[PATCH v2 0/3] migration-qtest: zero the first byte of each page on start

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* [PATCH v2 0/3] migration-qtest: zero the first byte of each page on start
@ 2023-09-19 10:23 Daniil Tatianin
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
                   ` (2 more replies)
  0 siblings, 3 replies; 11+ messages in thread
From: Daniil Tatianin @ 2023-09-19 10:23 UTC (permalink / raw)
  To: Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x, Daniil Tatianin

This series fixes an issue where the outcome of the migration qtest
relies on the initial memory contents all being the same across the
first 100MiB of RAM, which is a very fragile invariant.
 
We fix this by making sure we zero the first byte of every testable page
in range beforehand.

Changes since v1:
- Add a fix for the s390x test binary as well as suggested by Peter Xu

Daniil Tatianin (3):
  i386/a-b-bootblock: factor test memory addresses out into constants
  i386/a-b-bootblock: zero the first byte of each page on start
  s390x/a-b-bios: zero the first byte of each page on start

 tests/migration/i386/a-b-bootblock.S |  18 +-
 tests/migration/i386/a-b-bootblock.h |  16 +-
 tests/migration/s390x/a-b-bios.c     |   8 +
 tests/migration/s390x/a-b-bios.h     | 380 ++++++++++++++-------------
 4 files changed, 234 insertions(+), 188 deletions(-)

-- 
2.34.1



^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants
  2023-09-19 10:23 [PATCH v2 0/3] migration-qtest: zero the first byte of each page on start Daniil Tatianin
@ 2023-09-19 10:23 ` Daniil Tatianin
  2023-09-26 21:22   ` Vladimir Sementsov-Ogievskiy
                     ` (2 more replies)
  2023-09-19 10:23 ` [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start Daniil Tatianin
  2023-09-19 10:23 ` [PATCH v2 3/3] s390x/a-b-bios: " Daniil Tatianin
  2 siblings, 3 replies; 11+ messages in thread
From: Daniil Tatianin @ 2023-09-19 10:23 UTC (permalink / raw)
  To: Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x, Daniil Tatianin

So that we have less magic numbers to deal with. This also allows us to
reuse these in the following commits.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
 tests/migration/i386/a-b-bootblock.S | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tests/migration/i386/a-b-bootblock.S b/tests/migration/i386/a-b-bootblock.S
index 3d464c7568..036216e4a7 100644
--- a/tests/migration/i386/a-b-bootblock.S
+++ b/tests/migration/i386/a-b-bootblock.S
@@ -34,6 +34,10 @@ start:             # at 0x7c00 ?
         mov $16,%eax
         mov %eax,%ds
 
+# Start from 1MB
+.set TEST_MEM_START, (1024*1024)
+.set TEST_MEM_END, (100*1024*1024)
+
         mov $65,%ax
         mov $0x3f8,%dx
         outb %al,%dx
@@ -41,12 +45,11 @@ start:             # at 0x7c00 ?
         # bl keeps a counter so we limit the output speed
         mov $0, %bl
 mainloop:
-        # Start from 1MB
-        mov $(1024*1024),%eax
+        mov $TEST_MEM_START,%eax
 innerloop:
         incb (%eax)
         add $4096,%eax
-        cmp $(100*1024*1024),%eax
+        cmp $TEST_MEM_END,%eax
         jl innerloop
 
         inc %bl
-- 
2.34.1



^ permalink raw reply related	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
@ 2023-09-26 21:22   ` Vladimir Sementsov-Ogievskiy
  2023-10-02  7:24   ` Daniil Tatianin
  2023-10-04  8:50   ` Juan Quintela
  2 siblings, 0 replies; 11+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2023-09-26 21:22 UTC (permalink / raw)
  To: Daniil Tatianin, Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

On 19.09.23 13:23, Daniil Tatianin wrote:
> So that we have less magic numbers to deal with. This also allows us to
> reuse these in the following commits.
> 
> Signed-off-by: Daniil Tatianin<d-tatianin@yandex-team.ru>
> Reviewed-by: Peter Xu<peterx@redhat.com>


Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

-- 
Best regards,
Vladimir



^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
  2023-09-26 21:22   ` Vladimir Sementsov-Ogievskiy
@ 2023-10-02  7:24   ` Daniil Tatianin
  2023-10-04  8:50   ` Juan Quintela
  2 siblings, 0 replies; 11+ messages in thread
From: Daniil Tatianin @ 2023-10-02  7:24 UTC (permalink / raw)
  To: Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel@nongnu.org,
	qemu-s390x@nongnu.org

[-- Attachment #1: Type: text/html, Size: 1737 bytes --]

^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
  2023-09-26 21:22   ` Vladimir Sementsov-Ogievskiy
  2023-10-02  7:24   ` Daniil Tatianin
@ 2023-10-04  8:50   ` Juan Quintela
  2 siblings, 0 replies; 11+ messages in thread
From: Juan Quintela @ 2023-10-04  8:50 UTC (permalink / raw)
  To: Daniil Tatianin; +Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

Daniil Tatianin <d-tatianin@yandex-team.ru> wrote:
> So that we have less magic numbers to deal with. This also allows us to
> reuse these in the following commits.
>
> Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
> Reviewed-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Juan Quintela <quintela@redhat.com>

queued.



^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start
  2023-09-19 10:23 [PATCH v2 0/3] migration-qtest: zero the first byte of each page on start Daniil Tatianin
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
@ 2023-09-19 10:23 ` Daniil Tatianin
  2023-09-26 21:23   ` Vladimir Sementsov-Ogievskiy
  2023-10-04  8:53   ` Juan Quintela
  2023-09-19 10:23 ` [PATCH v2 3/3] s390x/a-b-bios: " Daniil Tatianin
  2 siblings, 2 replies; 11+ messages in thread
From: Daniil Tatianin @ 2023-09-19 10:23 UTC (permalink / raw)
  To: Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x, Daniil Tatianin

The migration qtest all the way up to this point used to work by sheer
luck relying on the contents of all pages from 1MiB to 100MiB to contain
the same one value in the first byte initially.

This easily breaks if we reduce the amount of RAM for the test instances
from 150MiB to e.g 110MiB since that makes SeaBIOS dirty some of the
pages starting at about 0x5dd2000 (~93 MiB) as it reuses those for the
HighMemory allocator since commit dc88f9b72df ("malloc: use large
ZoneHigh when there is enough memory").

This would result in the following errors:
    12/60 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test                 ERROR           2.74s   killed by signal 6 SIGABRT
    stderr:
    Memory content inconsistency at 5dd2000 first_byte = cc last_byte = cb current = 9e hit_edge = 1
    Memory content inconsistency at 5dd3000 first_byte = cc last_byte = cb current = 89 hit_edge = 1
    Memory content inconsistency at 5dd4000 first_byte = cc last_byte = cb current = 23 hit_edge = 1
    Memory content inconsistency at 5dd5000 first_byte = cc last_byte = cb current = 31 hit_edge = 1
    Memory content inconsistency at 5dd6000 first_byte = cc last_byte = cb current = 70 hit_edge = 1
    Memory content inconsistency at 5dd7000 first_byte = cc last_byte = cb current = ff hit_edge = 1
    Memory content inconsistency at 5dd8000 first_byte = cc last_byte = cb current = 54 hit_edge = 1
    Memory content inconsistency at 5dd9000 first_byte = cc last_byte = cb current = 64 hit_edge = 1
    Memory content inconsistency at 5dda000 first_byte = cc last_byte = cb current = 1d hit_edge = 1
    Memory content inconsistency at 5ddb000 first_byte = cc last_byte = cb current = 1a hit_edge = 1
    and in another 26 pages**
    ERROR:../tests/qtest/migration-test.c:300:check_guests_ram: assertion failed: (bad == 0)

Fix this by always zeroing the first byte of each page in the range so
that we get consistent results no matter the initial contents.

Fixes: ea0c6d62391 ("test: Postcopy")
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
 tests/migration/i386/a-b-bootblock.S |  9 +++++++++
 tests/migration/i386/a-b-bootblock.h | 16 ++++++++--------
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/tests/migration/i386/a-b-bootblock.S b/tests/migration/i386/a-b-bootblock.S
index 036216e4a7..6bb9999d60 100644
--- a/tests/migration/i386/a-b-bootblock.S
+++ b/tests/migration/i386/a-b-bootblock.S
@@ -44,6 +44,15 @@ start:             # at 0x7c00 ?
 
         # bl keeps a counter so we limit the output speed
         mov $0, %bl
+
+pre_zero:
+        mov $TEST_MEM_START,%eax
+do_zero:
+        movb $0, (%eax)
+        add $4096,%eax
+        cmp $TEST_MEM_END,%eax
+        jl do_zero
+
 mainloop:
         mov $TEST_MEM_START,%eax
 innerloop:
diff --git a/tests/migration/i386/a-b-bootblock.h b/tests/migration/i386/a-b-bootblock.h
index b7b0fce2ee..5b523917ce 100644
--- a/tests/migration/i386/a-b-bootblock.h
+++ b/tests/migration/i386/a-b-bootblock.h
@@ -4,18 +4,18 @@
  * the header and the assembler differences in your patch submission.
  */
 unsigned char x86_bootsect[] = {
-  0xfa, 0x0f, 0x01, 0x16, 0x78, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
+  0xfa, 0x0f, 0x01, 0x16, 0x8c, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
   0x0f, 0x22, 0xc0, 0x66, 0xea, 0x20, 0x7c, 0x00, 0x00, 0x08, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe4, 0x92, 0x0c, 0x02,
   0xe6, 0x92, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x8e, 0xd8, 0x66, 0xb8, 0x41,
   0x00, 0x66, 0xba, 0xf8, 0x03, 0xee, 0xb3, 0x00, 0xb8, 0x00, 0x00, 0x10,
-  0x00, 0xfe, 0x00, 0x05, 0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00, 0x40,
-  0x06, 0x7c, 0xf2, 0xfe, 0xc3, 0x80, 0xe3, 0x3f, 0x75, 0xe6, 0x66, 0xb8,
-  0x42, 0x00, 0x66, 0xba, 0xf8, 0x03, 0xee, 0xeb, 0xdb, 0x8d, 0x76, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00,
-  0x00, 0x9a, 0xcf, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00,
-  0x27, 0x00, 0x60, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0xc6, 0x00, 0x00, 0x05, 0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00,
+  0x40, 0x06, 0x7c, 0xf1, 0xb8, 0x00, 0x00, 0x10, 0x00, 0xfe, 0x00, 0x05,
+  0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00, 0x40, 0x06, 0x7c, 0xf2, 0xfe,
+  0xc3, 0x80, 0xe3, 0x3f, 0x75, 0xe6, 0x66, 0xb8, 0x42, 0x00, 0x66, 0xba,
+  0xf8, 0x03, 0xee, 0xeb, 0xdb, 0x8d, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00,
+  0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00, 0x27, 0x00, 0x74, 0x7c,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-- 
2.34.1



^ permalink raw reply related	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start
  2023-09-19 10:23 ` [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start Daniil Tatianin
@ 2023-09-26 21:23   ` Vladimir Sementsov-Ogievskiy
  2023-10-04  8:53   ` Juan Quintela
  1 sibling, 0 replies; 11+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2023-09-26 21:23 UTC (permalink / raw)
  To: Daniil Tatianin, Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

On 19.09.23 13:23, Daniil Tatianin wrote:
> The migration qtest all the way up to this point used to work by sheer
> luck relying on the contents of all pages from 1MiB to 100MiB to contain
> the same one value in the first byte initially.
> 
> This easily breaks if we reduce the amount of RAM for the test instances
> from 150MiB to e.g 110MiB since that makes SeaBIOS dirty some of the
> pages starting at about 0x5dd2000 (~93 MiB) as it reuses those for the
> HighMemory allocator since commit dc88f9b72df ("malloc: use large
> ZoneHigh when there is enough memory").
> 
> This would result in the following errors:
>      12/60 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test                 ERROR           2.74s   killed by signal 6 SIGABRT
>      stderr:
>      Memory content inconsistency at 5dd2000 first_byte = cc last_byte = cb current = 9e hit_edge = 1
>      Memory content inconsistency at 5dd3000 first_byte = cc last_byte = cb current = 89 hit_edge = 1
>      Memory content inconsistency at 5dd4000 first_byte = cc last_byte = cb current = 23 hit_edge = 1
>      Memory content inconsistency at 5dd5000 first_byte = cc last_byte = cb current = 31 hit_edge = 1
>      Memory content inconsistency at 5dd6000 first_byte = cc last_byte = cb current = 70 hit_edge = 1
>      Memory content inconsistency at 5dd7000 first_byte = cc last_byte = cb current = ff hit_edge = 1
>      Memory content inconsistency at 5dd8000 first_byte = cc last_byte = cb current = 54 hit_edge = 1
>      Memory content inconsistency at 5dd9000 first_byte = cc last_byte = cb current = 64 hit_edge = 1
>      Memory content inconsistency at 5dda000 first_byte = cc last_byte = cb current = 1d hit_edge = 1
>      Memory content inconsistency at 5ddb000 first_byte = cc last_byte = cb current = 1a hit_edge = 1
>      and in another 26 pages**
>      ERROR:../tests/qtest/migration-test.c:300:check_guests_ram: assertion failed: (bad == 0)
> 
> Fix this by always zeroing the first byte of each page in the range so
> that we get consistent results no matter the initial contents.
> 
> Fixes: ea0c6d62391 ("test: Postcopy")
> Signed-off-by: Daniil Tatianin<d-tatianin@yandex-team.ru>
> Reviewed-by: Peter Xu<peterx@redhat.com>


Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

-- 
Best regards,
Vladimir



^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start
  2023-09-19 10:23 ` [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start Daniil Tatianin
  2023-09-26 21:23   ` Vladimir Sementsov-Ogievskiy
@ 2023-10-04  8:53   ` Juan Quintela
  1 sibling, 0 replies; 11+ messages in thread
From: Juan Quintela @ 2023-10-04  8:53 UTC (permalink / raw)
  To: Daniil Tatianin; +Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

Daniil Tatianin <d-tatianin@yandex-team.ru> wrote:
> The migration qtest all the way up to this point used to work by sheer
> luck relying on the contents of all pages from 1MiB to 100MiB to contain
> the same one value in the first byte initially.
>
> This easily breaks if we reduce the amount of RAM for the test instances
> from 150MiB to e.g 110MiB since that makes SeaBIOS dirty some of the
> pages starting at about 0x5dd2000 (~93 MiB) as it reuses those for the
> HighMemory allocator since commit dc88f9b72df ("malloc: use large
> ZoneHigh when there is enough memory").
>
> This would result in the following errors:
>     12/60 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test                 ERROR           2.74s   killed by signal 6 SIGABRT
>     stderr:
>     Memory content inconsistency at 5dd2000 first_byte = cc last_byte = cb current = 9e hit_edge = 1
>     Memory content inconsistency at 5dd3000 first_byte = cc last_byte = cb current = 89 hit_edge = 1
>     Memory content inconsistency at 5dd4000 first_byte = cc last_byte = cb current = 23 hit_edge = 1
>     Memory content inconsistency at 5dd5000 first_byte = cc last_byte = cb current = 31 hit_edge = 1
>     Memory content inconsistency at 5dd6000 first_byte = cc last_byte = cb current = 70 hit_edge = 1
>     Memory content inconsistency at 5dd7000 first_byte = cc last_byte = cb current = ff hit_edge = 1
>     Memory content inconsistency at 5dd8000 first_byte = cc last_byte = cb current = 54 hit_edge = 1
>     Memory content inconsistency at 5dd9000 first_byte = cc last_byte = cb current = 64 hit_edge = 1
>     Memory content inconsistency at 5dda000 first_byte = cc last_byte = cb current = 1d hit_edge = 1
>     Memory content inconsistency at 5ddb000 first_byte = cc last_byte = cb current = 1a hit_edge = 1
>     and in another 26 pages**
>     ERROR:../tests/qtest/migration-test.c:300:check_guests_ram: assertion failed: (bad == 0)
>
> Fix this by always zeroing the first byte of each page in the range so
> that we get consistent results no matter the initial contents.
>
> Fixes: ea0c6d62391 ("test: Postcopy")
> Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
> Reviewed-by: Peter Xu <peterx@redhat.com>
> ---

Reviewed-by: Juan Quintela <quintela@redhat.com>

queued.



^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH v2 3/3] s390x/a-b-bios: zero the first byte of each page on start
  2023-09-19 10:23 [PATCH v2 0/3] migration-qtest: zero the first byte of each page on start Daniil Tatianin
  2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
  2023-09-19 10:23 ` [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start Daniil Tatianin
@ 2023-09-19 10:23 ` Daniil Tatianin
  2023-09-26 21:25   ` Vladimir Sementsov-Ogievskiy
  2023-10-04  8:53   ` Juan Quintela
  2 siblings, 2 replies; 11+ messages in thread
From: Daniil Tatianin @ 2023-09-19 10:23 UTC (permalink / raw)
  To: Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x, Daniil Tatianin

Same as with the x86 verison of this test, we relied on the contents of
all pages in RAM to be the same across the entire test range, which is
very fragile. Zero the first byte of each page before running the
increment loop to fix this.

Fixes: 5571dc824b ("tests/migration: Enable the migration test on s390x, too")
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
---
 tests/migration/s390x/a-b-bios.c |   8 +
 tests/migration/s390x/a-b-bios.h | 380 +++++++++++++++++--------------
 2 files changed, 211 insertions(+), 177 deletions(-)

diff --git a/tests/migration/s390x/a-b-bios.c b/tests/migration/s390x/a-b-bios.c
index a0327cd153..ff99a3ef57 100644
--- a/tests/migration/s390x/a-b-bios.c
+++ b/tests/migration/s390x/a-b-bios.c
@@ -27,6 +27,14 @@ void main(void)
     sclp_setup();
     sclp_print("A");
 
+    /*
+     * Make sure all of the pages have consistent contents before incrementing
+     * the first byte below.
+     */
+    for (addr = START_ADDRESS; addr < END_ADDRESS; addr += 4096) {
+        *(volatile char *)addr = 0;
+    }
+
     while (1) {
         for (addr = START_ADDRESS; addr < END_ADDRESS; addr += 4096) {
             *(volatile char *)addr += 1;  /* Change pages */
diff --git a/tests/migration/s390x/a-b-bios.h b/tests/migration/s390x/a-b-bios.h
index e722dc7c40..96103dadbb 100644
--- a/tests/migration/s390x/a-b-bios.h
+++ b/tests/migration/s390x/a-b-bios.h
@@ -6,10 +6,10 @@
 unsigned char s390x_elf[] = {
   0x7f, 0x45, 0x4c, 0x46, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x16, 0x00, 0x00, 0x00, 0x01,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x78, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x80,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xa8, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x80,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x38, 0x00, 0x07, 0x00, 0x40,
-  0x00, 0x0c, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x04,
+  0x00, 0x0d, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x04,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x88, 0x00, 0x00, 0x00, 0x00,
@@ -21,140 +21,154 @@ unsigned char s390x_elf[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
   0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x0c,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x0c, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xac,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xac, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x06,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x10, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x17, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0x10,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x98, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xb8, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x17, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0xb8,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x01, 0x18, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
   0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x07, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0x10,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0,
+  0x00, 0x00, 0x07, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0xb8,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0xb8, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x64, 0x74, 0xe5, 0x51,
   0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x10, 0x64, 0x74, 0xe5, 0x52, 0x00, 0x00, 0x00, 0x04,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x10, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x17, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0x10,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xb8, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x17, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0xb8,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
   0x2f, 0x6c, 0x69, 0x62, 0x2f, 0x6c, 0x64, 0x36, 0x34, 0x2e, 0x73, 0x6f,
   0x2e, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
   0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x02, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb, 0xef, 0xf0, 0x70,
-  0x00, 0x24, 0xa7, 0xfb, 0xff, 0x60, 0xc0, 0xe5, 0x00, 0x00, 0x01, 0x1f,
-  0xc0, 0x20, 0x00, 0x00, 0x02, 0x64, 0xc0, 0xe5, 0x00, 0x00, 0x01, 0x35,
-  0xa5, 0x1e, 0x00, 0x10, 0xa7, 0x29, 0x63, 0x00, 0xe3, 0x30, 0x10, 0x00,
-  0x00, 0x90, 0xa7, 0x3a, 0x00, 0x01, 0x42, 0x30, 0x10, 0x00, 0xa7, 0x1b,
-  0x10, 0x00, 0xa7, 0x27, 0xff, 0xf7, 0xc0, 0x20, 0x00, 0x00, 0x02, 0x50,
-  0xa7, 0xf4, 0xff, 0xeb, 0x07, 0x07, 0x07, 0x07, 0xc0, 0xf0, 0x00, 0x00,
-  0x56, 0xc4, 0xc0, 0x20, 0x00, 0x00, 0x0a, 0xbd, 0xc0, 0x30, 0x00, 0x00,
-  0x56, 0xbe, 0xb9, 0x0b, 0x00, 0x32, 0xb9, 0x02, 0x00, 0x33, 0xa7, 0x84,
-  0x00, 0x19, 0xa7, 0x3b, 0xff, 0xff, 0xeb, 0x43, 0x00, 0x08, 0x00, 0x0c,
-  0xb9, 0x02, 0x00, 0x44, 0xb9, 0x04, 0x00, 0x12, 0xa7, 0x84, 0x00, 0x09,
-  0xd7, 0xff, 0x10, 0x00, 0x10, 0x00, 0x41, 0x10, 0x11, 0x00, 0xa7, 0x47,
-  0xff, 0xfb, 0xc0, 0x20, 0x00, 0x00, 0x00, 0x07, 0x44, 0x30, 0x20, 0x00,
-  0xa7, 0xf4, 0xff, 0xb6, 0xd7, 0x00, 0x10, 0x00, 0x10, 0x00, 0xc0, 0x10,
-  0x00, 0x00, 0x00, 0x29, 0xb2, 0xb2, 0x10, 0x00, 0xeb, 0x00, 0xf0, 0x00,
-  0x00, 0x25, 0x96, 0x02, 0xf0, 0x06, 0xeb, 0x00, 0xf0, 0x00, 0x00, 0x2f,
-  0xc0, 0x10, 0x00, 0x00, 0x00, 0x11, 0xe3, 0x10, 0x01, 0xb8, 0x00, 0x24,
-  0xc0, 0x10, 0x00, 0x00, 0x00, 0x26, 0xd2, 0x07, 0x01, 0xb0, 0x10, 0x00,
-  0xc0, 0x10, 0x00, 0x00, 0x00, 0x18, 0xb2, 0xb2, 0x10, 0x00, 0xeb, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x02, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x03, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0xf0, 0xeb, 0xef, 0xf0, 0x70,
+  0x00, 0x24, 0xa7, 0xfb, 0xff, 0x60, 0xc0, 0xe5, 0x00, 0x00, 0x01, 0x5f,
+  0xc0, 0x20, 0x00, 0x00, 0x02, 0xa8, 0xc0, 0xe5, 0x00, 0x00, 0x01, 0x75,
+  0xa5, 0x2e, 0x00, 0x10, 0xa7, 0x19, 0x63, 0x00, 0x92, 0x00, 0x20, 0x00,
+  0xa7, 0x2b, 0x10, 0x00, 0xa7, 0x17, 0xff, 0xfc, 0xa5, 0x1e, 0x00, 0x10,
+  0xa7, 0x29, 0x63, 0x00, 0xe3, 0x30, 0x10, 0x00, 0x00, 0x90, 0xa7, 0x3a,
+  0x00, 0x01, 0x42, 0x30, 0x10, 0x00, 0xa7, 0x1b, 0x10, 0x00, 0xa7, 0x27,
+  0xff, 0xf7, 0xc0, 0x20, 0x00, 0x00, 0x02, 0x8a, 0xc0, 0xe5, 0x00, 0x00,
+  0x01, 0x56, 0xa7, 0xf4, 0xff, 0xeb, 0x07, 0x07, 0xc0, 0xf0, 0x00, 0x00,
+  0x4e, 0x5c, 0xc0, 0x20, 0x00, 0x00, 0x00, 0x7d, 0xe3, 0x20, 0x20, 0x00,
+  0x00, 0x04, 0xc0, 0x30, 0x00, 0x00, 0x96, 0xa3, 0xb9, 0x0b, 0x00, 0x32,
+  0xb9, 0x02, 0x00, 0x33, 0xa7, 0x84, 0x00, 0x19, 0xa7, 0x3b, 0xff, 0xff,
+  0xeb, 0x43, 0x00, 0x08, 0x00, 0x0c, 0xb9, 0x02, 0x00, 0x44, 0xb9, 0x04,
+  0x00, 0x12, 0xa7, 0x84, 0x00, 0x09, 0xd7, 0xff, 0x10, 0x00, 0x10, 0x00,
+  0x41, 0x10, 0x11, 0x00, 0xa7, 0x47, 0xff, 0xfb, 0xc0, 0x20, 0x00, 0x00,
+  0x00, 0x0d, 0x44, 0x30, 0x20, 0x00, 0xc0, 0x20, 0x00, 0x00, 0x00, 0x5b,
+  0xd2, 0x0f, 0x01, 0xd0, 0x20, 0x00, 0xa7, 0xf4, 0xff, 0xa1, 0xd7, 0x00,
+  0x10, 0x00, 0x10, 0x00, 0xc0, 0x10, 0x00, 0x00, 0x00, 0x50, 0xb2, 0xb2,
+  0x10, 0x00, 0xa7, 0xf4, 0x00, 0x00, 0xeb, 0x00, 0xf0, 0x00, 0x00, 0x25,
+  0x96, 0x02, 0xf0, 0x06, 0xeb, 0x00, 0xf0, 0x00, 0x00, 0x2f, 0xc0, 0x10,
+  0x00, 0x00, 0x00, 0x2a, 0xe3, 0x10, 0x01, 0xb8, 0x00, 0x24, 0xc0, 0x10,
+  0x00, 0x00, 0x00, 0x4b, 0xd2, 0x07, 0x01, 0xb0, 0x10, 0x00, 0xc0, 0x10,
+  0x00, 0x00, 0x00, 0x3d, 0xb2, 0xb2, 0x10, 0x00, 0xeb, 0x66, 0xf0, 0x00,
+  0x00, 0x25, 0x96, 0xff, 0xf0, 0x04, 0xeb, 0x66, 0xf0, 0x00, 0x00, 0x2f,
+  0xc0, 0x10, 0x00, 0x00, 0x00, 0x1a, 0xe3, 0x10, 0x01, 0xf8, 0x00, 0x24,
+  0xc0, 0x10, 0x00, 0x00, 0x00, 0x36, 0xd2, 0x07, 0x01, 0xf0, 0x10, 0x00,
+  0xc0, 0x10, 0x00, 0x00, 0x00, 0x24, 0xb2, 0xb2, 0x10, 0x00, 0xeb, 0x00,
   0xf0, 0x00, 0x00, 0x25, 0x94, 0xfd, 0xf0, 0x06, 0xeb, 0x00, 0xf0, 0x00,
-  0x00, 0x2f, 0x07, 0xfe, 0x07, 0x07, 0x07, 0x07, 0x00, 0x02, 0x00, 0x01,
+  0x00, 0x2f, 0x07, 0xfe, 0xeb, 0x66, 0xf0, 0x00, 0x00, 0x25, 0x94, 0x00,
+  0xf0, 0x04, 0xeb, 0x66, 0xf0, 0x00, 0x00, 0x2f, 0x07, 0xfe, 0x07, 0x07,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0xf0, 0x00, 0x02, 0x00, 0x01,
   0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x03, 0x02, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00,
-  0xeb, 0xbf, 0xf0, 0x58, 0x00, 0x24, 0xc0, 0x10, 0x00, 0x00, 0x0e, 0x59,
-  0xa7, 0xfb, 0xff, 0x60, 0xb2, 0x20, 0x00, 0x21, 0xb2, 0x22, 0x00, 0xb0,
-  0x88, 0xb0, 0x00, 0x1c, 0xc0, 0xe5, 0xff, 0xff, 0xff, 0xba, 0xa7, 0xbe,
-  0x00, 0x03, 0xa7, 0x84, 0x00, 0x13, 0xa7, 0xbe, 0x00, 0x02, 0xa7, 0x28,
-  0x00, 0x00, 0xa7, 0x74, 0x00, 0x04, 0xa7, 0x28, 0xff, 0xfe, 0xe3, 0x40,
-  0xf1, 0x10, 0x00, 0x04, 0xb9, 0x14, 0x00, 0x22, 0xeb, 0xbf, 0xf0, 0xf8,
-  0x00, 0x04, 0x07, 0xf4, 0xa7, 0x28, 0xff, 0xff, 0xa7, 0xf4, 0xff, 0xf5,
-  0x07, 0x07, 0x07, 0x07, 0xeb, 0xbf, 0xf0, 0x58, 0x00, 0x24, 0xc0, 0xd0,
-  0x00, 0x00, 0x01, 0x21, 0xa7, 0xfb, 0xff, 0x60, 0xa7, 0xb9, 0x00, 0x00,
-  0xa7, 0x19, 0x00, 0x00, 0xc0, 0x40, 0x00, 0x00, 0x0e, 0x24, 0xa7, 0x3b,
-  0x00, 0x01, 0xa7, 0x37, 0x00, 0x23, 0xc0, 0x20, 0x00, 0x00, 0x0e, 0x1d,
-  0x18, 0x31, 0xa7, 0x1a, 0x00, 0x06, 0x40, 0x10, 0x20, 0x08, 0xa7, 0x3a,
-  0x00, 0x0e, 0xa7, 0x18, 0x1a, 0x00, 0x40, 0x30, 0x20, 0x00, 0x92, 0x00,
-  0x20, 0x02, 0x40, 0x10, 0x20, 0x0a, 0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04,
-  0xc0, 0xe5, 0xff, 0xff, 0xff, 0xac, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04,
-  0xb9, 0x04, 0x00, 0x2b, 0xeb, 0xbf, 0xf0, 0xf8, 0x00, 0x04, 0x07, 0xf4,
-  0xb9, 0x04, 0x00, 0x51, 0xa7, 0x5b, 0x00, 0x01, 0xa7, 0x09, 0x0f, 0xf7,
-  0xb9, 0x21, 0x00, 0x50, 0xa7, 0x24, 0xff, 0xd7, 0x41, 0xeb, 0x20, 0x00,
-  0x95, 0x0a, 0xe0, 0x00, 0xa7, 0x74, 0x00, 0x08, 0x41, 0x11, 0x40, 0x0e,
-  0x92, 0x0d, 0x10, 0x00, 0xb9, 0x04, 0x00, 0x15, 0x43, 0x5b, 0x20, 0x00,
-  0x42, 0x51, 0x40, 0x0e, 0xa7, 0xbb, 0x00, 0x01, 0x41, 0x10, 0x10, 0x01,
-  0xa7, 0xf4, 0xff, 0xbf, 0xc0, 0x50, 0x00, 0x00, 0x00, 0xd4, 0xc0, 0x10,
-  0x00, 0x00, 0x0d, 0xd9, 0xa7, 0x48, 0x00, 0x1c, 0x40, 0x40, 0x10, 0x00,
-  0x50, 0x20, 0x10, 0x0c, 0xa7, 0x48, 0x00, 0x04, 0xe3, 0x20, 0x50, 0x00,
-  0x00, 0x04, 0x40, 0x40, 0x10, 0x0a, 0x50, 0x30, 0x10, 0x10, 0xc0, 0xf4,
-  0xff, 0xff, 0xff, 0x6b, 0xa7, 0x39, 0x00, 0x40, 0xa7, 0x29, 0x00, 0x00,
-  0xc0, 0xf4, 0xff, 0xff, 0xff, 0xe4, 0x07, 0x07, 0xb9, 0x04, 0x00, 0x13,
-  0xa7, 0x2a, 0xff, 0xff, 0xb9, 0x04, 0x00, 0x34, 0xa7, 0x48, 0x00, 0x01,
-  0x15, 0x24, 0xa7, 0x24, 0x00, 0x07, 0xb9, 0x04, 0x00, 0x21, 0xc0, 0xf4,
-  0xff, 0xff, 0xff, 0x7f, 0xa7, 0x29, 0xff, 0xff, 0x07, 0xfe, 0x07, 0x07,
-  0xa7, 0x39, 0x00, 0x00, 0x41, 0x13, 0x20, 0x00, 0x95, 0x00, 0x10, 0x00,
-  0xa7, 0x74, 0x00, 0x05, 0xc0, 0xf4, 0xff, 0xff, 0xff, 0x70, 0xa7, 0x3b,
-  0x00, 0x01, 0xa7, 0xf4, 0xff, 0xf5, 0x07, 0x07, 0xeb, 0xbf, 0xf0, 0x58,
-  0x00, 0x24, 0xc0, 0xd0, 0x00, 0x00, 0x00, 0x91, 0xa7, 0xfb, 0xff, 0x60,
-  0xb9, 0x04, 0x00, 0xb2, 0xa7, 0x19, 0x00, 0x20, 0xc0, 0x20, 0x00, 0x00,
-  0x0d, 0x8c, 0x92, 0x00, 0x20, 0x00, 0xa7, 0x2b, 0x00, 0x01, 0xa7, 0x17,
-  0xff, 0xfc, 0xc0, 0x10, 0x00, 0x00, 0x0d, 0x83, 0xa7, 0x28, 0x00, 0x20,
-  0x40, 0x20, 0x10, 0x00, 0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04, 0xc0, 0xe5,
-  0xff, 0xff, 0xff, 0x1d, 0x12, 0x22, 0xa7, 0x74, 0x00, 0x17, 0xa7, 0x19,
-  0x00, 0x00, 0xc0, 0x40, 0x00, 0x00, 0x00, 0x75, 0xc0, 0x50, 0x00, 0x00,
-  0x0d, 0x7a, 0xa7, 0x29, 0x00, 0x08, 0xe3, 0x31, 0x50, 0x00, 0x00, 0x90,
-  0x43, 0x33, 0x40, 0x00, 0x42, 0x31, 0xb0, 0x00, 0xa7, 0x1b, 0x00, 0x01,
-  0xa7, 0x27, 0xff, 0xf7, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04, 0xeb, 0xbf,
-  0xf0, 0xf8, 0x00, 0x04, 0x07, 0xf4, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
-  0xeb, 0xaf, 0xf0, 0x50, 0x00, 0x24, 0xc0, 0xd0, 0x00, 0x00, 0x00, 0x51,
-  0xa7, 0xfb, 0xff, 0x60, 0xa7, 0x19, 0x0f, 0xf8, 0xb9, 0x21, 0x00, 0x31,
-  0xb9, 0x04, 0x00, 0xa2, 0xa7, 0xc4, 0x00, 0x2d, 0xa7, 0xb9, 0x0f, 0xf8,
-  0xc0, 0x10, 0x00, 0x00, 0x0d, 0x42, 0xa7, 0x28, 0x10, 0x00, 0x40, 0x20,
-  0x10, 0x00, 0x92, 0x00, 0x10, 0x02, 0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04,
-  0xc0, 0xe5, 0xff, 0xff, 0xfe, 0xda, 0xa7, 0xbb, 0x00, 0x01, 0xa7, 0x19,
-  0x00, 0x00, 0xc0, 0x20, 0x00, 0x00, 0x0d, 0x2f, 0xa7, 0xb7, 0x00, 0x17,
-  0xc0, 0x10, 0x00, 0x00, 0x0d, 0x2a, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04,
-  0xe3, 0x20, 0x10, 0x08, 0x00, 0x91, 0xa7, 0x2a, 0xff, 0xf9, 0xb9, 0x14,
-  0x00, 0x22, 0xeb, 0xaf, 0xf0, 0xf0, 0x00, 0x04, 0x07, 0xf4, 0xb9, 0x04,
-  0x00, 0xb3, 0xa7, 0xf4, 0xff, 0xd5, 0x43, 0x31, 0x20, 0x0f, 0x42, 0x31,
-  0xa0, 0x00, 0xa7, 0x1b, 0x00, 0x01, 0xa7, 0xf4, 0xff, 0xe3, 0x07, 0x07,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x78, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x77, 0x00, 0x05, 0x2e, 0x2e, 0x2e, 0x2e,
+  0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0xeb, 0xbf, 0xf0, 0x58,
+  0x00, 0x24, 0xc0, 0x10, 0x00, 0x00, 0x4e, 0x0d, 0xa7, 0xfb, 0xff, 0x60,
+  0xb2, 0x20, 0x00, 0x21, 0xb2, 0x22, 0x00, 0xb0, 0x88, 0xb0, 0x00, 0x1c,
+  0xc0, 0xe5, 0xff, 0xff, 0xff, 0x91, 0xa7, 0xbe, 0x00, 0x03, 0xa7, 0x84,
+  0x00, 0x13, 0xa7, 0xbe, 0x00, 0x02, 0xa7, 0x28, 0x00, 0x00, 0xa7, 0x74,
+  0x00, 0x04, 0xa7, 0x28, 0xff, 0xfe, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04,
+  0xb9, 0x14, 0x00, 0x22, 0xeb, 0xbf, 0xf0, 0xf8, 0x00, 0x04, 0x07, 0xf4,
+  0xa7, 0x28, 0xff, 0xff, 0xa7, 0xf4, 0xff, 0xf5, 0x07, 0x07, 0x07, 0x07,
+  0xeb, 0xbf, 0xf0, 0x58, 0x00, 0x24, 0xc0, 0xd0, 0x00, 0x00, 0x01, 0x25,
+  0xa7, 0xfb, 0xff, 0x60, 0xa7, 0xb9, 0x00, 0x00, 0xa7, 0x19, 0x00, 0x00,
+  0xc0, 0x40, 0x00, 0x00, 0x4d, 0xd8, 0xa7, 0x3b, 0x00, 0x01, 0xa7, 0x37,
+  0x00, 0x23, 0xc0, 0x20, 0x00, 0x00, 0x4d, 0xd1, 0x18, 0x31, 0xa7, 0x1a,
+  0x00, 0x06, 0x40, 0x10, 0x20, 0x08, 0xa7, 0x3a, 0x00, 0x0e, 0xa7, 0x18,
+  0x1a, 0x00, 0x40, 0x30, 0x20, 0x00, 0x92, 0x00, 0x20, 0x02, 0x40, 0x10,
+  0x20, 0x0a, 0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04, 0xc0, 0xe5, 0xff, 0xff,
+  0xff, 0xac, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04, 0xb9, 0x04, 0x00, 0x2b,
+  0xeb, 0xbf, 0xf0, 0xf8, 0x00, 0x04, 0x07, 0xf4, 0xb9, 0x04, 0x00, 0x51,
+  0xa7, 0x5b, 0x00, 0x01, 0xa7, 0x09, 0x0f, 0xf7, 0xb9, 0x21, 0x00, 0x50,
+  0xa7, 0x24, 0xff, 0xd7, 0x41, 0xeb, 0x20, 0x00, 0x95, 0x0a, 0xe0, 0x00,
+  0xa7, 0x74, 0x00, 0x08, 0x41, 0x11, 0x40, 0x0e, 0x92, 0x0d, 0x10, 0x00,
+  0xb9, 0x04, 0x00, 0x15, 0x43, 0x5b, 0x20, 0x00, 0x42, 0x51, 0x40, 0x0e,
+  0xa7, 0xbb, 0x00, 0x01, 0x41, 0x10, 0x10, 0x01, 0xa7, 0xf4, 0xff, 0xbf,
+  0xc0, 0x50, 0x00, 0x00, 0x00, 0xd8, 0xc0, 0x10, 0x00, 0x00, 0x4d, 0x8d,
+  0xa7, 0x48, 0x00, 0x1c, 0x40, 0x40, 0x10, 0x00, 0x50, 0x20, 0x10, 0x0c,
+  0xa7, 0x48, 0x00, 0x04, 0xe3, 0x20, 0x50, 0x00, 0x00, 0x04, 0x40, 0x40,
+  0x10, 0x0a, 0x50, 0x30, 0x10, 0x10, 0xc0, 0xf4, 0xff, 0xff, 0xff, 0x6b,
+  0xa7, 0x39, 0x00, 0x40, 0xa7, 0x29, 0x00, 0x00, 0xc0, 0xf4, 0xff, 0xff,
+  0xff, 0xe4, 0x07, 0x07, 0xb9, 0x04, 0x00, 0x13, 0xa7, 0x2a, 0xff, 0xff,
+  0xb9, 0x04, 0x00, 0x34, 0xa7, 0x48, 0x00, 0x01, 0x15, 0x24, 0xa7, 0x24,
+  0x00, 0x07, 0xb9, 0x04, 0x00, 0x21, 0xc0, 0xf4, 0xff, 0xff, 0xff, 0x7f,
+  0xa7, 0x29, 0xff, 0xff, 0x07, 0xfe, 0x07, 0x07, 0xa7, 0x39, 0x00, 0x00,
+  0x41, 0x13, 0x20, 0x00, 0x95, 0x00, 0x10, 0x00, 0xa7, 0x74, 0x00, 0x05,
+  0xc0, 0xf4, 0xff, 0xff, 0xff, 0x70, 0xa7, 0x3b, 0x00, 0x01, 0xa7, 0xf4,
+  0xff, 0xf5, 0x07, 0x07, 0xeb, 0xbf, 0xf0, 0x58, 0x00, 0x24, 0xc0, 0xd0,
+  0x00, 0x00, 0x00, 0x95, 0xa7, 0xfb, 0xff, 0x60, 0xb9, 0x04, 0x00, 0xb2,
+  0xa7, 0x19, 0x00, 0x20, 0xc0, 0x20, 0x00, 0x00, 0x4d, 0x40, 0x92, 0x00,
+  0x20, 0x00, 0xa7, 0x2b, 0x00, 0x01, 0xa7, 0x17, 0xff, 0xfc, 0xc0, 0x10,
+  0x00, 0x00, 0x4d, 0x37, 0xa7, 0x28, 0x10, 0x00, 0x40, 0x20, 0x10, 0x00,
+  0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04, 0xc0, 0xe5, 0xff, 0xff, 0xff, 0x1d,
+  0x12, 0x22, 0xa7, 0x74, 0x00, 0x19, 0xa7, 0x19, 0x00, 0x00, 0xc0, 0x40,
+  0x00, 0x00, 0x00, 0x79, 0xa7, 0x39, 0x00, 0x08, 0xc0, 0x20, 0x00, 0x00,
+  0x4d, 0x2c, 0x41, 0x21, 0x20, 0x00, 0xe3, 0x20, 0x20, 0x00, 0x00, 0x90,
+  0x43, 0x22, 0x40, 0x00, 0x42, 0x21, 0xb0, 0x00, 0xa7, 0x1b, 0x00, 0x01,
+  0xa7, 0x37, 0xff, 0xf2, 0xe3, 0x40, 0xf1, 0x10, 0x00, 0x04, 0xeb, 0xbf,
+  0xf0, 0xf8, 0x00, 0x04, 0x07, 0xf4, 0x07, 0x07, 0xeb, 0xaf, 0xf0, 0x50,
+  0x00, 0x24, 0xc0, 0xd0, 0x00, 0x00, 0x00, 0x55, 0xa7, 0xfb, 0xff, 0x60,
+  0xa7, 0x19, 0x0f, 0xf8, 0xb9, 0x21, 0x00, 0x31, 0xb9, 0x04, 0x00, 0xa2,
+  0xa7, 0xc4, 0x00, 0x2a, 0xa7, 0xb9, 0x0f, 0xf8, 0xc0, 0x10, 0x00, 0x00,
+  0x4c, 0xf6, 0xa7, 0x28, 0x10, 0x00, 0x40, 0x20, 0x10, 0x00, 0x92, 0x00,
+  0x10, 0x02, 0xe3, 0x20, 0xd0, 0x00, 0x00, 0x04, 0xc0, 0xe5, 0xff, 0xff,
+  0xfe, 0xda, 0xa7, 0xbb, 0x00, 0x01, 0xa7, 0x19, 0x00, 0x00, 0xa7, 0xb7,
+  0x00, 0x17, 0xc0, 0x10, 0x00, 0x00, 0x4c, 0xe1, 0xe3, 0x40, 0xf1, 0x10,
+  0x00, 0x04, 0xe3, 0x20, 0x10, 0x08, 0x00, 0x91, 0xa7, 0x2a, 0xff, 0xf9,
+  0xb9, 0x14, 0x00, 0x22, 0xeb, 0xaf, 0xf0, 0xf0, 0x00, 0x04, 0x07, 0xf4,
+  0xb9, 0x04, 0x00, 0xb3, 0xa7, 0xf4, 0xff, 0xd8, 0xc0, 0x20, 0x00, 0x00,
+  0x4c, 0xcc, 0x41, 0x31, 0xa0, 0x00, 0x41, 0x21, 0x20, 0x00, 0xa7, 0x1b,
+  0x00, 0x01, 0xd2, 0x00, 0x30, 0x00, 0x20, 0x0f, 0xa7, 0xf4, 0xff, 0xdd,
+  0x07, 0x07, 0x07, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0x00, 0x05,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x77, 0x00, 0x05,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x20, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x3c, 0x28, 0x2b, 0x7c, 0x26, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x2e, 0x2e, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x2e, 0x2d, 0x2f, 0x2e, 0x2e,
-  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
-  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x60, 0x3a, 0x23,
-  0x40, 0x27, 0x3d, 0x22, 0x2e, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-  0x68, 0x69, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x6a, 0x6b, 0x6c,
-  0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x2e, 0x2e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x20, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x3c, 0x28, 0x2b, 0x7c, 0x26, 0x2e, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x2e,
+  0x2d, 0x2f, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2c,
+  0x25, 0x5f, 0x3e, 0x3f, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+  0x2e, 0x60, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22, 0x2e, 0x61, 0x62, 0x63,
+  0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+  0x2e, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+  0x79, 0x7a, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
   0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x41, 0x42, 0x43,
-  0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x2e, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x2e, 0x2e,
-  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
-  0x59, 0x5a, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x30, 0x31, 0x32, 0x33,
-  0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
-  0x41, 0x00, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x2e, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
+  0x51, 0x52, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x53, 0x54,
+  0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2e, 0x2e,
+  0x2e, 0x2e, 0x2e, 0x2e, 0x41, 0x00, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x6f, 0xff, 0xfe, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xd8,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x02, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06,
@@ -163,91 +177,103 @@ unsigned char s390x_elf[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x6f, 0xff, 0xff, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x30,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x6f, 0xff, 0xff, 0xfb,
+  0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+  0x6f, 0xff, 0xff, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x47, 0x43, 0x43, 0x3a, 0x20, 0x28, 0x47, 0x4e, 0x55, 0x29, 0x20, 0x38,
-  0x2e, 0x32, 0x2e, 0x31, 0x20, 0x32, 0x30, 0x31, 0x38, 0x30, 0x39, 0x30,
-  0x35, 0x20, 0x28, 0x52, 0x65, 0x64, 0x20, 0x48, 0x61, 0x74, 0x20, 0x38,
-  0x2e, 0x32, 0x2e, 0x31, 0x2d, 0x33, 0x29, 0x00, 0x00, 0x2e, 0x73, 0x68,
-  0x73, 0x74, 0x72, 0x74, 0x61, 0x62, 0x00, 0x2e, 0x69, 0x6e, 0x74, 0x65,
-  0x72, 0x70, 0x00, 0x2e, 0x67, 0x6e, 0x75, 0x2e, 0x68, 0x61, 0x73, 0x68,
-  0x00, 0x2e, 0x64, 0x79, 0x6e, 0x73, 0x79, 0x6d, 0x00, 0x2e, 0x64, 0x79,
-  0x6e, 0x73, 0x74, 0x72, 0x00, 0x2e, 0x74, 0x65, 0x78, 0x74, 0x00, 0x2e,
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 };
-- 
2.34.1



^ permalink raw reply related	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 3/3] s390x/a-b-bios: zero the first byte of each page on start
  2023-09-19 10:23 ` [PATCH v2 3/3] s390x/a-b-bios: " Daniil Tatianin
@ 2023-09-26 21:25   ` Vladimir Sementsov-Ogievskiy
  2023-10-04  8:53   ` Juan Quintela
  1 sibling, 0 replies; 11+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2023-09-26 21:25 UTC (permalink / raw)
  To: Daniil Tatianin, Juan Quintela
  Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

On 19.09.23 13:23, Daniil Tatianin wrote:
> Same as with the x86 verison of this test, we relied on the contents of
> all pages in RAM to be the same across the entire test range, which is
> very fragile. Zero the first byte of each page before running the
> increment loop to fix this.
> 
> Fixes: 5571dc824b ("tests/migration: Enable the migration test on s390x, too")
> Signed-off-by: Daniil Tatianin<d-tatianin@yandex-team.ru>

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

-- 
Best regards,
Vladimir



^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH v2 3/3] s390x/a-b-bios: zero the first byte of each page on start
  2023-09-19 10:23 ` [PATCH v2 3/3] s390x/a-b-bios: " Daniil Tatianin
  2023-09-26 21:25   ` Vladimir Sementsov-Ogievskiy
@ 2023-10-04  8:53   ` Juan Quintela
  1 sibling, 0 replies; 11+ messages in thread
From: Juan Quintela @ 2023-10-04  8:53 UTC (permalink / raw)
  To: Daniil Tatianin; +Cc: Peter Xu, Leonardo Bras, qemu-devel, qemu-s390x

Daniil Tatianin <d-tatianin@yandex-team.ru> wrote:
> Same as with the x86 verison of this test, we relied on the contents of
> all pages in RAM to be the same across the entire test range, which is
> very fragile. Zero the first byte of each page before running the
> increment loop to fix this.
>
> Fixes: 5571dc824b ("tests/migration: Enable the migration test on s390x, too")
> Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>

Reviewed-by: Juan Quintela <quintela@redhat.com>

queued.



^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2023-10-04  8:59 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-09-19 10:23 [PATCH v2 0/3] migration-qtest: zero the first byte of each page on start Daniil Tatianin
2023-09-19 10:23 ` [PATCH v2 1/3] i386/a-b-bootblock: factor test memory addresses out into constants Daniil Tatianin
2023-09-26 21:22   ` Vladimir Sementsov-Ogievskiy
2023-10-02  7:24   ` Daniil Tatianin
2023-10-04  8:50   ` Juan Quintela
2023-09-19 10:23 ` [PATCH v2 2/3] i386/a-b-bootblock: zero the first byte of each page on start Daniil Tatianin
2023-09-26 21:23   ` Vladimir Sementsov-Ogievskiy
2023-10-04  8:53   ` Juan Quintela
2023-09-19 10:23 ` [PATCH v2 3/3] s390x/a-b-bios: " Daniil Tatianin
2023-09-26 21:25   ` Vladimir Sementsov-Ogievskiy
2023-10-04  8:53   ` Juan Quintela

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