Re: 2.6.0: Badness in pci_find_subsys!!

Valdis.Kletnieks_at_vt.edu
Date: 07/25/03

  • Next message: Jeff Sipek: "Re: Net device byte statistics" 
    To: Douglas J Hunley <doug@hunley.homeip.net>
Date:	Thu, 24 Jul 2003 23:45:29 -0400

    On Thu, 24 Jul 2003 13:26:01 EDT, Douglas J Hunley <doug@hunley.homeip.net> said:

    > Just had my athlon box lock-up solid. needed SysRq to reboot the thing..
    > kernel info follows:
    > Jul 24 13:08:23 doug kernel: Badness in pci_find_subsys at
    > drivers/pci/search.c:132
    > Jul 24 13:08:23 doug kernel: Call Trace:
    > Jul 24 13:08:23 doug kernel: [<c02064a1>] pci_find_subsys+0x111/0x120
    > Jul 24 13:08:23 doug kernel: [<c02064df>] pci_find_device+0x2f/0x40
    > Jul 24 13:08:23 doug kernel: [<c0206368>] pci_find_slot+0x28/0x50
    > Jul 24 13:08:23 doug kernel: [<f8a2ada4>] os_pci_init_handle+0x3a/0x67

    The 'badness in pci_find_subsys' may not be related to your hang.

    The NVidia msgs are basically caused by the fact that pci_find_slot() is
    getting called in an interrupt, so we trigger the WARN_ON in pci_find_subsys().
    The worry here is that we may be walking the PCI list on the interrupt side
    while something else is hotplugging a new device into existence, causing it to
    walk off the end of a inconsistent list. Unless you actually crapped out right
    at 13:08:23, it's probably unrelated.

    (I was getting the same NVidia traceback on a regular basis (3-4 at every start
    of the X server, and 1 at X server shutdown) under 2.5.72-mm3, they stopped
    when I went to 2.5.73-mm1. If you're still seeing them in 2.6.0-test1, I would
    suspect something different in the -mm series is fixing them for me - first place
    to look is what got added between 72-mm3 and 73-mm1.

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