Re: [lkp-robot] ee410f15b1 BUG: kernel hang in boot stage
On 03/07/2018 04:51, kernel test robot wrote: Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit ee410f15b1418f2f4428e79980674c979081bcb7 Author: Thierry Escande AuthorDate: Thu Jun 14 15:28:15 2018 -0700 Commit: Linus Torvalds CommitDate: Fri Jun 15 07:55:25 2018 +0900 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests This patch is already reverted in Linus tree. It's also been superseded in linux-next by a new version. Regards, Thierry If the test_printf module is loaded before the crng is initialized, the plain 'p' tests will fail because the printed address will not be hashed and the buffer will contain '(ptrval)' instead. This patch adds a call to wait_for_random_bytes() before plain 'p' tests to make sure the crng is initialized. Link: http://lkml.kernel.org/r/20180604113708.11554-1-thierry.esca...@linaro.org Signed-off-by: Thierry Escande Acked-by: Tobin C. Harding Reviewed-by: Andrew Morton Cc: David Miller Cc: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds 608dbdfb1f hexagon: drop the unused variable zero_page_mask ee410f15b1 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests 883c9ab9eb Merge branch 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux e3c7283c19 Add linux-next specific files for 20180629 +---++++---+ | | 608dbdfb1f | ee410f15b1 | 883c9ab9eb | next-20180629 | +---++++---+ | boot_successes| 35 | 0 | 19 | 13 | | boot_failures | 0 | 15 || | | BUG:kernel_hang_in_boot_stage | 0 | 15 || | +---++++---+ [9.488584] - [9.491008] Testing concurrent rhashtable access from 10 threads [ 21.577749] test 3125 add/delete pairs into rhlist [ 21.734553] test 3125 random rhlist add/delete operations [ 21.813107] Started 10 threads, 0 failed, rhltable test returns 0 BUG: kernel hang in boot stage # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 7daf201d7fe8334e2d2364d4e8ed3394ec9af819 v4.17 -- git bisect good a16afaf7928b74c30a4727cdcaa67bd10675a55d # 08:00 G 11 00 0 Merge tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply git bisect good dc594c39f7a9dcdfd5dbb1a446ac6d06182e2472 # 08:13 G 11 00 0 Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client git bisect bad 81e97f01371f4e1701feeafe484665112cd9ddc2 # 08:33 B 0 1 15 0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid git bisect bad 35773c93817c5f2df264d013978e7551056a063a # 08:55 B 0 1 15 0 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect bad 8949170cf48e91da7e4e69a59e2842d81d9a5885 # 09:26 B 0 1 15 0 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm git bisect bad becfc5e97cbab00b25a592aabc36838ec7217d1f # 09:49 B 0 10 24 0 Merge tag 'drm-next-2018-06-15' of git://anongit.freedesktop.org/drm/drm git bisect good 7a932516f55cdf430c7cce78df2010ff7db6b874 # 10:21 G 11 00 0 Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground git bisect bad b5d903c2d656e9bc54bc76554a477d796a63120d # 10:44 B 0 1 15 0 Merge branch 'akpm' (patches from Andrew) git bisect good 3fb3894b84c2e0f83cb1e4f4e960243742e6b3a6 # 11:06 G 10 00 0 kernel/relay.c: change return type to vm_fault_t git bisect good 14f28f5776927be30717986f86b765d49eec392c # 11:20 G 10 00 0 ipc: use new return type vm_fault_t git bisect good fe6bdfc8e1e131720abbe77a2eb990c94c9024cb # 11:44 G 10 00 0 mm: fix oom_kill event handling git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 11:56 G 11 00 0 hexagon: drop the unused variable zero_page_mask git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 12:16 B 0 1 15 0 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests # first bad commit: [ee410f15b1418f2f4428e79980674c979081bcb7] lib/test_printf.c: call wait_for_random_bytes() before plain %p tests git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 12:42 G 30 00 0 hexagon: drop the
Re: [lkp-robot] ee410f15b1 BUG: kernel hang in boot stage
On 03/07/2018 04:51, kernel test robot wrote: Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit ee410f15b1418f2f4428e79980674c979081bcb7 Author: Thierry Escande AuthorDate: Thu Jun 14 15:28:15 2018 -0700 Commit: Linus Torvalds CommitDate: Fri Jun 15 07:55:25 2018 +0900 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests This patch is already reverted in Linus tree. It's also been superseded in linux-next by a new version. Regards, Thierry If the test_printf module is loaded before the crng is initialized, the plain 'p' tests will fail because the printed address will not be hashed and the buffer will contain '(ptrval)' instead. This patch adds a call to wait_for_random_bytes() before plain 'p' tests to make sure the crng is initialized. Link: http://lkml.kernel.org/r/20180604113708.11554-1-thierry.esca...@linaro.org Signed-off-by: Thierry Escande Acked-by: Tobin C. Harding Reviewed-by: Andrew Morton Cc: David Miller Cc: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds 608dbdfb1f hexagon: drop the unused variable zero_page_mask ee410f15b1 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests 883c9ab9eb Merge branch 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux e3c7283c19 Add linux-next specific files for 20180629 +---++++---+ | | 608dbdfb1f | ee410f15b1 | 883c9ab9eb | next-20180629 | +---++++---+ | boot_successes| 35 | 0 | 19 | 13 | | boot_failures | 0 | 15 || | | BUG:kernel_hang_in_boot_stage | 0 | 15 || | +---++++---+ [9.488584] - [9.491008] Testing concurrent rhashtable access from 10 threads [ 21.577749] test 3125 add/delete pairs into rhlist [ 21.734553] test 3125 random rhlist add/delete operations [ 21.813107] Started 10 threads, 0 failed, rhltable test returns 0 BUG: kernel hang in boot stage # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 7daf201d7fe8334e2d2364d4e8ed3394ec9af819 v4.17 -- git bisect good a16afaf7928b74c30a4727cdcaa67bd10675a55d # 08:00 G 11 00 0 Merge tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply git bisect good dc594c39f7a9dcdfd5dbb1a446ac6d06182e2472 # 08:13 G 11 00 0 Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client git bisect bad 81e97f01371f4e1701feeafe484665112cd9ddc2 # 08:33 B 0 1 15 0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid git bisect bad 35773c93817c5f2df264d013978e7551056a063a # 08:55 B 0 1 15 0 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect bad 8949170cf48e91da7e4e69a59e2842d81d9a5885 # 09:26 B 0 1 15 0 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm git bisect bad becfc5e97cbab00b25a592aabc36838ec7217d1f # 09:49 B 0 10 24 0 Merge tag 'drm-next-2018-06-15' of git://anongit.freedesktop.org/drm/drm git bisect good 7a932516f55cdf430c7cce78df2010ff7db6b874 # 10:21 G 11 00 0 Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground git bisect bad b5d903c2d656e9bc54bc76554a477d796a63120d # 10:44 B 0 1 15 0 Merge branch 'akpm' (patches from Andrew) git bisect good 3fb3894b84c2e0f83cb1e4f4e960243742e6b3a6 # 11:06 G 10 00 0 kernel/relay.c: change return type to vm_fault_t git bisect good 14f28f5776927be30717986f86b765d49eec392c # 11:20 G 10 00 0 ipc: use new return type vm_fault_t git bisect good fe6bdfc8e1e131720abbe77a2eb990c94c9024cb # 11:44 G 10 00 0 mm: fix oom_kill event handling git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 11:56 G 11 00 0 hexagon: drop the unused variable zero_page_mask git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 12:16 B 0 1 15 0 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests # first bad commit: [ee410f15b1418f2f4428e79980674c979081bcb7] lib/test_printf.c: call wait_for_random_bytes() before plain %p tests git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 12:42 G 30 00 0 hexagon: drop the
[lkp-robot] ee410f15b1 BUG: kernel hang in boot stage
Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit ee410f15b1418f2f4428e79980674c979081bcb7 Author: Thierry Escande AuthorDate: Thu Jun 14 15:28:15 2018 -0700 Commit: Linus Torvalds CommitDate: Fri Jun 15 07:55:25 2018 +0900 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests If the test_printf module is loaded before the crng is initialized, the plain 'p' tests will fail because the printed address will not be hashed and the buffer will contain '(ptrval)' instead. This patch adds a call to wait_for_random_bytes() before plain 'p' tests to make sure the crng is initialized. Link: http://lkml.kernel.org/r/20180604113708.11554-1-thierry.esca...@linaro.org Signed-off-by: Thierry Escande Acked-by: Tobin C. Harding Reviewed-by: Andrew Morton Cc: David Miller Cc: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds 608dbdfb1f hexagon: drop the unused variable zero_page_mask ee410f15b1 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests 883c9ab9eb Merge branch 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux e3c7283c19 Add linux-next specific files for 20180629 +---++++---+ | | 608dbdfb1f | ee410f15b1 | 883c9ab9eb | next-20180629 | +---++++---+ | boot_successes| 35 | 0 | 19 | 13 | | boot_failures | 0 | 15 || | | BUG:kernel_hang_in_boot_stage | 0 | 15 || | +---++++---+ [9.488584] - [9.491008] Testing concurrent rhashtable access from 10 threads [ 21.577749] test 3125 add/delete pairs into rhlist [ 21.734553] test 3125 random rhlist add/delete operations [ 21.813107] Started 10 threads, 0 failed, rhltable test returns 0 BUG: kernel hang in boot stage # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 7daf201d7fe8334e2d2364d4e8ed3394ec9af819 v4.17 -- git bisect good a16afaf7928b74c30a4727cdcaa67bd10675a55d # 08:00 G 11 00 0 Merge tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply git bisect good dc594c39f7a9dcdfd5dbb1a446ac6d06182e2472 # 08:13 G 11 00 0 Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client git bisect bad 81e97f01371f4e1701feeafe484665112cd9ddc2 # 08:33 B 0 1 15 0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid git bisect bad 35773c93817c5f2df264d013978e7551056a063a # 08:55 B 0 1 15 0 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect bad 8949170cf48e91da7e4e69a59e2842d81d9a5885 # 09:26 B 0 1 15 0 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm git bisect bad becfc5e97cbab00b25a592aabc36838ec7217d1f # 09:49 B 0 10 24 0 Merge tag 'drm-next-2018-06-15' of git://anongit.freedesktop.org/drm/drm git bisect good 7a932516f55cdf430c7cce78df2010ff7db6b874 # 10:21 G 11 00 0 Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground git bisect bad b5d903c2d656e9bc54bc76554a477d796a63120d # 10:44 B 0 1 15 0 Merge branch 'akpm' (patches from Andrew) git bisect good 3fb3894b84c2e0f83cb1e4f4e960243742e6b3a6 # 11:06 G 10 00 0 kernel/relay.c: change return type to vm_fault_t git bisect good 14f28f5776927be30717986f86b765d49eec392c # 11:20 G 10 00 0 ipc: use new return type vm_fault_t git bisect good fe6bdfc8e1e131720abbe77a2eb990c94c9024cb # 11:44 G 10 00 0 mm: fix oom_kill event handling git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 11:56 G 11 00 0 hexagon: drop the unused variable zero_page_mask git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 12:16 B 0 1 15 0 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests # first bad commit: [ee410f15b1418f2f4428e79980674c979081bcb7] lib/test_printf.c: call wait_for_random_bytes() before plain %p tests git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 12:42 G 30 00 0 hexagon: drop the unused variable zero_page_mask # extra tests with debug options git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 13:00 B 0 11 25 0 lib/test_printf.c: call
[lkp-robot] ee410f15b1 BUG: kernel hang in boot stage
Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit ee410f15b1418f2f4428e79980674c979081bcb7 Author: Thierry Escande AuthorDate: Thu Jun 14 15:28:15 2018 -0700 Commit: Linus Torvalds CommitDate: Fri Jun 15 07:55:25 2018 +0900 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests If the test_printf module is loaded before the crng is initialized, the plain 'p' tests will fail because the printed address will not be hashed and the buffer will contain '(ptrval)' instead. This patch adds a call to wait_for_random_bytes() before plain 'p' tests to make sure the crng is initialized. Link: http://lkml.kernel.org/r/20180604113708.11554-1-thierry.esca...@linaro.org Signed-off-by: Thierry Escande Acked-by: Tobin C. Harding Reviewed-by: Andrew Morton Cc: David Miller Cc: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds 608dbdfb1f hexagon: drop the unused variable zero_page_mask ee410f15b1 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests 883c9ab9eb Merge branch 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux e3c7283c19 Add linux-next specific files for 20180629 +---++++---+ | | 608dbdfb1f | ee410f15b1 | 883c9ab9eb | next-20180629 | +---++++---+ | boot_successes| 35 | 0 | 19 | 13 | | boot_failures | 0 | 15 || | | BUG:kernel_hang_in_boot_stage | 0 | 15 || | +---++++---+ [9.488584] - [9.491008] Testing concurrent rhashtable access from 10 threads [ 21.577749] test 3125 add/delete pairs into rhlist [ 21.734553] test 3125 random rhlist add/delete operations [ 21.813107] Started 10 threads, 0 failed, rhltable test returns 0 BUG: kernel hang in boot stage # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 7daf201d7fe8334e2d2364d4e8ed3394ec9af819 v4.17 -- git bisect good a16afaf7928b74c30a4727cdcaa67bd10675a55d # 08:00 G 11 00 0 Merge tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply git bisect good dc594c39f7a9dcdfd5dbb1a446ac6d06182e2472 # 08:13 G 11 00 0 Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client git bisect bad 81e97f01371f4e1701feeafe484665112cd9ddc2 # 08:33 B 0 1 15 0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid git bisect bad 35773c93817c5f2df264d013978e7551056a063a # 08:55 B 0 1 15 0 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect bad 8949170cf48e91da7e4e69a59e2842d81d9a5885 # 09:26 B 0 1 15 0 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm git bisect bad becfc5e97cbab00b25a592aabc36838ec7217d1f # 09:49 B 0 10 24 0 Merge tag 'drm-next-2018-06-15' of git://anongit.freedesktop.org/drm/drm git bisect good 7a932516f55cdf430c7cce78df2010ff7db6b874 # 10:21 G 11 00 0 Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground git bisect bad b5d903c2d656e9bc54bc76554a477d796a63120d # 10:44 B 0 1 15 0 Merge branch 'akpm' (patches from Andrew) git bisect good 3fb3894b84c2e0f83cb1e4f4e960243742e6b3a6 # 11:06 G 10 00 0 kernel/relay.c: change return type to vm_fault_t git bisect good 14f28f5776927be30717986f86b765d49eec392c # 11:20 G 10 00 0 ipc: use new return type vm_fault_t git bisect good fe6bdfc8e1e131720abbe77a2eb990c94c9024cb # 11:44 G 10 00 0 mm: fix oom_kill event handling git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 11:56 G 11 00 0 hexagon: drop the unused variable zero_page_mask git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 12:16 B 0 1 15 0 lib/test_printf.c: call wait_for_random_bytes() before plain %p tests # first bad commit: [ee410f15b1418f2f4428e79980674c979081bcb7] lib/test_printf.c: call wait_for_random_bytes() before plain %p tests git bisect good 608dbdfb1f0299f4500e56d62b0d84c44dcfa3be # 12:42 G 30 00 0 hexagon: drop the unused variable zero_page_mask # extra tests with debug options git bisect bad ee410f15b1418f2f4428e79980674c979081bcb7 # 13:00 B 0 11 25 0 lib/test_printf.c: call
