On Fri, 26 Feb 2016 01:53:47 +0900 Taeung Song <treeze.tae...@gmail.com> wrote:
> > The underlying cause of this problem is not because of > the python script. This problem have relevance to tracing/syscalls > as below. > > # cat > /sys/kernel/debug/tracing/events/syscalls/sys_enter_io_getevents/format > name: sys_enter_io_getevents > ID: 739 > format: > field:unsigned short common_type; offset:0;size:2;signed:0; > field:unsigned char common_flags; offset:2;size:1;signed:0; > field:unsigned char common_preempt_count; offset:3;size:1;signed:0; > field:int common_pid; offset:4;size:4;signed:1; > field:int nr; offset:8;size:4;signed:1; > field:aio_context_t ctx_id; offset:16;size:8;signed:0; > field:long min_nr; offset:24;size:8;signed:0; > field:long nr; offset:32;size:8;signed:0; > field:struct io_event * events; offset:40;size:8;signed:0; > field:struct timespec * timeout; offset:48;size:8;signed:0; > > print fmt: "ctx_id: 0x%08lx, min_nr: 0x%08lx, nr: 0x%08lx, events: > 0x%08lx, timeout: 0x%08lx", ((unsigned long)(REC->ctx_id)), ((unsigned > long)(REC->min_nr)), ((unsigned long)(REC->nr)), ((unsigned > long)(REC->events)), ((unsigned long)(REC->timeout)) > > > As you see, there are duplicated variable name among fields. > So I renamed the variable name 'nr' to 'syscall_nr' to avoid this > duplication. As you know 'nr' in print_syscall_enter() mean > system call number so, I changed 'nr' to 'syscall_nr'(IMHO). > The above should have been in the change log. That makes much more sense. Thanks! -- Steve
