[Bugme-new] [Bug 20282] New: kmemleak after inserting DVB stick

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Wed Oct 13 10:10:32 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=20282

           Summary: kmemleak after inserting DVB stick
           Product: v4l-dvb
           Version: unspecified
    Kernel Version: 2.6.35.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dvb-usb
        AssignedTo: v4l-dvb_dvb-usb at kernel-bugs.osdl.org
        ReportedBy: toralf.foerster at gmx.de
        Regression: No


This kmemleaks appears after inserting and removing a "Terratec Cinergy T USB
XXS (HD)/ T3" in/from my ThinkPad T400 runnign a stable Gentoo Linux :

tfoerste at n22 ~ $ cat /sys/kernel/debug/kmemleak
unreferenced object 0xf399c860 (size 32):
  comm "modprobe", pid 15622, jiffies 25570567 (age 426.808s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<c1232647>] kmemleak_alloc+0x27/0x50
    [<c109cc9f>] kmem_cache_alloc+0x9f/0xe0
    [<fc14f91d>] dib0700_rc_setup+0x7d/0x120 [dvb_usb_dib0700]
    [<fc14fa54>] dib0700_probe+0x94/0xb0 [dvb_usb_dib0700]
    [<f81015d4>] usb_probe_interface+0xf4/0x1c0 [usbcore]
    [<c118bd7b>] driver_probe_device+0x7b/0x190
    [<c118bf21>] __driver_attach+0x91/0xa0
    [<c118b638>] bus_for_each_dev+0x48/0x70
    [<c118bc09>] driver_attach+0x19/0x20
    [<c118b017>] bus_add_driver+0x187/0x250
    [<c118c1b5>] driver_register+0x65/0x120
    [<f81012bc>] usb_register_driver+0x7c/0x140 [usbcore]
    [<fc15e030>] 0xfc15e030
    [<c100112d>] do_one_initcall+0x2d/0x180
    [<c105f269>] sys_init_module+0x99/0x1e0
    [<c1002d97>] sysenter_do_call+0x12/0x26

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