[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
@iLogin That does revert the troublesome commit and mainline at that commit boots for me. ** Changed in: linux (Ubuntu) Status: Triaged => Fix Committed ** Package changed: linux (Ubuntu) => linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
revert a broken PAT commit that broke a number of systems https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2a025defd804be938f8acffe62e4801a3ed1601 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug. Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org. Once this bug is reported upstream, please add the tag: 'kernel-bug- reported-upstream'. [0] https://wiki.ubuntu.com/Bugs/Upstream/kernel ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
** Description changed: I have an HP Spectre x360 Convertible laptop with an Intel 5500U SoC. In short, I am completely unable to boot kernel 4.12-rc3, even though I could boot from 4.12-rc2 perfectly fine. The loading screen does not appear at all, instead GRUB remains stuck on "Loading initial ramdisk ...". Please help. I don't know how to identify what is wrong because I am completely unable to boot the OS to begin with. Needless to say, this is a major problem. Here is my hardware: H/W path Device Class Description - system HP Spectre x360 Convertible (N5R94UA) + system HP Spectre x360 Convertible (N5R94UA) /0bus802D /0/0 memory 64KiB BIOS /0/10 memory 32KiB L1 cache /0/11 memory 32KiB L1 cache /0/12 memory 256KiB L2 cache /0/13 memory 4MiB L3 cache /0/14 processor Intel(R) Core(TM) i7-5500U CPU @ 2.40GH /0/16 memory 8GiB System Memory - /0/16/0 memory 4GiB Row of chips Synchronous 1600 MHz - /0/16/1 memory 4GiB Row of chips Synchronous 1600 MHz + /0/16/0 memory 4GiB Row of chips Synchronous 1600 MHz + /0/16/1 memory 4GiB Row of chips Synchronous 1600 MHz /0/100bridge Broadwell-U Host Bridge -OPI /0/100/2 displayBroadwell-U Integrated Graphics /0/100/3 multimedia Broadwell-U Audio Controller /0/100/14 busWildcat Point-LP USB xHCI Controller /0/100/14/0usb1 busxHCI Host Controller /0/100/14/0/1 input USB Receiver /0/100/14/0/3 multimedia HP Truevision Full HD /0/100/14/0/4 input Touchscreen /0/100/14/0/5 input ITE Device(8350) /0/100/14/0/7 communication Bluetooth wireless interface /0/100/14/1usb2 busxHCI Host Controller /0/100/16 communication Wildcat Point-LP MEI Controller #1 - /0/100/1c bridge Wildcat Point-LP PCI Express Root Port + /0/100/1c bridge Wildcat Point-LP PCI Express Root Port /0/100/1c/0 genericRTS5227 PCI Express Card Reader - /0/100/1c.2 bridge Wildcat Point-LP PCI Express Root Port + /0/100/1c.2 bridge Wildcat Point-LP PCI Express Root Port /0/100/1c.2/0 wlo1 networkWireless 7265 /0/100/1f bridge Wildcat Point-LP LPC Controller - /0/100/1f.2 storageWildcat Point-LP SATA Controller [AHCI + /0/100/1f.2 storageWildcat Point-LP SATA Controller [AHCI /0/100/1f.3 busWildcat Point-LP SMBus Controller - /0/1 scsi0 storage + /0/1 scsi0 storage /0/1/0.0.0 /dev/sda disk 512GB SAMSUNG MZNTE512 /0/1/0.0.0/1 /dev/sda1 volume 449MiB Windows NTFS volume /0/1/0.0.0/2 /dev/sda2 volume 99MiB Windows FAT volume /0/1/0.0.0/3 /dev/sda3 volume 15MiB reserved partition /0/1/0.0.0/4 /dev/sda4 volume 15EiB Windows FAT volume /0/1/0.0.0/5 /dev/sda5 volume 838MiB Windows NTFS volume /0/1/0.0.0/6 /dev/sda6 volume 146GiB Windows NTFS volume /0/1/0.0.0/7 /dev/sda7 volume 89GiB EXT4 volume /0/1/0.0.0/8 /dev/sda8 volume 8099MiB Linux swap volume /1power PK03056XL -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
I am unable to run apport-collect running 4.12-rc3, because I cannot actually boot my computer (an immediate kernel panic occurs, as evidenced by adding the output from earlyprintk=efi), so I'm marking this bug as confirmed. Please also see relevant discussion about this issue on the Linux Kernel mailing list: http://lkml.iu.edu/hypermail/linux/kernel/1705.3/04549.html ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1694561] Re: kernel panic attempting to boot kernel 4.12-rc3
It appears a kernel panic is happening immediately while attempting to boot 4.12-rc3, it doesn't happen on 4.12-rc2. Adding earlyprintk=efi to the grub command line options, I get the following message (which explains why the bootloader stops at 'loading initial ramdisk...'): This was meticulously copied from a photo of a GRUB screen, this change is undoubtedly the culprit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/arch/x86/mm/pat.c?id=v4.12-rc3=v4.12-rc2 (direct commit at) https://github.com/torvalds/linux/commit/cbed27cdf0e3f7ea3b2259e86b9e34df02be3fe4 [0.00] Kernel panic - not syncing: x86/PAT: PAT enabled, but not supported by secondary CPU [0.00] CPU: 0 PID: 0 Comm: swapper Not tainted 4.12.0-041200rc3-generic #201705282131 [0.00] Hardware name: HP HP Spectre x360 Convertible /802D, BIOS F.45 04/21/2017 [0.00] Call Trace: [0.00] dump_stack+0x63/0x8d [0.00] panic+0xe4/0x22d [0.00] pat_init+0x13d/0x140 [0.00] generic_set_all+0x1ab/0x300 [0.00] mtrr_bp_init+0x1e5/0x227 [0.00] setup_arch+0x53a/0xca8 [0.00] ? printk+0x52/0x6e [0.00] ? early_idt_handler_array+0x120/0x120 [0.00] start_kernel+0xb7/0x46c [0.00] ? early_idt_handler_array+0x120/0x120 [0.00] x86_64_start_reservations+0x29/0x2b [0.00] x86_64_start_kernel+0x154/0x177 [0.00] secondary_startup_64+0x9f/0x9f [0.00] ---[ end Kernel panic - not syncing: x86/PAT: PAT enabled, but not supported by secondary CPU [0.00] This change causes a kernel panic on my Intel 5500U processor, I literally cannot boot my computer. This commit results in a serious regression for multicore Intel CPUs, 4.12-rc3 and drm-tip result in an immediate kernel panic attempting to boot. This is unacceptable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694561 Title: kernel panic attempting to boot kernel 4.12-rc3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694561/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
