Hi All, I am running LTP to test cpuset test cases. I have created new command file after copying 2 commands from runltp.
cpuset_load_balance cpuset_load_balance_test.sh cpuset_base_ops cpuset_base_ops_testset.sh with above sequence, crash is happening [10546.587463] Workqueue: cgroup_destroy css_killed_work_fn [10546.592762] pstate: 80400009 (Nzcv daif +PAN -UAO) [10546.597550] pc : build_sched_domains+0x244/0xb48 [10546.602154] lr : build_sched_domains+0x228/0xb48 [10546.606757] sp : ffff000031fc3b70 [10546.610059] x29: ffff000031fc3b70 x28: ffff00001157d730 [10546.615357] x27: ffff0000115a7000 x26: ffff00001118d000 [10546.620655] x25: 00000000000000e0 x24: 0000000000000000 [10546.625953] x23: ffff00001118dc80 x22: ffff00001157d730 [10546.631251] x21: ffff80bf54723940 x20: ffff80bded3aef00 [10546.636549] x19: ffff00001157f1e4 x18: 0000000000000000 [10546.641848] x17: 0000000000000000 x16: 0000000000000000 .546 kernel:Internal error: Oops: 96000007 [#1] SMP [10546.661905] x13: 00000000ffffffff x12: ffffffff00000000 [10546.667203] x11: 0000000000000000 x10: 0000000000000000 [10546.672501] x9 : 0000000000000000 x8 : ffff80bded45c000 [10546.677799] x7 : 0000000000000000 x6 : 000000000000003f [10546.683097] x5 : 0000000000000040 x4 : 0000000000000000 [10546.688395] x3 : 0000000000000000 x2 : 0000000000000000 [10546.693693] x1 : ffff00001118dc80 x0 : 00000000ffffffff [10546.698991] Call trace: [10546.701426] build_sched_domains+0x244/0xb48 [10546.705684] partition_sched_domains+0x1dc/0x2dc [10546.710300] rebuild_sched_domains_locked+0x64/0xa8 [10546.715166] update_flag+0x174/0x190 [10546.718729] cpuset_css_offline+0xb0/0xc8 [10546.722725] css_killed_work_fn+0x54/0x118 [10546.726811] process_one_work+0x1b4/0x3d8 [10546.730807] worker_thread+0x4c/0x420 [10546.734463] kthread+0x108/0x138 [10546.737685] ret_from_fork+0x10/0x18 [10546.741249] Code: aa0003e1 12800000 f862dac2 aa0103f7 (f8616855) [10546.747330] ---[ end trace c4f1497fb4a860c8 ]--- Strangely, If I run sequence [1] or [2] no crash is happening [1] cpuset_load_balance cpuset_load_balance_test.sh cpuset_load_balance cpuset_load_balance_test.sh [2] cpuset_load_balance cpuset_load_balance_test.sh cpuset_sched_domains cpuset_sched_domains_test.sh cpuset_hotplug cpuset_hotplug_test.sh What I can infer that the cpuset_load_balance, cpuset_sched_domains, cpuset_hotplug are usig cpuset_set(). While cpuset_base_ops doesnt use cpuset_set(). Also, combination of cpuset_load_balance with any cpuset tests *not* using cpuset_set() causing above type of crash. I have seen this crash on Linux 5.09 and 5.4.rc0 kernel. Any clue will help me in moving forward. https://github.com/linux-test-project/ltp.git top commit: commit ff3c9780438040ab955fdf4167ffae4e612a311d (HEAD -> master, origin/master, origin/HEAD) Author: Petr Vorel <pvo...@suse.cz> Date: Wed Oct 2 12:51:04 2019 +0200 lib: Replace GPL verbose text by SPDX license identifier from library sources for new API. Signed-off-by: Petr Vorel <pvo...@suse.cz> --prabhakar _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list
