On Fri, 29 Jul 2005 11:35:09 +0300 (EEST), Tero Roponen wrote: >On Fri, 29 Jul 2005, Andrew Morton wrote: > >> Tero Roponen <[EMAIL PROTECTED]> wrote: >> > >> > Hi, >> > >> > I just tested 2.6.13-rc4. At boot it prints: >> > "dma_timer_expiry: dma status == 0x61" many times. >> > That's the same problem as in 2.6.13-rc2. >> > >> > If I apply the following patch, everything seems to be fine. >> > I'm not sure if this is the right thing to do, but it works for me. >> > >> > - >> > Tero Roponen >> > >> > >> > --- 2.6.13-rc2/drivers/pci/setup-bus.c Thu Jul 7 01:32:43 2005 >> > +++ linux/drivers/pci/setup-bus.c Fri Jul 8 10:25:20 2005 >> > @@ -40,8 +40,8 @@ >> > * FIXME: IO should be max 256 bytes. However, since we may >> > * have a P2P bridge below a cardbus bridge, we need 4K. >> > */ >> > -#define CARDBUS_IO_SIZE (4096) >> > -#define CARDBUS_MEM_SIZE (32*1024*1024) >> > +#define CARDBUS_IO_SIZE (256) >> > +#define CARDBUS_MEM_SIZE (32*1024*1024) >> > >> >> hm, how did you come up with that fix? Those numbers have been like that >> since forever. >> >> What's the latest 2.6 kernel which worked OK? >> >> Would it be possible for you to generate the `dmesg -s 100000' output for >> both good and bad kernels, see what the differences are? >> >> Thanks. > >Hi, > >that patch was from Ivan Kokshaysky (http://lkml.org/lkml/2005/7/8/25) > >My original report is here: http://lkml.org/lkml/2005/7/6/174
The PCI changes in 2.6.13-rc2 caused a number of machines to hang at boot, including my Athlon64 laptop. It was found that reducing CARDBUS_IO_SIZE to 256 eliminated the hangs. The LKML archives have the details. /Mikael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
