diff options
| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2023-05-10 12:55:31 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-05-16 09:14:18 +0200 |
| commit | 88693ab2a53f2f3d25cb39a7b5034ab391bc5a81 (patch) | |
| tree | 499b8fdb5d96efc7c19411b66dc65f9ea22ee5bf /docs | |
| parent | 80bd81cadd127c1e2fc784612a52abe392670ba4 (diff) | |
s390x/pv: Fix spurious warning with asynchronous teardown
Kernel commit 292a7d6fca33 ("KVM: s390: pv: fix asynchronous teardown
for small VMs") causes the KVM_PV_ASYNC_CLEANUP_PREPARE ioctl to fail
if the VM is not larger than 2GiB. QEMU would attempt it and fail,
print an error message, and then proceed with a normal teardown.
Avoid attempting to use asynchronous teardown altogether when the VM is
not larger than 2 GiB. This will avoid triggering the error message and
also avoid pointless overhead; normal teardown is fast enough for small
VMs.
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Fixes: c3a073c610 ("s390x/pv: Add support for asynchronous teardown for reboot")
Link: https://lore.kernel.org/all/20230421085036.52511-2-imbrenda@linux.ibm.com/
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20230510105531.30623-2-imbrenda@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Fix inline function parameter in pv.h]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions