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Bug 2111567 - EDK2 build stuck with qemu-kvm-7.0.0-8.el9 or newer
Summary: EDK2 build stuck with qemu-kvm-7.0.0-8.el9 or newer
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: edk2
Version: 9.1
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: rc
: ---
Assignee: Miroslav Rezanina
QA Contact: Xueqiang Wei
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-07-27 13:43 UTC by Miroslav Rezanina
Modified: 2022-11-15 10:27 UTC (History)
8 users (show)

Fixed In Version: edk2-20220526git16779ede2d36-3.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-11-15 09:56:33 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Gitlab redhat/centos-stream/src edk2 merge_requests 15 0 None opened Fix stucked ovmf-vars-generator 2022-07-28 06:30:49 UTC
Red Hat Issue Tracker RHELPLAN-129297 0 None None None 2022-07-27 13:48:10 UTC
Red Hat Product Errata RHEA-2022:7971 0 None None None 2022-11-15 09:57:21 UTC

Description Miroslav Rezanina 2022-07-27 13:43:29 UTC 
Description of problem:
-----------------------
When running EDK2 build using qemu-kvm-7.0.0-8.el9 or newer, ovmf-vars-generator script ends in loop and never ends. This behavior is probably related to changes related to deprecated cpu handling.

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
qemu-kvm-7.0.0-8.el9

How reproducible:
-----------------
Run EDK2 rpm build.

Actual results:
---------------
Build is stucked and never finishes.

Expected results:
-----------------
Build successfully finishes.
Comment 1 Daniel Berrangé 2022-07-27 13:50:42 UTC 
> This behavior is probably related to changes related to deprecated cpu handling

It shouldn't do - those changes didn't have any functional effect on usage of QEMU beyond printing a message on stderr if a deprecated CPU is used.
Comment 2 Daniel Berrangé 2022-07-27 13:54:40 UTC 
(In reply to Daniel Berrangé from comment #1)
> > This behavior is probably related to changes related to deprecated cpu handling
> 
> It shouldn't do - those changes didn't have any functional effect on usage
> of QEMU beyond printing a message on stderr if a deprecated CPU is used.

Having said that  'ovmf-vars-generator' appears to be parsing stdout/stderr, so may in fact be impacted.

I'd suggest modifying the script to pass '-cpu max' to see if that helps.
Comment 4 Oliver Steffen 2022-07-27 15:43:19 UTC 
'ovmf-vars-generator' runs qemu as a 'subprocess' and uses 'subprocess.stdout.readline()' to look at the output.
If the subprocess quits unexpectedly, it can happen that 'readline()' blocks forever.
Often, this is handled like this:

  while proc.poll() is None:
      data = proc.stdout.readline()
      ...

I would be good if 'ovmf-vars-generator' would detect if qemu stopps early and also report
this via its return code.
Comment 13 Yanan Fu 2022-08-02 14:04:36 UTC 
QE bot(pre verify): Set 'Verified:Tested,SanityOnly' as gating/tier1 test pass.
Comment 16 Xueqiang Wei 2022-08-05 10:12:39 UTC 
Failed to build edk2-ovmf-20220526git16779ede2d36-2.el9

# rpmbuild -bb edk2.spec
......
......
+SqIs/vdWGA40O3SFdzET14m2k=' --skip-testing Build/Ovmf3264/DEBUG_GCC5/FV/OVMF_VARS.secboot.fd
DEBUG:root:Temp output: /tmp/qosb.03nh_3vy.vars
INFO:root:Starting enrollment
INFO:root:Performing enrollment

Never finishes.



Build edk2-ovmf-20220526git16779ede2d36-3.el9 successfully.

# rpmbuild -bb edk2.spec
......
......
Wrote: /root/rpmbuild/RPMS/noarch/edk2-tools-doc-20220526git16779ede2d36-3.el9.noarch.rpm
Wrote: /root/rpmbuild/RPMS/x86_64/edk2-tools-20220526git16779ede2d36-3.el9.x86_64.rpm
Wrote: /root/rpmbuild/RPMS/noarch/edk2-ovmf-20220526git16779ede2d36-3.el9.noarch.rpm
Wrote: /root/rpmbuild/RPMS/x86_64/edk2-tools-debuginfo-20220526git16779ede2d36-3.el9.x86_64.rpm
Wrote: /root/rpmbuild/RPMS/x86_64/edk2-debugsource-20220526git16779ede2d36-3.el9.x86_64.rpm
Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.PvXUaE
+ umask 022
+ cd /root/rpmbuild/BUILD
+ cd edk2-16779ede2d36
+ /usr/bin/rm -rf /root/rpmbuild/BUILDROOT/edk2-20220526git16779ede2d36-3.el9.x86_64
+ RPM_EC=0
++ jobs -p
+ exit 0
Comment 19 Xueqiang Wei 2022-08-09 08:06:38 UTC 
According to Comment 15 and Comment 16, set status to VERIFIED. Thanks.
Comment 21 errata-xmlrpc 2022-11-15 09:56:33 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (edk2 bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:7971
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