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Bug 1623425

Summary: case 138 of qemu-iotests failed for the result of 'qemu-img check' does not match with the 138.out file
Product: Red Hat Enterprise Linux 7 Reporter: Tingting Mao <timao>
Component: qemu-kvm-rhevAssignee: Ademar Reis <areis>
Status: CLOSED DEFERRED QA Contact: Tingting Mao <timao>
Severity: low Docs Contact:
Priority: low    
Version: 7.6CC: chaoyang, coli, hreitz, juzhang, michen, timao, virt-maint
Target Milestone: rcKeywords: Reopened
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-03-18 21:08:36 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Tingting Mao 2018-08-29 10:37:23 UTC 
Description of problem:
Case 138 of qemu-iotests failed, and it seems the reason is that the 138.out file is not matched for the test result.

Version-Release number of selected component (if applicable):
qemu-kvm-rhev-2.12.0-12.el7
kernel-3.10.0-935.el7

How reproducible:
100%

Steps to Reproduce:
1. Get the source code
# brew download-build --rpm qemu-kvm-rhev-2.12.0-12.el7.src.rpm
# rpm -ivhf qemu-kvm-rhev-2.12.0-12.el7.src.rpm
# rpmbuild -bp /root/rpmbuild/SPECS/qemu-kvm.spec --nodeps 

2. configure the env
# cd /root/rpmbuild/BUILD/qemu-2.12.0/
# ./configure 
# export QEMU_PROG=/usr/libexec/qemu-kvm
# export QEMU_IMG_PROG=/usr/bin/qemu-img
# export QEMU_IO_PROG=/usr/bin/qemu-io
# export QEMU_NBD_PROG=/usr/bin/qemu-nbd

3. test the 82th case
# cd tests/qemu-iotests/
# ./check -qcow2 138



Actual results:
# ./check -qcow2 138
QEMU          -- "/usr/libexec/qemu-kvm" -nodefaults -machine accel=qtest
QEMU_IMG      -- "/usr/bin/qemu-img" 
QEMU_IO       -- "/usr/bin/qemu-io"  --cache writeback -f qcow2
QEMU_NBD      -- "/usr/bin/qemu-nbd" 
IMGFMT        -- qcow2 (compat=1.1)
IMGPROTO      -- file
PLATFORM      -- Linux/x86_64 hp-dl388g8-16 3.10.0-935.el7.x86_64
TEST_DIR      -- /root/rpmbuild/BUILD/qemu-2.12.0/tests/qemu-iotests/scratch
SOCKET_SCM_HELPER -- 

138         - output mismatch (see 138.out.bad)
--- /root/rpmbuild/BUILD/qemu-2.12.0/tests/qemu-iotests/138.out	2018-04-24 12:30:47.000000000 -0400
+++ /root/rpmbuild/BUILD/qemu-2.12.0/tests/qemu-iotests/138.out.bad	2018-08-29 06:32:58.943135380 -0400
@@ -5,5 +5,6 @@
 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=512
 wrote 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+tcmalloc: large alloc 140737488363520 bytes == (nil) @  0x7f5d98ac935f 0x7f5d98ae9bd6 0x7f5d985ea826 0x55d269fd28f1 0x55d269fd4e63 0x55d269fd57e1 0x55d269fd5aac 0x55d269fd6096 0x55d269fcdad1 0x55d269fcdb44 0x55d269fa84c3 0x55d26a07c16a 0x7f5d96808010
 qemu-img: Check failed: Cannot allocate memory
 *** done
Failures: 138
Failed 1 of 1 tests


Expected results:
The case could pass.

Additional info:
Comment 2 Ping Li 2018-09-03 15:00:00 UTC 

*** This bug has been marked as a duplicate of bug 1331279 ***
Comment 3 CongLi 2018-09-04 03:26:13 UTC 
(In reply to Tingting Mao from comment #0)
> Description of problem:
> Case 138 of qemu-iotests failed, and it seems the reason is that the 138.out
> file is not matched for the test result.

QE would like to report each failed iotests case separately with detailed reason, which is more clear and more quick to fix it, instead of a list of failed iotests cases.

Thanks.
Comment 5 Ademar Reis 2019-03-18 21:08:36 UTC 
Our downstream CI team is now running qemu-iotests. Several of them are even enabled in %check as part of rpmbuild.

The ones that are broken in the CI or brew environment are being reported in bugzilla (there are several reported already).

So I'm closing all of the old qemu-iotest BZs. We'll work on them in this more controlled environment of CI and brew.