[PATCH] qemu-iotests: Discard stderr when probing devices

[PATCH] qemu-iotests: Discard stderr when probing devices

[Cole Robinson]

./configure --enable-modules --enable-smartcard \
    --target-list=x86_64-softmmu,s390x-softmmu
make
cd build
QEMU_PROG=`pwd`/s390x-softmmu/qemu-system-s390x \
    ../tests/check-block.sh qcow2
...
--- /home/crobinso/src/qemu/tests/qemu-iotests/127.out
+++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/127.out.bad
@@ -1,4 +1,18 @@
 QA output created by 127
+Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
...
--- /home/crobinso/src/qemu/tests/qemu-iotests/267.out
+++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/267.out.bad
@@ -1,4 +1,11 @@
 QA output created by 267
+Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach

The stderr spew is its own known issue, but seems like iotests should
be discarding stderr in this case.

Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
 tests/qemu-iotests/common.rc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index 165b54a61e..db757025cb 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -982,7 +982,7 @@ _require_large_file()
 #
 _require_devices()
 {
-    available=$($QEMU -M none -device help | \
+    available=$($QEMU -M none -device help 2> /dev/null | \
                 grep ^name | sed -e 's/^name "//' -e 's/".*$//')
     for device
     do
@@ -994,7 +994,7 @@ _require_devices()
 
 _require_one_device_of()
 {
-    available=$($QEMU -M none -device help | \
+    available=$($QEMU -M none -device help 2> /dev/null | \
                 grep ^name | sed -e 's/^name "//' -e 's/".*$//')
     for device
     do
-- 
2.36.1

Re: [PATCH] qemu-iotests: Discard stderr when probing devices

[Thomas Huth]

On 05/06/2022 16.57, Cole Robinson wrote:
> ./configure --enable-modules --enable-smartcard \
>      --target-list=x86_64-softmmu,s390x-softmmu
> make
> cd build
> QEMU_PROG=`pwd`/s390x-softmmu/qemu-system-s390x \
>      ../tests/check-block.sh qcow2
> ...
> --- /home/crobinso/src/qemu/tests/qemu-iotests/127.out
> +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/127.out.bad
> @@ -1,4 +1,18 @@
>   QA output created by 127
> +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
> ...
> --- /home/crobinso/src/qemu/tests/qemu-iotests/267.out
> +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/267.out.bad
> @@ -1,4 +1,11 @@
>   QA output created by 267
> +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
> 
> The stderr spew is its own known issue, but seems like iotests should
> be discarding stderr in this case.
> 
> Signed-off-by: Cole Robinson <crobinso@redhat.com>
> ---
>   tests/qemu-iotests/common.rc | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
> index 165b54a61e..db757025cb 100644
> --- a/tests/qemu-iotests/common.rc
> +++ b/tests/qemu-iotests/common.rc
> @@ -982,7 +982,7 @@ _require_large_file()
>   #
>   _require_devices()
>   {
> -    available=$($QEMU -M none -device help | \
> +    available=$($QEMU -M none -device help 2> /dev/null | \
>                   grep ^name | sed -e 's/^name "//' -e 's/".*$//')
>       for device
>       do
> @@ -994,7 +994,7 @@ _require_devices()
>   
>   _require_one_device_of()
>   {
> -    available=$($QEMU -M none -device help | \
> +    available=$($QEMU -M none -device help 2> /dev/null | \
>                   grep ^name | sed -e 's/^name "//' -e 's/".*$//')
>       for device
>       do

Reviewed-by: Thomas Huth <thuth@redhat.com>

Re: [PATCH] qemu-iotests: Discard stderr when probing devices

[Kevin Wolf]

Am 05.06.2022 um 16:57 hat Cole Robinson geschrieben:
> ./configure --enable-modules --enable-smartcard \
>     --target-list=x86_64-softmmu,s390x-softmmu
> make
> cd build
> QEMU_PROG=`pwd`/s390x-softmmu/qemu-system-s390x \
>     ../tests/check-block.sh qcow2
> ...
> --- /home/crobinso/src/qemu/tests/qemu-iotests/127.out
> +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/127.out.bad
> @@ -1,4 +1,18 @@
>  QA output created by 127
> +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
> ...
> --- /home/crobinso/src/qemu/tests/qemu-iotests/267.out
> +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/267.out.bad
> @@ -1,4 +1,11 @@
>  QA output created by 267
> +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
> 
> The stderr spew is its own known issue, but seems like iotests should
> be discarding stderr in this case.
> 
> Signed-off-by: Cole Robinson <crobinso@redhat.com>

Oops, that took a while on my side... Thanks, applied to the block
branch.

By the way, putting diffs in the commit message is a great way to
confuse 'git am'. :-) Indenting your test scenario fixed it for me.

Kevin