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Message #02125
[Bug 2046148] Re: pkey01 and futex_wake04 from ubuntu_ltp_syscalls failed with X-kvm (Fail to open /proc/sys/vm/compact_memory for writing)
** Description changed:
This issue pops up after updating to the latest tip of LTP test suite
(commit 776b57984 "rwtest: Remove df symlink check")
These 2 failures are limited to X-kvm kernel and they're all failing with the same error message, I didn't see this failure on other 4.4 variants (X, X-aws, T-lts-X).
Bisect shows this issue is caused by acf46111b5 "hugetlb: compacting memory to reduce fragmental pages" [1]
Test log for pkey01:
<<<test_start>>>
tag=pkey01 stime=1702291503
cmdline="pkey01"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:50: TBROK: Failed to open FILE '/proc/sys/vm/compact_memory' for writing: ENOENT (2)
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=24
<<<test_end>>>
Test log for futex_wake04:
<<<test_start>>>
tag=futex_wake04 stime=1702291801
cmdline="futex_wake04"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:50: TBROK: Failed to open FILE '/proc/sys/vm/compact_memory' for writing: ENOENT (2)
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=0
<<<test_end>>>
-
- Before this change the test will be skipped with:
+ Before this change the pkey01 test will be skipped with:
<<<test_start>>>
tag=pkey01 stime=1702290779
cmdline="pkey01"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:83: TINFO: 1 hugepage(s) reserved
tst_test.c:1560: TINFO: Timeout per run is 0h 00m 30s
pkey.h:27: TCONF: syscall(330) __NR_pkey_alloc not supported on your arch
Summary:
passed 0
failed 0
broken 0
skipped 1
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=32 corefile=no
cutime=0 cstime=0
<<<test_end>>>
- Note that the pkey01 test used to fail before updating to LTP-20230516
+ The futex_wake04 test will pass with:
+ <<<test_start>>>
+ tag=futex_wake04 stime=1702292456
+ cmdline="futex_wake04"
+ contacts=""
+ analysis=exit
+ <<<test_output>>>
+ incrementing stop
+ tst_hugepage.c:83: TINFO: 1 hugepage(s) reserved
+ tst_test.c:1560: TINFO: Timeout per run is 0h 00m 30s
+ futex_wake04.c:52: TINFO: Testing variant: syscall with old kernel spec
+ futex_wake04.c:90: TINFO: Hugepagesize 2097152
+ futex_utils.h:59: TINFO: Thread 17485 not sleeping yet
+ futex_wake04.c:75: TPASS: Hi hydra, thread2 awake!
+
+ Summary:
+ passed 1
+ failed 0
+ broken 0
+ skipped 0
+ warnings 0
+ <<<execution_status>>>
[1] https://github.com/linux-test-
project/ltp/commit/acf46111b5cc0f4bfb2309a797f5b1a937e47ff8
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https://bugs.launchpad.net/bugs/2046148
Title:
pkey01 and futex_wake04 from ubuntu_ltp_syscalls failed with X-kvm
(Fail to open /proc/sys/vm/compact_memory for writing)
Status in ubuntu-kernel-tests:
New
Bug description:
This issue pops up after updating to the latest tip of LTP test suite
(commit 776b57984 "rwtest: Remove df symlink check")
These 2 failures are limited to X-kvm kernel and they're all failing with the same error message, I didn't see this failure on other 4.4 variants (X, X-aws, T-lts-X).
Bisect shows this issue is caused by acf46111b5 "hugetlb: compacting memory to reduce fragmental pages" [1]
Test log for pkey01:
<<<test_start>>>
tag=pkey01 stime=1702291503
cmdline="pkey01"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:50: TBROK: Failed to open FILE '/proc/sys/vm/compact_memory' for writing: ENOENT (2)
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=24
<<<test_end>>>
Test log for futex_wake04:
<<<test_start>>>
tag=futex_wake04 stime=1702291801
cmdline="futex_wake04"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:50: TBROK: Failed to open FILE '/proc/sys/vm/compact_memory' for writing: ENOENT (2)
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=0
<<<test_end>>>
Before this change the pkey01 test will be skipped with:
<<<test_start>>>
tag=pkey01 stime=1702290779
cmdline="pkey01"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:83: TINFO: 1 hugepage(s) reserved
tst_test.c:1560: TINFO: Timeout per run is 0h 00m 30s
pkey.h:27: TCONF: syscall(330) __NR_pkey_alloc not supported on your arch
Summary:
passed 0
failed 0
broken 0
skipped 1
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=32 corefile=no
cutime=0 cstime=0
<<<test_end>>>
The futex_wake04 test will pass with:
<<<test_start>>>
tag=futex_wake04 stime=1702292456
cmdline="futex_wake04"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_hugepage.c:83: TINFO: 1 hugepage(s) reserved
tst_test.c:1560: TINFO: Timeout per run is 0h 00m 30s
futex_wake04.c:52: TINFO: Testing variant: syscall with old kernel spec
futex_wake04.c:90: TINFO: Hugepagesize 2097152
futex_utils.h:59: TINFO: Thread 17485 not sleeping yet
futex_wake04.c:75: TPASS: Hi hydra, thread2 awake!
Summary:
passed 1
failed 0
broken 0
skipped 0
warnings 0
<<<execution_status>>>
[1] https://github.com/linux-test-
project/ltp/commit/acf46111b5cc0f4bfb2309a797f5b1a937e47ff8
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