Messages in this thread | | | Subject | Re: [2.6.36-rc7, Power6] LTP Ftrace Stress tests causes KERNEL PANIC and brings the system to xmon | From | Subrata Modak <> | Date | Thu, 21 Oct 2010 14:03:17 +0530 |
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Stefen,
Can you please know your thoughts on this issue ?
Regards-- Subrata
On Thu, 2010-10-14 at 01:04 +0530, Subrata Modak wrote: > Hi, > > Executing LTP Ftrace Stress tests on 2.6.36-rc7, Power6 creates kernel > Panic and xmon is invoked: > > Ways to reproduce the problem: > > Download latest LTP git via: > git://ltp.git.sourceforge.net/gitroot/ltp/ltp > cd ltp > ./configure > make > make install > cd /opt/ltp > ./runltp -f tracing > > You will notice the following kernel panic. Other information from xmon > debugger is also provided. Please note that this was originally discovered in > stable 2.6.35.4. And then again reproduced on 2.6.36-rc7: > ================================================ > Running tests....... > <<<test_start>>> > tag=ftrace-stress-test stime=1286980645 > cmdline="ftrace_stress_test.sh 90" > contacts="" > analysis=exit > <<<test_output>>> > incrementing stop > mkdir: cannot create directory `/opt/ltp/testcases/bin/debugfs': File > exists > Ftrace Stress Test Begin > Unable to handle kernel paging request for data at address > 0xbffffffe0175b688 > Unable to handle kernel paging request for data at address > 0xbffffffe0175b688 > Faulting instruction address: 0xc000000000101414 > cpu 0Faulting instrucxtion address: 0x1c000000000101414: > Vector: 300 (Data Access) at [c0000000d4a8ed10] > pc: c000000000101414: .update_curr+0x31c/0x410 > lr: c0000000001013a4: .update_curr+0x2ac/0x410 > sp: c0000000d4a8ef90 > msr: 8000000000001032 > dar: bffffffe0175b688 > dsisr: 40000000 > current = 0xc0000000d49c1b00 > paca = 0xc000000007fc8700 > pid = 1667, comm = ftrace_profile_ > enter ? for help > [c0000000d4a8f040] c00000000010164c .task_tick_fair+0x88/0x30c > [c0000000d4a8f0f0] c00000000011f3a0 .scheduler_tick+0x228/0x6f0 > [c0000000d4a8f1a0] c0000000001494e4 .update_process_times+0xd0/0x120 > [c0000000d4a8f240] c00000000018f7d4 .tick_sched_timer+0x114/0x194 > [c0000000d4a8f2f0] c000000000178678 .__run_hrtimer+0x28c/0x3d8 > [c0000000d4a8f3a0] c000000000178cd8 .hrtimer_interrupt+0x18c/0x3c8 > [c0000000d4a8f4b0] c0000000000448f0 .timer_interrupt+0x2b8/0x514 > [c0000000d4a8f550] c000000000003728 decrementer_common+0x128/0x180 > --- Exception: 901 (Decrementer) at > c0000000000f99a4 .mutex_spin_on_owner+0x110/0x1bc > [c0000000d4a8f8d0] c000000000bcf600 .__mutex_lock_slowpath+0xe0/0x3f0 > [c0000000d4a8f9c0] c000000000bd0520 .mutex_lock+0xb0/0xe4 > [c0000000d4a8fa50] c000000000211978 .tracepoint_probe_unregister > +0x58/0x12c > [c0000000d4a8fb00] c00000000021a078 .unregister_ftrace_graph+0xc4/0x114 > [c0000000d4a8fb90] c00000000021b864 .ftrace_profile_write+0x4b0/0x530 > [c0000000d4a8fcc0] c00000000031e35c .vfs_write+0x1ac/0x338 > [c0000000d4a8fd70] c000000000009794 .return_to_handler+0x0/0x34 > [c0000000d4a8fe30] c000000000009794 .return_to_handler+0x0/0x34 > --- Exception: c00 (System Call) at 000000000fecfc94 > SP (ffdcf9c0) is in userspace > 1:mon> cpu 0x0: Vector: 300 (Data Access) at [c0000000cfa0f5f0] > pc: c000000000101414: .update_curr+0x31c/0x410 > lr: c0000000001013a4: .update_curr+0x2ac/0x410 > sp: c0000000cfa0f870 > msr: 8000000000001032 > dar: bffffffe0175b688 > dsisr: 40000000 > current = 0xc0000000d48cb600 > paca = 0xc000000007fc8000 > pid = 1909, comm = cat > > 1:mon> > 1:mon> e > cpu 0x1: Vector: 300 (Data Access) at [c0000000d4a8ed10] > pc: c000000000101414: .update_curr+0x31c/0x410 > lr: c0000000001013a4: .update_curr+0x2ac/0x410 > sp: c0000000d4a8ef90 > msr: 8000000000001032 > dar: bffffffe0175b688 > dsisr: 40000000 > current = 0xc0000000d49c1b00 > paca = 0xc000000007fc8700 > pid = 1667, comm = ftrace_profile_ > > 1:mon> dl > > <4>------------[ cut here ]------------ > <4>WARNING: at kernel/trace/ring_buffer.c:2227 > <4>Modules linked in: sunrpc ipv6 uinput ehea ibmvscsic > scsi_transport_srp scsi_tgt [last unloaded: scsi_wait_scan] > <4>NIP: c000000000222b3c LR: c000000000222b1c CTR: 0000000000000001 > <4>REGS: c0000000d4a89670 TRAP: 0700 Not tainted (2.6.36-rc7) > <4>MSR: 8000000000021032 <ME,CE,IR,DR> CR: 48242482 XER: 20000000 > <4>TASK = c0000000d49c1b00[1667] 'ftrace_profile_' THREAD: > c0000000d4a8c000 CPU: 1 > <4>GPR00: 0000000000000001 c0000000d4a898f0 c0000000017354c0 > 0000000000000036 > <4>GPR04: 0000000000000000 ffffffffffffffff 0000000000000007 > 0000000000f791ca > <4>GPR08: 0000000000f80c95 c00000000187d8a8 c0000000018803d0 > 0000000000000001 > <4>GPR12: 0000000028242482 c000000007fc8700 0000000000000000 > 00000000100f0000 > <4>GPR16: 00000000100f4a54 00000000100d3650 00000000100f4bfc > 00000000100f4b6c > <4>GPR20: 000000000000001c 0000000000000001 c0000000d4a89e40 > c000000001879e88 > <4>GPR24: 0000000000000000 0000000000000000 c000000001640248 > 0000000000000000 > <4>GPR28: 0000000000000010 c00000000187d8a8 c0000000016a9400 > c0000000d4a898f0 > <4>NIP [c000000000222b3c] .ring_buffer_lock_reserve+0x1a0/0x2a4 > <4>LR [c000000000222b1c] .ring_buffer_lock_reserve+0x180/0x2a4 > <4>Call Trace: > <4>Instruction dump: > <4>54c7014a 78c585a2 78c6c622 489c22a5 60000000 e93e8000 e95e8030 > e9691d90 > <4>880a0013 396b0001 68000001 f9691d90 <0b000000> e93e8000 2fa00000 > e9691da0 > <4>---[ end trace 54ff4f71b2972eb9 ]--- > <1>Unable to handle kernel paging request for data at address > 0xbffffffe0175b688 > <1>Unable to handle kernel paging request for data at address > 0xbffffffe0175b688 > <1>Faulting instruction address: 0xc000000000101414 > <1>Faulting instruction address: 0xc000000000101414 > > 1:mon> r > R00 = 000000000003b578 R16 = c0000000d4a8f420 > R01 = c0000000d4a8ef90 R17 = c000000001c45688 > R02 = c0000000017354c0 R18 = c0000000d4a8f410 > R03 = 0000000000000000 R19 = 0000000000000000 > R04 = 0000000000000030 R20 = 0000000000000000 > R05 = 0000000000000030 R21 = c000000001817610 > R06 = 0000000000000000 R22 = 7fffffffffffffff > R07 = 000000000003b5d2 R23 = 0000000000000001 > R08 = fffffffe00000000 R24 = c0000000017e0800 > R09 = c0000000de004580 R25 = 0000003c9482245c > R10 = c00000000175b688 R26 = 000000038aa347f0 > R11 = c0000000017d0800 R27 = c0000000d49c1b00 > R12 = 0000000028242428 R28 = c0000000d087f820 > R13 = c000000007fc8700 R29 = 00000000008b9528 > R14 = 0000000000000000 R30 = c0000000016a3d48 > R15 = 00000000100f0000 R31 = c0000000d4a8ef90 > pc = c000000000101414 .update_curr+0x31c/0x410 > lr = c0000000001013a4 .update_curr+0x2ac/0x410 > msr = 8000000000001032 cr = 28242428 > ctr = c0000000000fdbfc xer = 0000000000000000 trap = 300 > dar = bffffffe0175b688 dsisr = 40000000 > > 1:mon> S > msr = 8000000000001032 sprg0= 0000000000000000 > pvr = 00000000003e0400 sprg1= c000000007fc8700 > dec = 0000000078006b92 sprg2= c000000007fc8700 > sp = c0000000d4a8e680 sprg3= 0000000000000001 > toc = c0000000017354c0 dar = bffffffe0175b688 > > 1:mon> t > [c0000000d4a8f040] c00000000010164c .task_tick_fair+0x88/0x30c > [c0000000d4a8f0f0] c00000000011f3a0 .scheduler_tick+0x228/0x6f0 > [c0000000d4a8f1a0] c0000000001494e4 .update_process_times+0xd0/0x120 > [c0000000d4a8f240] c00000000018f7d4 .tick_sched_timer+0x114/0x194 > [c0000000d4a8f2f0] c000000000178678 .__run_hrtimer+0x28c/0x3d8 > [c0000000d4a8f3a0] c000000000178cd8 .hrtimer_interrupt+0x18c/0x3c8 > [c0000000d4a8f4b0] c0000000000448f0 .timer_interrupt+0x2b8/0x514 > [c0000000d4a8f550] c000000000003728 decrementer_common+0x128/0x180 > --- Exception: 901 (Decrementer) at > c0000000000f99a4 .mutex_spin_on_owner+0x110/0x1bc > [c0000000d4a8f8d0] c000000000bcf600 .__mutex_lock_slowpath+0xe0/0x3f0 > [c0000000d4a8f9c0] c000000000bd0520 .mutex_lock+0xb0/0xe4 > [c0000000d4a8fa50] c000000000211978 .tracepoint_probe_unregister > +0x58/0x12c > [c0000000d4a8fb00] c00000000021a078 .unregister_ftrace_graph+0xc4/0x114 > [c0000000d4a8fb90] c00000000021b864 .ftrace_profile_write+0x4b0/0x530 > [c0000000d4a8fcc0] c00000000031e35c .vfs_write+0x1ac/0x338 > [c0000000d4a8fd70] c000000000009794 .return_to_handler+0x0/0x34 > [c0000000d4a8fe30] c000000000009794 .return_to_handler+0x0/0x34 > --- Exception: c00 (System Call) at 000000000fecfc94 > SP (ffdcf9c0) is in userspace > > 1:mon> u > SLB contents of cpu 1 > 00 c000000008000000 40004f7ca3000500 1T ESID= c00000 VSID= > 4f7ca3 LLP:100 > 01 d000000008000000 4000eb71b0000400 1T ESID= d00000 VSID= > eb71b0 LLP: 0 > 14 0000000008000000 0000489b22861c80 256M ESID= 0 VSID= > 489b22861 LLP: 0 > 15 00000000f8000000 000053d29a3f6c80 256M ESID= f VSID= > 53d29a3f6 LLP: 0 > 16 0000000018000000 0000495a90e7cc80 256M ESID= 1 VSID= > 495a90e7c LLP: 0 > 17 f000000008000000 4000235bcc000500 1T ESID= f00000 VSID= > 235bcc LLP:100 > 18 bffffffe08000000 0000000000000c80 256M ESID=bffffffe0 VSID= > 0 LLP: 0 > 1:mon> > ================================================ > > However Peter Zijlstraś proposed patch did not fix this issue. The patch > was > posted to LTP: > http://marc.info/?l=ltp-list&m=128696942432669&w=2 > > The Kernel paniked even after the patch. However this time th message was > different. Other xmon output is also shown below: > > ================================================ > Ftrace Stress Test Begin > > Unable to handle kernel paging request for data at address 0x00000000 > Faulting instruction address: 0xc0000000002133f0 > cpu 0x2: Vector: 300 (Data Access) at [c0000000d9f8b560] > pc: c0000000002133f0: .trace_clock_global+0xb4/0x2a0 > lr: c000000000213458: .trace_clock_global+0x11c/0x2a0 > sp: c0000000d9f8b7e0 > msr: 800000000200b032 > dar: 0 > dsisr: 40000000 > current = 0xc0000000d9f7d100 > paca = 0xc000000007fc8e00 > pid = 1667, comm = ftrace_stack_tr > Unrecoverable FP Unavailable Exception 800 at c0000000016a9540 > cpu 0x0: Vector: 8Unable to handle0 kernel paging r0 equest for data (at > address 0xbffFffffe0175b688 > PU UnavaFaulting instruciltion address: 0xac0000000001017fcb > le) at [c0000000d9f8a6a0] > p pc: c0000000016a9540: etnetre r? ?f ofro rh ehlepl > > > lr: [c000000000016a9540: key_type_dns_resolver+0x15110/0x365f8 > sp: c0000000018804e8 > msr: 8000000000001032 > current = 0xc0000000d838d100 > paca = 0xc000000007fc8000 > pid = 1668, comm = ftrace_stack_ma > pid = 1668, cc0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8b9b0] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8ba40] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8baf0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8bb80] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8bc40] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8bcd0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8bd40] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8bdd0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8be90] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8bfa0] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8c030] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8c0e0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8c170] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8c230] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8c2c0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8c330] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8c3c0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8c480] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8c590] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8c620] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8c6d0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8c760] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8c820] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8c8b0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8c920] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8c9b0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8ca70] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8cb80] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8cc10] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8ccc0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8cd50] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8ce10] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8cea0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8cf10] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8cfa0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8d060] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8d170] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8d200] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8d2b0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8d340] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8d400] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8d490] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8d500] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8d590] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8d650] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8d760] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8d7f0] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8d8a0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8d930] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8d9f0] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8da80] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8daf0] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8db80] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8dc40] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8dd50] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8dde0] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8de90] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8df20] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8dfe0] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8e070] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8e0e0] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8e170] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8e230] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > 2:mon> cpu 0x1: Vector: 300 (Data Access) at [c0000000d9fab5f0] > pc: c0000000001017fc: .update_curr+0x31c/0x410 > lr: c00000000010178c: .update_curr+0x2ac/0x410 > sp: c0000000d9fab870 > msr: 8000000000001032 > dar: bffffffe0175b688 > dsisr: 40000000 > current = 0xc0000000d9fa0000 > paca = 0xc000000007fc8700 > pid = 1669, comm = ftrace_tracing_ > > 2:mon> e > cpu 0x2: Vector: 300 (Data Access) at [c0000000d9f8b560] > pc: c0000000002133f0: .trace_clock_global+0xb4/0x2a0 > lr: c000000000213458: .trace_clock_global+0x11c/0x2a0 > sp: c0000000d9f8b7e0 > msr: 800000000200b032 > dar: 0 > dsisr: 40000000 > current = 0xc0000000d9f7d100 > paca = 0xc000000007fc8e00 > pid = 1667, comm = ftrace_stack_tr > > 2:mon> dl > > <4>------------[ cut here ]------------ > <4>WARNING: at kernel/trace/ring_buffer.c:2227 > <4>Modules linked in: sunrpc ipv6 uinput ehea ibmvscsic scsi_transport_srp > scsi_tgt [last unloaded: scsi_wait_scan] > <4>NIP: c0000000002230cc LR: c0000000002230ac CTR: 0000000000000001 > <4>REGS: c0000000d9f89f70 TRAP: 0700 Not tainted (2.6.36-rc7) > <4>MSR: 8000000000021032 <ME,CE,IR,DR> CR: 48842482 XER: 20000000 > <4>TASK = c0000000d838d100[1668] 'ftrace_stack_ma' THREAD: c0000000d9f8c000 > CPU: 0 > <4>GPR00: 0000000000000001 c0000000d9f8a1f0 c000000001735590 0000000000000036 > <4>GPR04: 0000000000000000 ffffffffffffffff 0000000000000007 0000000001d86c30 > <4>GPR08: 0000000001d88a6b c00000000187d9a8 c0000000018804d0 0000000000000001 > <4>GPR12: 0000000028842482 c000000007fc8000 0000000000000002 00000000100f765c > <4>GPR16: 00000000100d22f8 00000000100f9790 000000000000001e 0000000000000001 > <4>GPR20: 000000000000001c 0000000000000001 c0000000d9f8a740 c000000001879f88 > <4>GPR24: 0000000000000000 0000000000000000 c000000001640248 0000000000000000 > <4>GPR28: 0000000000000010 c00000000187d9a8 c0000000016a9400 c0000000d9f8a1f0 > <4>NIP [c0000000002230cc] .ring_buffer_lock_reserve+0x1a0/0x2a4 > <4>LR [c0000000002230ac] .ring_buffer_lock_reserve+0x180/0x2a4 > <4>Call Trace: > <4>Instruction dump: > <4>54c7014a 78c585a2 78c6c622 489c22c5 60000000 e93e8000 e95e8030 e9691d90 > <4>880a0013 396b0001 68000001 f9691d90 <0b000000> e93e8000 2fa00000 e9691da0 > <4>---[ end trace f749046f770eb249 ]--- > <1>Unable to handle kernel paging request for data at address 0x00000000 > <1>Faulting instruction address: 0xc0000000002133f0 > <0>Unrecoverable FP Unavailable Exception 800 at c0000000016a9540 > <1>Unable to handle kernel paging request for data at address > 0xbffffffe0175b688 > <1>Faulting instruction address: 0xc0000000001017fc > 2:mon> r > R00 = 0000000000000377 R16 = c0000000d9f8b650 > R01 = c0000000d9f8b7e0 R17 = 0000000000000000 > R02 = c000000001735590 R18 = 0000000000000000 > R03 = 0000000000000000 R19 = c0000000ccc7d3b8 > R04 = 0000000000000020 R20 = 0000000000000000 > R05 = 0000000000000020 R21 = 00000000000000d0 > R06 = 0000000000000001 R22 = c0000000de004e00 > R07 = 0000000000000000 R23 = 0000000000000000 > R08 = 0000000000025420 R24 = c000000001879f00 > R09 = 0000000080000002 R25 = 0000000000000000 > R10 = 00000000e26ea160 R26 = c000000001879e00 > R11 = 000000000010c146 R27 = 0000003c5f642816 > R12 = 0000000000000002 R28 = c000000001879e00 > R13 = c000000007fc8e00 R29 = c000000001879e00 > R14 = 0000000000000000 R30 = c0000000016a9128 > R15 = 00000000100f0000 R31 = c0000000d9f8b7e0 > pc = c0000000002133f0 .trace_clock_global+0xb4/0x2a0 > lr = c000000000213458 .trace_clock_global+0x11c/0x2a0 > msr = 800000000200b032 cr = 28842442 > ctr = c000000000011d24 xer = 0000000000000000 trap = 300 > dar = 0000000000000000 dsisr = 40000000 > > 2:mon> S > msr = 8000000000001032 sprg0= 0000000000000000 > pvr = 00000000003e0400 sprg1= c000000007fc8e00 > dec = 000000007b5e21d9 sprg2= c000000007fc8e00 > sp = c0000000d9f8aed0 sprg3= 0000000000000002 > toc = c000000001735590 dar = 0000000000000000 > > 2:mon> t > [c0000000d9f8b8a0] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8b9b0] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8ba40] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8baf0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8bb80] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8bc40] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8bcd0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8bd40] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8bdd0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8be90] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8bfa0] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8c030] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8c0e0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8c170] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8c230] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8c2c0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8c330] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8c3c0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8c480] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8c590] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8c620] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8c6d0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8c760] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8c820] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8c8b0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8c920] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8c9b0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8ca70] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8cb80] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8cc10] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8ccc0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8cd50] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8ce10] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8cea0] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8cf10] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8cfa0] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8d060] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8d170] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8d200] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8d2b0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8d340] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8d400] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8d490] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8d500] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8d590] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8d650] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8d760] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8d7f0] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8d8a0] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8d930] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8d9f0] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8da80] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8daf0] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8db80] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8dc40] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > [c0000000d9f8dd50] c000000000223178 .ring_buffer_lock_reserve+0x24c/0x2a4 > [c0000000d9f8dde0] c00000000022d6f4 .trace_buffer_lock_reserve+0x58/0xe4 > [c0000000d9f8de90] c00000000022ec9c > .trace_current_buffer_lock_reserve+0x44/0x6c > [c0000000d9f8df20] c000000000011c5c .ftrace_raw_event_hcall_entry+0x7c/0x144 > [c0000000d9f8dfe0] c000000000096624 .__trace_hcall_entry+0xa0/0xec > [c0000000d9f8e070] c00000000009786c .plpar_hcall_norets+0x50/0xd0 > [c0000000d9f8e0e0] c0000000000749c8 .__spin_yield+0x130/0x15c > [c0000000d9f8e170] c000000000213458 .trace_clock_global+0x11c/0x2a0 > [c0000000d9f8e230] c0000000002226b0 .rb_reserve_next_event+0x20c/0x804 > > 2:mon> u > SLB contents of cpu 2 > 00 c000000008000000 40004f7ca3000500 1T ESID= c00000 VSID= 4f7ca3 > LLP:100 > 01 d000000008000000 4000eb71b0000400 1T ESID= d00000 VSID= eb71b0 > LLP: 0 > 28 f000000008000000 4000235bcc000500 1T ESID= f00000 VSID= 235bcc > LLP:100 > 38 0000000008000000 0000da39727a1c80 256M ESID= 0 VSID= da39727a1 > LLP: 0 > 39 00000000f8000000 0000e570ea336c80 256M ESID= f VSID= e570ea336 > LLP: 0 > 40 0000000018000000 0000daf8e0dbcc80 256M ESID= 1 VSID= daf8e0dbc > LLP: 0 > ================================================ > > Regards-- > Subrata >
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