Problem Description ================= tracing test will pop out some calltrace Expected Behavior ================ It should be OK. Observed Behavior ================ BUG: sleeping function called from invalid context at /buildarea3/fast_build/BUILD/WRLinux_5.0.1-WIND00386015-fsl-imx6/14406/bitbake_b uil8 in_atomic(): 1, irqs_disabled(): 128, pid: 1944, name: jbd2/loop0-8 [<80017f18>] (unwind_backtrace+0x0/0x104) from [<806aff68>] (dump_stack+0x20/0x24) [<806aff68>] (dump_stack+0x20/0x24) from [<80069404>] (__might_sleep+0x11c/0x120) [<80069404>] (__might_sleep+0x11c/0x120) from [<806ba494>] (rt_spin_lock+0x2c/0x38) [<806ba494>] (rt_spin_lock+0x2c/0x38) from [<80017d54>] (unwind_frame+0x350/0x514) [<80017d54>] (unwind_frame+0x350/0x514) from [<80012c9c>] (walk_stackframe+0x34/0x40) [<80012c9c>] (walk_stackframe+0x34/0x40) from [<80012d44>] (save_stack_trace_tsk+0x9c/0xa0) [<80012d44>] (save_stack_trace_tsk+0x9c/0xa0) from [<80012d74>] (save_stack_trace+0x2c/0x30) [<80012d74>] (save_stack_trace+0x2c/0x30) from [<800cf8f8>] (__ftrace_trace_stack+0x1f8/0x228) [<800cf8f8>] (__ftrace_trace_stack+0x1f8/0x228) from [<800cfd5c>] (__trace_stack+0x20/0x28) [<800cfd5c>] (__trace_stack+0x20/0x28) from [<806b1e8c>] (check_critical_timing+0x1e4/0x200) [<806b1e8c>] (check_critical_timing+0x1e4/0x200) from [<800d720c>] (trace_preempt_on+0x118/0x134) [<800d720c>] (trace_preempt_on+0x118/0x134) from [<806bd148>] (sub_preempt_count+0xbc/0xf4) [<806bd148>] (sub_preempt_count+0xbc/0xf4) from [<8006ba34>] (migrate_disable+0x68/0xcc) [<8006ba34>] (migrate_disable+0x68/0xcc) from [<80130dc4>] (kmem_cache_free+0x24/0x18c) [<80130dc4>] (kmem_cache_free+0x24/0x18c) from [<7f00b1d4>] (jbd2_journal_put_journal_head+0xf4/0x170 [jbd2]) [<7f00b1d4>] (jbd2_journal_put_journal_head+0xf4/0x170 [jbd2]) from [<8000e938>] (return_to_handler+0x0/0x18)
N/A
1. Build a preempt-rt kernel and rootfs on LX29 2. deploy and boot the board with NFS rootfs 3. run test cd /opt/wr-test/testcases/kts/tracing# ./runtest.sh
