Messages in this thread | | | From | devzero@web ... | Subject | Re: dmesg spam: "PnPBIOS: pnp_dock_thread: unexpected status 0x5 flooding" | Date | Wed, 12 Nov 2014 19:15:37 +0100 |
| |
> Change the default to > > default: > pnpbios_print_status("pnp_dock..... etc) > printk(KERN_ERR "PnPBIOS: Disabling dock monitoring\n"); > complete_and_exit(&unload_sem, 0); > > that should produce you one error message, a warning that dock monitoring > is being disabled and then it should stfu. > > If you can let us know if that does the trick then I can push it upstream.
works perfectly - thanks very much !
[ 9.712027] Switching to clocksource tsc [ 9.903305] udevd[42]: starting version 175 [ 10.637309] natsemi dp8381x driver, version 2.1, Sept 11, 2006 [ 10.637345] originally by Donald Becker <becker@scyld.com> [ 10.637371] 2.4.x kernel port by Jeff Garzik, Tjeerd Mulder [ 10.700287] natsemi 0000:00:0f.0: setting latency timer to 64 [ 10.880548] natsemi eth0: NatSemi DP8381[56] at 0x8010000 (0000:00:0f.0), 00:00:00:00:00:00, IRQ 10, port TP. [ 11.025143] PnPBIOS: pnp_dock_thread: unexpected status 0x5 >[ 11.026800] PnPBIOS: Disabling dock monitoring [ 11.518269] SCSI subsystem initialized [ 11.550857] usbcore: registered new interface driver usbfs
> I've not seen other reports of pnp_dock_thread errors with a real dock. > The only reports at all are a couple of old ones in google that seem to > be similar and a Debian bug (294652) which appears to be your bug so I'd
indeed - seems a rather weird/rare/old one.
glad that you fixed it, though. thanks again!
roland
> Gesendet: Montag, 10. November 2014 um 14:54 Uhr > Von: "One Thousand Gnomes" <gnomes@lxorguk.ukuu.org.uk> > An: devzero@web.de > Cc: linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com > Betreff: Re: dmesg spam: "PnPBIOS: pnp_dock_thread: unexpected status 0x5 flooding" > > On Fri, 7 Nov 2014 00:54:31 +0100 > devzero@web.de wrote: > > > Hi, > > > > on an ancient GX1 Geode embedded board (Evo T20/Wyse wt3235le Thin Client, which are cheap (<$10) and low power x86 embeded platform) , dmesg is getting constantly spammed with "PnPBIOS: pnp_dock_thread: unexpected status 0x5" during and after boot. > > > > Any ideas what this means and how to stop that? > > > > It seems it comes from drivers/pnp/pnpbios/bioscalls.c -> pnpbios_print_status() > > > > Tried adding pnpbios=off, but with that the system does not boot anymore. > > > > Being curious, why a non-existing docking-station is being "polled at regular intervals" (i.e. every 2 seconds - see drivers/pnp/pnpbios/core.c ) > > We poll for a dock, and if the BIOS reports that the function is not > supported we then exit the thread. > > > > > >From http://books.google.de/books?id=ibLa4I5EnC4C&pg=PA231&lpg=PA231&dq=pnp+docking+bios&source=bl&ots=ekCFm34U_B&sig=9Z9L55IAL7_3NtuM10jT3serncM&hl=de&sa=X&ei=mAZcVILnJsviO-r5gNgI&ved=0CCsQ6AEwAQ#v=onepage&q=pnp%20docking%20bios&f=false i read: "Function 05h - Get Docking Status Information at page 251" > > The spec is available at: > > http://download.intel.com/support/motherboards/desktop/sb/pnpbiosspecificationv10a.pdf > > > it seems this is being the result of a "docking event" ? Does this mean, my system is erroneusly generating such docking events, even if there is no docking station at all? > > Your BIOS appears to be making strange replies. Any error ought to have > the top bit set, so its reporting a nonsense value for some reason. > > I've not seen other reports of pnp_dock_thread errors with a real dock. > The only reports at all are a couple of old ones in google that seem to > be similar and a Debian bug (294652) which appears to be your bug so I'd > suggest testing the following > > > Change the default to > > default: > pnpbios_print_status("pnp_dock..... etc) > printk(KERN_ERR "PnPBIOS: Disabling dock monitoring\n"); > complete_and_exit(&unload_sem, 0); > > that should produce you one error message, a warning that dock monitoring > is being disabled and then it should stfu. > > If you can let us know if that does the trick then I can push it upstream. > > Alan >
| |