Messages in this thread | | | Date | Wed, 13 Dec 2006 15:00:03 -0800 (PST) | From | dean gaudet <> | Subject | Re: [stable] [PATCH 46/61] fix Intel RNG detection |
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On Wed, 13 Dec 2006, Chris Wright wrote:
> * dean gaudet (dean@arctic.org) wrote: > > just for the public record (i already communicated with Jan in private > > mail on this one)... i have a box which hangs hard starting at 2.6.18.2 > > and 2.6.19 -- hangs hard during the intel hw rng tests (no sysrq > > response). and the hang occurs prior to the printk so it took some > > digging to figure out which module was taking out the system. > > > > Jan's patch gets the box past the hang... it seems like this should be in > > at least the next 2.6.19.x stable (and if there's going to be another > > 2.6.18.x stable then it should be included there as well). > > Thanks for the data point. I wonder if you get SMI and never come back. > Do you boot with no_fwh_detect=1 or -1?
with the patch it boots perfectly without any command-line args.
without the patch it crashes after the "4" and before the "5" in this hacked up segment of the code:
if (!(fwh_dec_en1_val & FWH_F8_EN_MASK)) pci_write_config_byte(dev, fwh_dec_en1_off, fwh_dec_en1_val | FWH_F8_EN_MASK); if (!(bios_cntl_val & (BIOS_CNTL_LOCK_ENABLE_MASK|BIOS_CNTL_WRITE_ENABLE_MASK))) pci_write_config_byte(dev, bios_cntl_off, bios_cntl_val | BIOS_CNTL_WRITE_ENABLE_MASK);
printk(KERN_INFO "intel-rng: 4\n"); writeb(INTEL_FWH_RESET_CMD, mem); printk(KERN_INFO "intel-rng: 5\n");
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