** Description changed:
Issue found on 3.13.0-190.241 lowlatency kernel with node gonzo (passed
with generic kernel on another node onibi)
Manually tested with:
* node "onibi" + 3.13.0-190 lowlatency kernel: passed
- * node "gonzo" + 3.13.0-190 generic kernel: failed
+ * node "onibi" + 3.13.0-170 generic kernel: passed
+ * node "gonzo" + 3.13.0-190 generic kernel: failed
* node "gonzo" + 3.13.0-189 generic kernel: failed
- * node "gonzo" + 3.13.0-170 generic kernel: failed
+ * node "gonzo" + 3.13.0-170 generic kernel: failed
- Test fail rate 4 out of 4 attempts.
+ Looks like this is not a regression but rather a hardware-specific
+ issue.
+
+ Test fail rate 5 out of 5 attempts.
Test log:
test_brk_collision (__main__.KernelASLRCollisionsTest)
Check if brk crashes into mmap in 10,000 execs (i386, nx-emu only) (LP:
#452175) ... FAIL
test_stack_collision (__main__.KernelASLRCollisionsTest)
Check if stack crashes into mmap in 100,000 execs (amd64 only?) (LP:
#504164) ... ok
======================================================================
FAIL: test_brk_collision (__main__.KernelASLRCollisionsTest)
Check if brk crashes into mmap in 10,000 execs (i386, nx-emu only) (LP:
#452175)
----------------------------------------------------------------------
Traceback (most recent call last):
File "./test-kernel-aslr-collisions.py", line 95, in test_brk_collision
self.assertShellExitEquals(0, ['./explode-brk'])
File
"/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/testlib.py",
line 1203, in assertShellExitEquals
self.assertEqual(expected, rc, msg + result + report)
AssertionError: Got exit code 1, expected 0
Command: './explode-brk'
Output:
7f59c8fd8000-7f59c9196000 r-xp 00000000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c9196000-7f59c9396000 ---p 001be000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c9396000-7f59c939a000 r--p 001be000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c939a000-7f59c939c000 rw-p 001c2000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c939c000-7f59c93a1000 rw-p 00000000 00:00 0
7f59c93a8000-7f59c93cb000 r-xp 00000000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95ca000-7f59c95cb000 r--p 00022000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95cb000-7f59c95cc000 rw-p 00023000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95cc000-7f59c95cd000 rw-p 00000000 00:00 0
7f59c95d0000-7f59c95d1000 r-xp 00000000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d0000-7f59c97d1000 r--p 00000000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d1000-7f59c97d2000 rw-p 00001000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d4000-7f59c97d8000 rw-p 00000000 00:00 0
[heap]
7fffd59ff000-7fffd5a20000 rw-p 00000000 00:00 0
[stack]
7fffd5a20000-7fffd5a22000 r-xp 00000000 00:00 0
[vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
FAIL: unable to use brk area at 0x7f59c97d4000 - 0x7f59c97dc000
----------------------------------------------------------------------
Ran 5 tests in 467.450s
FAILED (failures=1)
** Also affects: qa-regression-testing
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1978038
Title:
test_brk_collision in ubuntu_qrt_kernel_aslr_collisions failed on T
Status in QA Regression Testing:
New
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Trusty:
Incomplete
Bug description:
Issue found on 3.13.0-190.241 lowlatency kernel with node gonzo
(passed with generic kernel on another node onibi)
Manually tested with:
* node "onibi" + 3.13.0-190 lowlatency kernel: passed
* node "onibi" + 3.13.0-170 generic kernel: passed
* node "gonzo" + 3.13.0-190 generic kernel: failed
* node "gonzo" + 3.13.0-189 generic kernel: failed
* node "gonzo" + 3.13.0-170 generic kernel: failed
Looks like this is not a regression but rather a hardware-specific
issue.
Test fail rate 5 out of 5 attempts.
Test log:
test_brk_collision (__main__.KernelASLRCollisionsTest)
Check if brk crashes into mmap in 10,000 execs (i386, nx-emu only) (LP:
#452175) ... FAIL
test_stack_collision (__main__.KernelASLRCollisionsTest)
Check if stack crashes into mmap in 100,000 execs (amd64 only?) (LP:
#504164) ... ok
======================================================================
FAIL: test_brk_collision (__main__.KernelASLRCollisionsTest)
Check if brk crashes into mmap in 10,000 execs (i386, nx-emu only) (LP:
#452175)
----------------------------------------------------------------------
Traceback (most recent call last):
File "./test-kernel-aslr-collisions.py", line 95, in test_brk_collision
self.assertShellExitEquals(0, ['./explode-brk'])
File
"/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/testlib.py",
line 1203, in assertShellExitEquals
self.assertEqual(expected, rc, msg + result + report)
AssertionError: Got exit code 1, expected 0
Command: './explode-brk'
Output:
7f59c8fd8000-7f59c9196000 r-xp 00000000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c9196000-7f59c9396000 ---p 001be000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c9396000-7f59c939a000 r--p 001be000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c939a000-7f59c939c000 rw-p 001c2000 08:01 3281122
/lib/x86_64-linux-gnu/libc-2.19.so
7f59c939c000-7f59c93a1000 rw-p 00000000 00:00 0
7f59c93a8000-7f59c93cb000 r-xp 00000000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95ca000-7f59c95cb000 r--p 00022000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95cb000-7f59c95cc000 rw-p 00023000 08:01 3281111
/lib/x86_64-linux-gnu/ld-2.19.so
7f59c95cc000-7f59c95cd000 rw-p 00000000 00:00 0
7f59c95d0000-7f59c95d1000 r-xp 00000000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d0000-7f59c97d1000 r--p 00000000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d1000-7f59c97d2000 rw-p 00001000 08:01 15470803
/home/ubuntu/autotest/client/tmp/ubuntu_qrt_kernel_aslr_collisions/src/qa-regression-testing/scripts/kernel-aslr-collisions/explode-brk
7f59c97d4000-7f59c97d8000 rw-p 00000000 00:00 0
[heap]
7fffd59ff000-7fffd5a20000 rw-p 00000000 00:00 0
[stack]
7fffd5a20000-7fffd5a22000 r-xp 00000000 00:00 0
[vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
FAIL: unable to use brk area at 0x7f59c97d4000 - 0x7f59c97dc000
----------------------------------------------------------------------
Ran 5 tests in 467.450s
FAILED (failures=1)
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