(I guess you didn't notice I've also forwarded the bug report to LKML? http://marc.info/?l=linux-kernel&m=128737193919500&w=2)
Subrata Modak wrote: > Stefen, > > Can you please know your thoughts on this issue ? > Stefen? Steven? :) > 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: >> ... >> >> 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: >> So they are 2 different bugs, and Peter's patch fixed the first one. But that patch is too bug for .36.. For the second bug, as I said, it's a dead loop, and it's PowerPC specific, so better have someone in PPC fixed it, and Steven has proposed to add recursive check. ... >> 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 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
