09.05.2013 20:33, Lisandro Damián Nicanor Pérez Meyer wrote: > Control: tag -1 - moreinfo > > On Wed 08 May 2013 15:51:30 Michael Tokarev escribió: > [snip] >> Please at least do a kernel stack dump (echo t > /proc/sysrq-trigger), >> find the process in question and post it here. It may be that this bug >> report needs to be reassigned to kernel instead... > > Please find attached the dmesg output of what echo t > /proc/sysrq-trigger > produces before and after starting the process that hangs. > > Do not heasitate in asking for more data (preferently with instructions on > how > to produce them).
Before: [ 2946.900461] make S ffff88003ba70200 0 2937 2933 0x00000000 [ 2946.900461] ffff88003ba70200 0000000000000082 ffff88003c7848c8 ffff88003badc930 [ 2946.900461] 0000000000013780 ffff88003c7c1fd8 ffff88003c7c1fd8 ffff88003ba70200 [ 2946.900461] 0000000063339558 ffffffff81070c4d 0000000000000246 ffff88003c7c1f00 [ 2946.900461] Call Trace: [ 2946.900461] [<ffffffff81070c4d>] ? arch_local_irq_save+0x11/0x17 [ 2946.900461] [<ffffffff81049534>] ? do_wait+0x19b/0x20f [ 2946.900461] [<ffffffff8103700c>] ? test_tsk_need_resched+0xa/0x13 [ 2946.900461] [<ffffffff8103f815>] ? wake_up_new_task+0xb9/0xc2 [ 2946.900461] [<ffffffff8104a688>] ? sys_wait4+0x98/0xb5 [ 2946.900461] [<ffffffff810486f7>] ? task_stopped_code+0x37/0x37 [ 2946.900461] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b [ 2946.900461] doxygen R running task 0 2941 2937 0x00000000 [ 2946.900461] ffff88003badc930 0000000000000086 0000000000000000 ffff88003dbe6e60 [ 2946.900461] 0000000000013780 ffff88003c79bfd8 ffff88003c79bfd8 ffff88003badc930 [ 2946.900461] 00002b18c7ca643c 0000000000000000 0000000000000000 ffff88003c79a000 [ 2946.900461] Call Trace: [ 2946.900461] [<ffffffff81041e20>] ? __cond_resched+0x1d/0x26 [ 2946.900461] [<ffffffff8134c69a>] ? _cond_resched+0x12/0x1c [ 2946.900461] [<ffffffff8134d2af>] ? down_read+0x9/0x19 [ 2946.900461] [<ffffffff8106d209>] ? fault_in_user_writeable+0x27/0x53 [ 2946.900461] [<ffffffff8106f1cc>] ? do_futex+0x334/0x810 [ 2946.900461] [<ffffffff8106f7c8>] ? sys_futex+0x120/0x154 [ 2946.900461] [<ffffffff810fd5d9>] ? sys_newstat+0x23/0x2b [ 2946.900461] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b [ 2946.900461] doxygen S ffff88003ba716d0 0 2943 2937 0x00000000 [ 2946.900461] ffff88003ba716d0 0000000000000086 ffff88003ffecc00 ffff88003bb95790 [ 2946.900461] 0000000000013780 ffff88003b8abfd8 ffff88003b8abfd8 ffff88003ba716d0 [ 2946.900461] 00002b18c7ca643c ffffffff8106cfc6 00002b18c7ca643c ffff88003b8abcf0 [ 2946.900461] Call Trace: [ 2946.900461] [<ffffffff8106cfc6>] ? get_futex_value_locked+0x2d/0x3d [ 2946.900461] [<ffffffff8106d102>] ? futex_wait_queue_me+0xba/0xd5 [ 2946.900461] [<ffffffff8106dc47>] ? futex_wait+0x10c/0x236 [ 2946.900461] [<ffffffff810c224d>] ? page_evictable+0xf/0x7b [ 2946.900461] [<ffffffff810d0d98>] ? handle_pte_fault+0x739/0x79f [ 2946.900461] [<ffffffff8106ef4d>] ? do_futex+0xb5/0x810 [ 2946.900461] [<ffffffff81350927>] ? do_page_fault+0x2fc/0x337 [ 2946.900461] [<ffffffff81037ed3>] ? set_next_entity+0x32/0x55 [ 2946.900461] [<ffffffff8100d750>] ? __switch_to+0x1e5/0x258 [ 2946.900461] [<ffffffff8106f7c8>] ? sys_futex+0x120/0x154 [ 2946.900461] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b [ 2946.900461] doxygen S ffff88003bb95790 0 2944 2937 0x00000000 [ 2946.900461] ffff88003bb95790 0000000000000086 ffff88003ffecc00 ffff88003badc930 [ 2946.900461] 0000000000013780 ffff88003b8f1fd8 ffff88003b8f1fd8 ffff88003bb95790 [ 2946.900461] 00002b18c7ca643c ffffffff8106cfc6 00002b18c7ca643c ffff88003b8f1cf0 [ 2946.900461] Call Trace: [ 2946.900461] [<ffffffff8106cfc6>] ? get_futex_value_locked+0x2d/0x3d [ 2946.900461] [<ffffffff8106d102>] ? futex_wait_queue_me+0xba/0xd5 [ 2946.900461] [<ffffffff8106dc47>] ? futex_wait+0x10c/0x236 [ 2946.900461] [<ffffffff8106de98>] ? futex_wake+0xe9/0xfb [ 2946.900461] [<ffffffff8106ef4d>] ? do_futex+0xb5/0x810 [ 2946.900461] [<ffffffff81350927>] ? do_page_fault+0x2fc/0x337 [ 2946.900461] [<ffffffff81037ed3>] ? set_next_entity+0x32/0x55 [ 2946.900461] [<ffffffff8100d025>] ? paravirt_write_msr+0xb/0xe [ 2946.900461] [<ffffffff8100d73b>] ? __switch_to+0x1d0/0x258 [ 2946.900461] [<ffffffff8106f7c8>] ? sys_futex+0x120/0x154 [ 2946.900461] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b I assume 2941 (doxygen) is the process in question, whcih is in running state. After: [ 2980.469709] make S ffff88003ba70200 0 2937 2933 0x00000000 [ 2980.469709] ffff88003ba70200 0000000000000082 ffff88003c7848c8 ffff88003badc930 [ 2980.469709] 0000000000013780 ffff88003c7c1fd8 ffff88003c7c1fd8 ffff88003ba70200 [ 2980.469709] 0000000063339558 ffffffff81070c4d 0000000000000246 ffff88003c7c1f00 [ 2980.469709] Call Trace: [ 2980.469709] [<ffffffff81070c4d>] ? arch_local_irq_save+0x11/0x17 [ 2980.469709] [<ffffffff81049534>] ? do_wait+0x19b/0x20f [ 2980.469709] [<ffffffff8103700c>] ? test_tsk_need_resched+0xa/0x13 [ 2980.469709] [<ffffffff8103f815>] ? wake_up_new_task+0xb9/0xc2 [ 2980.469709] [<ffffffff8104a688>] ? sys_wait4+0x98/0xb5 [ 2980.469709] [<ffffffff810486f7>] ? task_stopped_code+0x37/0x37 [ 2980.469709] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b [ 2980.469709] doxygen R running task 0 2941 2937 0x00000004 [ 2980.469709] ffff88003badc930 0000000000000086 0000000000000000 ffff88003dbe6e60 [ 2980.469709] 0000000000013780 ffff88003c79bfd8 ffff88003c79bfd8 ffff88003badc930 [ 2980.469709] 00002b18c7ca643c 0000000000000000 0000000000000000 ffff88003c79a000 [ 2980.469709] Call Trace: [ 2980.469709] [<ffffffff81041e20>] ? __cond_resched+0x1d/0x26 [ 2980.469709] [<ffffffff8134c69a>] ? _cond_resched+0x12/0x1c [ 2980.469709] [<ffffffff8134d2af>] ? down_read+0x9/0x19 [ 2980.469709] [<ffffffff8106d209>] ? fault_in_user_writeable+0x27/0x53 [ 2980.469709] [<ffffffff8106f1cc>] ? do_futex+0x334/0x810 [ 2980.469709] [<ffffffff8106f7c8>] ? sys_futex+0x120/0x154 [ 2980.469709] [<ffffffff810fd5d9>] ? sys_newstat+0x23/0x2b [ 2980.469709] [<ffffffff81352952>] ? system_call_fastpath+0x16/0x1b The same make (2937), and the same doxygen running (2941) with the same stack trace. Is it (2941) killable? Thanks, /mjt -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
