* [kvm-unit-tests PATCH v1] arch-run: migration: properly handle crashing outgoing QEMU
@ 2023-09-26 12:08 Nico Boehr
2023-10-09 11:29 ` Thomas Huth
0 siblings, 1 reply; 4+ messages in thread
From: Nico Boehr @ 2023-09-26 12:08 UTC (permalink / raw)
To: frankja, imbrenda, thuth, pbonzini, andrew.jones; +Cc: kvm, linux-s390
When outgoing (live) QEMU crashes or times out during migration, we
currently hang forever.
This is because we don't exit the loop querying migration state when QMP
communication fails.
Add proper error handling to the loop and exit when QMP communication
fails for whatever reason.
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
---
Sorry I accidentally sent this only to s390x maintainers and forgot
Paolo and Andrew, hence resending.
scripts/arch-run.bash | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
index 518607f4b75d..de9890408e24 100644
--- a/scripts/arch-run.bash
+++ b/scripts/arch-run.bash
@@ -162,8 +162,14 @@ run_migration ()
migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
while ! grep -q '"completed"' <<<"$migstatus" ; do
sleep 1
- migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
- if grep -q '"failed"' <<<"$migstatus" ; then
+ if ! migstatus=`qmp ${qmp1} '"query-migrate"'`; then
+ echo "ERROR: Querying migration state failed." >&2
+ echo > ${fifo}
+ qmp ${qmp2} '"quit"'> ${qmpout2} 2>/dev/null
+ return 2
+ fi
+ migstatus=`grep return <<<"$migstatus"`
+ if grep -q '"failed"' <<<"$migstatus"; then
echo "ERROR: Migration failed." >&2
echo > ${fifo}
qmp ${qmp1} '"quit"'> ${qmpout1} 2>/dev/null
--
2.41.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [kvm-unit-tests PATCH v1] arch-run: migration: properly handle crashing outgoing QEMU
2023-09-26 12:08 [kvm-unit-tests PATCH v1] arch-run: migration: properly handle crashing outgoing QEMU Nico Boehr
@ 2023-10-09 11:29 ` Thomas Huth
2023-10-09 14:33 ` Nico Boehr
0 siblings, 1 reply; 4+ messages in thread
From: Thomas Huth @ 2023-10-09 11:29 UTC (permalink / raw)
To: Nico Boehr, frankja, imbrenda, pbonzini, andrew.jones; +Cc: kvm, linux-s390
On 26/09/2023 14.08, Nico Boehr wrote:
> When outgoing (live) QEMU crashes or times out during migration, we
> currently hang forever.
>
> This is because we don't exit the loop querying migration state when QMP
> communication fails.
>
> Add proper error handling to the loop and exit when QMP communication
> fails for whatever reason.
>
> Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
> ---
> Sorry I accidentally sent this only to s390x maintainers and forgot
> Paolo and Andrew, hence resending.
>
> scripts/arch-run.bash | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
> index 518607f4b75d..de9890408e24 100644
> --- a/scripts/arch-run.bash
> +++ b/scripts/arch-run.bash
> @@ -162,8 +162,14 @@ run_migration ()
> migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
> while ! grep -q '"completed"' <<<"$migstatus" ; do
> sleep 1
> - migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
> - if grep -q '"failed"' <<<"$migstatus" ; then
> + if ! migstatus=`qmp ${qmp1} '"query-migrate"'`; then
> + echo "ERROR: Querying migration state failed." >&2
> + echo > ${fifo}
> + qmp ${qmp2} '"quit"'> ${qmpout2} 2>/dev/null
> + return 2
> + fi
> + migstatus=`grep return <<<"$migstatus"`
> + if grep -q '"failed"' <<<"$migstatus"; then
> echo "ERROR: Migration failed." >&2
> echo > ${fifo}
> qmp ${qmp1} '"quit"'> ${qmpout1} 2>/dev/null
Reviewed-by: Thomas Huth <thuth@redhat.com>
and pushed to the repository.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [kvm-unit-tests PATCH v1] arch-run: migration: properly handle crashing outgoing QEMU
@ 2023-09-26 11:18 Nico Boehr
0 siblings, 0 replies; 4+ messages in thread
From: Nico Boehr @ 2023-09-26 11:18 UTC (permalink / raw)
To: frankja, imbrenda, thuth; +Cc: kvm, linux-s390
When outgoing (live) QEMU crashes or times out during migration, we
currently hang forever.
This is because we don't exit the loop querying migration state when QMP
communication fails.
Add proper error handling to the loop and exit when QMP communication
fails for whatever reason.
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
---
scripts/arch-run.bash | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
index 518607f4b75d..de9890408e24 100644
--- a/scripts/arch-run.bash
+++ b/scripts/arch-run.bash
@@ -162,8 +162,14 @@ run_migration ()
migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
while ! grep -q '"completed"' <<<"$migstatus" ; do
sleep 1
- migstatus=`qmp ${qmp1} '"query-migrate"' | grep return`
- if grep -q '"failed"' <<<"$migstatus" ; then
+ if ! migstatus=`qmp ${qmp1} '"query-migrate"'`; then
+ echo "ERROR: Querying migration state failed." >&2
+ echo > ${fifo}
+ qmp ${qmp2} '"quit"'> ${qmpout2} 2>/dev/null
+ return 2
+ fi
+ migstatus=`grep return <<<"$migstatus"`
+ if grep -q '"failed"' <<<"$migstatus"; then
echo "ERROR: Migration failed." >&2
echo > ${fifo}
qmp ${qmp1} '"quit"'> ${qmpout1} 2>/dev/null
--
2.41.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
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