On 2015/3/3 6:03, Rafael J. Wysocki wrote: > On Monday, March 02, 2015 10:07:20 PM Hudd wrote: >> On Sun, 2015-03-01 at 01:00 +0100, Rafael J. Wysocki wrote: >>> On Saturday, February 28, 2015 10:35:21 AM Prakash Punnoor wrote: >>>> This is a multi-part message in MIME format. >>>> --------------080704070901080904040008 >>>> Content-Type: text/plain; charset=utf-8 >>>> Content-Transfer-Encoding: 7bit >>>> >>>> Hallo, >>>> >>>> my system won't boot with current GIT kernel (see attached screenshot). >>>> The system seems somewhat frozen (cannot ssh into it), but magic sysrq >>>> still works. I bisected the problem to commit >>>> 593669c2ac0fe18baee04a3cd5539a148aa48574. >>> >>> Thanks for reporting, we're working on it. >> >> Hello folks, >> >> I've tried out 4.0-rc1, and it does not boot on my system. It just >> freezes without any messages (The only message I see is “Loading initial >> ramdisk” from GRUB). I bisected the problem down to the same commit as >> in this report. >> >> # first bad commit: [593669c2ac0fe18baee04a3cd5539a148aa48574] >> x86/PCI/ACPI: Use common ACPI resource interfaces to simplify implementation > > So at the moment I'm inclined to revert it. Clearly, it wasn't thought > through enough, so my suggestion would be to revert it for 4.0 and try again > in the next cycle and be more careful this time. > > Gerry, would it cause problems to happen if I reverted this one? Hi Rafael, I will send out a patch today for this issue. On Thomas Voegtle's system, the issue is caused by that BIOS report incorrect length for ACPI address space descriptor. For example, [ 0.761553] acpi: address space [80000000-d0716ffe] len 50717000 [ 0.767572] ACPI: invalid or unassigned resource mem [0000000080000000 - 00000000d0716ffe] length [0000000050717000] BIOS should report length of 0x50716fff instead of 0x50717000. So seems we need to relax the length check code to workaround such bios issues. Will send out a patch for it soon. Thanks! Gerry > > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
