Messages in this thread | | | Date | Tue, 16 Oct 2012 00:11:01 -0700 | From | Greg KH <> | Subject | Re: Fix memory leak in binder--version2 |
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On Mon, Oct 15, 2012 at 05:39:22PM -0700, Arve Hjønnevåg wrote: > On Mon, Oct 15, 2012 at 4:58 PM, Greg KH <gregkh@linuxfoundation.org> wrote: > > On Mon, Oct 15, 2012 at 04:55:21PM -0700, Arve Hjønnevåg wrote: > >> On Mon, Oct 15, 2012 at 3:52 PM, Greg KH <gregkh@linuxfoundation.org> wrote: > >> > On Mon, Oct 15, 2012 at 07:20:01AM +0000, Tu, Xiaobing wrote: > >> >> After enabling kmemleak and run monkey, following memleak is reported: > >> >> unreferenced object 0xeed27f80 (size 64): > >> >> comm "Binder_8", pid 641, jiffies 4294946341 (age 2275.810s) > >> >> hex dump (first 32 bytes): > >> >> 4f dd 00 00 84 7f d2 ee 84 7f d2 ee 01 00 00 00 O............... > >> >> 00 00 00 00 00 00 00 00 00 aa 4c d7 00 00 00 00 ..........L..... > >> >> backtrace: > >> >> [<c184fabc>] kmemleak_alloc+0x3c/0xa0 > >> >> [<c12f391e>] kmem_cache_alloc_trace+0x9e/0x180 > >> >> [<c1668bb5>] binder_thread_write+0xcf5/0x23a0 > >> >> [<c166b091>] binder_ioctl+0x1f1/0x530 > >> >> [<c130dcf6>] do_vfs_ioctl+0x86/0x5e0 > >> >> [<c130e282>] sys_ioctl+0x32/0x60 > >> >> [<c1872e01>] syscall_call+0x7/0xb > >> >> [<ffffffff>] 0xffffffff > >> >> > >> >> The work item in async_todo list is not freed when binder released. > >> >> Also the async transaction should also be freed in binder_release_work. > >> >> > >> >> Signed-off-by: Leon Ma <xindong.ma@intel.com> > >> >> Signed-off-by: Di Zhang <di.zhang@intel.com> > >> >> --- > >> >> drivers/staging/android/binder.c | 6 ++++++ > >> >> 1 files changed, 6 insertions(+), 0 deletions(-) > >> > > >> > Nice fix, but next time can you at least use scripts/get_maintainer.pl > >> > to figure out who to send this to? I'll queue it up soon, but it took > >> > akpm to point me at this for me to notice it. > >> > >> This patch was just pointer out to me as well. I have a similar fix > >> queued up at https://android-review.googlesource.com/#/c/43801/ that > >> is still being tested. It fixes this leak and a theoretical leak of > >> death notification objects. > > > > Ok, should I hold off applying this patch and wait for your patch > > instead? > > > > I just sent two patches, but they are not fully tested yet.
Ok, care to test them and after that, resend them with the changes I noted in the changelog section of the patch?
thanks,
greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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