Messages in this thread | | | Date | Thu, 27 Aug 2009 18:10:53 -0400 | From | Gregory Haskins <> | Subject | Re: FTRACE: regression in 31-rc7 |
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Steven Rostedt wrote: > On Thu, 27 Aug 2009, Gregory Haskins wrote: > >> Hi Steve, >> >> Steven Rostedt wrote: >> instrumented for some reason. >>> Hmm, so you think something with the modules broke? I can test that out >>> here. >> Thats my (admittedly fairly ignorant) theory based on the limited data >> samples I have in front of me. :) >> >> If I get a chance later, I will try to do something more scientific, or >> at least a bisect. > > I just did this:
Sorry, was away from the computer for a while...
In light of these reports, I suspect this may either be some kind of operator error, or a bad build or something. I will retry -rc7 with a clean build later and see if it still reproduces. Until then, apologies for the noise.
Kind Regards, -Greg
> > # uname -r > 2.6.31-rc7 > # echo :mod:ext3 > set_ftrace_filter > # echo function_graph > current_tracer > # cat trace > # tracer: function_graph > # > # CPU DURATION FUNCTION CALLS > # | | | | | | | > 1) 6.928 us | ext3_permission(); > 1) 1.234 us | ext3_permission(); > ------------------------------------------ > 1) gdm-bin-3477 => pcscd-2951 > ------------------------------------------ > > 1) 1.306 us | ext3_permission(); > 1) 1.314 us | ext3_permission(); > 1) 1.244 us | ext3_permission(); > 1) 1.364 us | ext3_permission(); > 1) 1.251 us | ext3_permission(); > 1) 1.473 us | ext3_permission(); > 1) 1.306 us | ext3_permission(); > 1) 1.401 us | ext3_permission(); > 1) 1.243 us | ext3_permission(); > 1) 1.301 us | ext3_permission(); > 1) 1.439 us | ext3_permission(); > 1) 1.239 us | ext3_permission(); > 1) 1.331 us | ext3_permission(); > 1) 1.423 us | ext3_permission(); > 1) 1.243 us | ext3_permission(); > 1) 1.321 us | ext3_permission(); > ------------------------------------------ > 1) pcscd-2951 => gdm-bin-3477 > ------------------------------------------ > > 1) 2.567 us | ext3_permission(); > 1) 1.139 us | ext3_permission(); > 1) 2.329 us | ext3_permission(); > 1) 1.246 us | ext3_permission(); > 1) 1.321 us | ext3_permission(); > 1) 0.989 us | ext3_permission(); > 1) 1.261 us | ext3_permission(); > 1) 1.209 us | ext3_permission(); > 1) 1.221 us | ext3_permission(); > 1) 0.968 us | ext3_permission(); > 1) 2.319 us | ext3_permission(); > 1) 1.221 us | ext3_permission(); > 1) 2.199 us | ext3_permission(); > 1) 1.269 us | ext3_permission(); > ------------------------------------------ > 1) gdm-bin-3477 => bash-3198 > ------------------------------------------ > > 1) 2.852 us | ext3_permission(); > 1) | ext3_readdir() { > 1) 1.249 us | free_rb_tree_fname(); > 1) | ext3_htree_fill_tree() { > 1) | htree_dirblock_to_tree() { > 1) | ext3_bread() { > 1) | ext3_getblk() { > 1) | ext3_get_blocks_handle() { > 1) 1.046 us | ext3_block_to_path(); > > > This is with the latest Linus git: > > commit 1e23502cc57cef33455ac7cb9111e3c6d991a894 > Merge: e99b1f2... 3161e45... > Author: Linus Torvalds <torvalds@linux-foundation.org> > Date: Wed Aug 26 20:54:48 2009 -0700 > > -- Steve >
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