Messages in this thread | | | Subject | Re: 2.6.16-rc2-mm1 -- BUG: warning at drivers/ieee1394/ohci1394.c:235/get_phy_reg() | From | Lee Revell <> | Date | Fri, 10 Feb 2006 21:30:39 -0500 |
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On Sat, 2006-02-11 at 01:31 +0100, Stefan Richter wrote: > Andrew Morton wrote: > > Miles Lane <miles.lane@gmail.com> wrote: > >>BUG: warning at drivers/ieee1394/ohci1394.c:235/get_phy_reg() > > > > That's a -mm-only warning telling you that get_phy_reg() is doing a > > one-millisecond-or-more busywait while local interrupts are disabled. > > Same with set_phy_reg, ohci_soft_reset, ohci_hw_csr_reg. At least the > callers of ohci_hw_csr_reg (in particular, csr_highlevel.host_reset, > furthermore csr_highlevel.add_host) could fairly easily be converted to > a workqueue job or perhaps moved to the nodemgr thread. I have not > checked the other offending functions yet.
In fact I'm pretty sure we have seen reports on the linux-audio-user list of apps reporting underruns when a 1394 drive is accessed.
Lee
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