Messages in this thread | | | Subject | Re: memleaks, acpi + ext4 + tty | From | Catalin Marinas <> | Date | Sat, 29 Aug 2009 22:41:21 +0100 |
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On Fri, 2009-08-28 at 09:52 -0700, Luis R. Rodriguez wrote: > On Fri, Aug 28, 2009 at 9:32 AM, Catalin > Marinas<catalin.marinas@arm.com> wrote: > > "Luis R. Rodriguez" <mcgrof@gmail.com> wrote: > >> unreferenced object 0xffff880006ce0400 (size 1024): > >> comm "mplayer", pid 5293, jiffies 4295366945 > >> backtrace: > >> [<ffffffff81121fad>] create_object+0x13d/0x2d0 > >> [<ffffffff81122265>] kmemleak_alloc+0x25/0x60 > >> [<ffffffff81119f3b>] __kmalloc+0x16b/0x250 > >> [<ffffffff813021b0>] tty_buffer_request_room+0xc0/0x190 > >> [<ffffffff8130244c>] tty_insert_flip_string+0x3c/0xb0 > >> [<ffffffff81302f49>] pty_write+0x49/0x70 > >> [<ffffffff812fd3b0>] n_tty_write+0x1c0/0x450 > >> [<ffffffff812f9ec1>] tty_write+0x1a1/0x290 > >> [<ffffffff81124518>] vfs_write+0xb8/0x1a0 > >> [<ffffffff81124fcc>] sys_write+0x4c/0x80 > >> [<ffffffff81011f02>] system_call_fastpath+0x16/0x1b > >> [<ffffffffffffffff>] 0xffffffffffffffff > > > > It could be a real leak as you get several of these. I cc'ed Greg KH > > for any suggestions he may have. It looks like it only happens when > > running mplayer. > > It took me a while to figure out how to reproduce, and it really > didn't make sense to see this playing video, why would playing video > affect tty?
Maybe mplayer is just opening the tty for some user interaction.
I managed to the same report just using "top" but it is not persistent, so it may be a false positive.
-- Catalin
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