
> */
Any case:
Reviewed-by: Max Reitz
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at that time.
>
> Signed-off-by: John Snow
> ---
> blockdev.c | 8 +++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
Reviewed-by: Max Reitz
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the
mirror_exit() comment you proposed in patch 6, and applied to my block
branch:
https://git.xanclic.moe/XanClic/qemu/commits/branch/block
Max
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Complete xtensa-semi chardev console implementation: allow reading input
characters from file descriptor 0 and call sys_select_one simcall on it.
Signed-off-by: Max Filippov
---
target/xtensa/xtensa-semi.c | 55 ++---
1 file changed, 52 insertions(+), 3
On 10.09.18 17:18, Kevin Wolf wrote:
> Am 09.08.2018 um 23:34 hat Max Reitz geschrieben:
>> Once more, I’ll spare both me and you another iteration of the cover
>> letter, so see here:
>>
>> http://lists.nongnu.org/archive/html/qemu-block/2017-09/msg01030.html
>>
&
Complete xtensa-semi chardev console implementation: allow reading input
characters from file descriptor 0 and call sys_select_one simcall on it.
Signed-off-by: Max Filippov
---
Changes v1->v2:
- put CharBackend and input buffer into the XtensaSimConsole structure
target/xtensa/xtensa-sem
s32c1i must load and store value with target endianness, not host.
This results in an infinite loop in atomic cmpxchg sequences when target
endianness doesn't match host endianness.
Fixes: 9fb40342d4b3 ("target/xtensa: support MTTCG")
Cc: qemu-sta...@nongnu.org
Signed-off-b
tains 3s from 2M to 3M;
img.003 contains 4s from 0M to 1M (the range of img.000))
In that case, rebase -u might be what you want, so the following should
work (although it can easily corrupt your data if it isn't the case[1]):
$ qemu-img rebase -u -b img.000 img.003
$ qemu-img commit img.003
(And
d=on"
>Cannot change the option 'discard'
>
> Since there's no reason why we shouldn't allow changing it and the
> implementation is simple let's just do it.
>
> Signed-off-by: Alberto Garcia
> ---
> block.c | 11 +++
> 1 f
| 64
> ---
> include/block/block.h | 1 +
> 2 files changed, 41 insertions(+), 24 deletions(-)
Reviewed-by: Max Reitz
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oved the first aio_context_acquire(), the other fix removed
> the other one. Now we have a bug again and the code is run without any
> locking.
>
> Add it back in one of the places.
>
> Signed-off-by: Kevin Wolf
> ---
> job.c | 4
> 1 file changed, 4 insertions(+)
R
> threads.
>
> Signed-off-by: Kevin Wolf
> Reviewed-by: Fam Zheng
> ---
> include/block/blockjob.h | 13 +
> include/qemu/job.h | 3 +++
> blockjob.c | 18 ++
> job.c| 7 +++
>
ed-off-by: Kevin Wolf
> Reviewed-by: Fam Zheng
> ---
> job.c | 14 ++
> 1 file changed, 6 insertions(+), 8 deletions(-)
Reviewed-by: Max Reitz
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> 3 files changed, 25 insertions(+)
I suppose the coroutine lock you mean is the one aio_co_enter() takes?
If so:
Reviewed-by: Max Reitz
(Sorry, I still really don't have much understanding of how coroutines,
bottom halves, and all nice things like them work.)
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new requests.
>
> Signed-off-by: Kevin Wolf
> Reviewed-by: Fam Zheng
> ---
> block/block-backend.c | 9 +
> 1 file changed, 9 insertions(+)
Reviewed-by: Max Reitz
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On 13.09.18 19:05, Eric Blake wrote:
> [adding Markus, because of an interesting observation about --image-opts
> vs. JSON null - search for [1] below]
>
> On 9/13/18 8:22 AM, Max Reitz wrote:
>> On 13.09.18 05:33, lampahome wrote:
>>> I split data to 3 chunks and save
On 13.09.18 20:37, Max Reitz wrote:
[...]
> Or, we would have to use backing=null, but for some reason that doesn't
> work. I'll have to investigate.
Turns out this was fixed in e59a0cf17b1b9932b65e6fc25d6856976f5e4831.
(Why does Fedora still have only qemu 2.11?)
> So reb
+++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
Reviewed-by: Max Reitz
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On 13.09.18 22:01, Eric Blake wrote:
> On 9/13/18 1:37 PM, Max Reitz wrote:
>> On 13.09.18 19:05, Eric Blake wrote:
[...]
>>> $ qemu-io -c 'discard 0 1m' --image-opts
>>> driver=qcow2,backing=,file.driver=file,file.filename=img.003
>>> warning: Us
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