adding [EMAIL PROTECTED] on cc for 8004dd965b13b01a96def054d420f6df7ff22d53
On Mon, Aug 11, 2008 at 11:17:34PM -0600, dann frazier wrote: > On Fri, Aug 08, 2008 at 08:51:33PM +0200, Peter Palfrader wrote: > > Package: linux-image-2.6.26-1-amd64 > > Version: 2.6.26-1 > > Severity: important > > > > Hi, > > > > it seems that 2.6.26 (whether the debian package or the kernel.org > > kernel) locks up after a while on Debian's DL385G1 systems. > > > > After a while, sooner with more disk IO/filesystem load, the system > > hangs: it continues to do stuff but everything involving disk hangs > > forever. > > > > The systems work just fine on a 2.6.25.10 kernel. > > > > The servers have Opterons like this: > > cpu family : 15 > > model : 33 > > > > so http://www.uwsg.iu.edu/hypermail/linux/kernel/0808.0/0882.html might > > explain it. > > hey Peter, > This is readily reproducible - a simple kernel compile was all it > took. git bisecting suggests that this issue was introduced by [1] > and unmasked by [2] during 2.6.26 devlopment. It was later fixed > during 2.6.27 development by [3]. > > Can you confirm that the attached backport of [3] fixes the problem > for you? > > [1] 35605a1027ac630f85a1b95684f7e86b82498cd6 > [2] 8d539108560ec121d59eee05160236488266221c > [3] 8004dd965b13b01a96def054d420f6df7ff22d53 > > > -- > dann frazier > > commit 8004dd965b13b01a96def054d420f6df7ff22d53 > Author: Yinghai Lu <[EMAIL PROTECTED]> > Date: Mon May 12 17:40:39 2008 -0700 > > x86: amd opteron TOM2 mask val fix > > there is a typo in the mask value, need to remove that extra 0, > to avoid 4bit clearing. > > Signed-off-by: Yinghal Lu <[EMAIL PROTECTED]> > Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]> > > Backported to Debian's 2.6.26 by dann frazier <[EMAIL PROTECTED]> > > diff -urpN linux-source-2.6.26.orig/arch/x86/kernel/cpu/mtrr/generic.c > linux-source-2.6.26/arch/x86/kernel/cpu/mtrr/generic.c > --- linux-source-2.6.26.orig/arch/x86/kernel/cpu/mtrr/generic.c > 2008-08-11 22:55:59.000000000 -0600 > +++ linux-source-2.6.26/arch/x86/kernel/cpu/mtrr/generic.c 2008-08-11 > 22:57:13.000000000 -0600 > @@ -219,7 +219,7 @@ void __init get_mtrr_state(void) > tom2 = hi; > tom2 <<= 32; > tom2 |= lo; > - tom2 &= 0xffffff8000000ULL; > + tom2 &= 0xffffff800000ULL; > } > if (mtrr_show) { > int high_width; > diff -urpN linux-source-2.6.26.orig/arch/x86/pci/k8-bus_64.c > linux-source-2.6.26/arch/x86/pci/k8-bus_64.c > --- linux-source-2.6.26.orig/arch/x86/pci/k8-bus_64.c 2008-08-11 > 22:55:59.000000000 -0600 > +++ linux-source-2.6.26/arch/x86/pci/k8-bus_64.c 2008-08-11 > 22:57:13.000000000 -0600 > @@ -384,7 +384,7 @@ static int __init early_fill_mp_bus_info > /* need to take out [0, TOM) for RAM*/ > address = MSR_K8_TOP_MEM1; > rdmsrl(address, val); > - end = (val & 0xffffff8000000ULL); > + end = (val & 0xffffff800000ULL); > printk(KERN_INFO "TOM: %016lx aka %ldM\n", end, end>>20); > if (end < (1ULL<<32)) > update_range(range, 0, end - 1); > @@ -478,7 +478,7 @@ static int __init early_fill_mp_bus_info > /* TOP_MEM2 */ > address = MSR_K8_TOP_MEM2; > rdmsrl(address, val); > - end = (val & 0xffffff8000000ULL); > + end = (val & 0xffffff800000ULL); > printk(KERN_INFO "TOM2: %016lx aka %ldM\n", end, end>>20); > update_range(range, 1ULL<<32, end - 1); > } -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
