I also ran into this problem with Xubuntu 16.04 LTS. I'm running an Intel Pentium M 735, Dothan, (2MB L2 Cache, 1.70 GHz, 400 MHz FSB) (CPUID: 6.D.6 (hex) or 06D6h or 6.13.6 (dec)).
When I lookup the specification on the Intel site, then it says: Physical Address Extensions (PAE) 32-bit is available. (source: http://ark.intel.com/products/27588/Intel-Pentium-M-Processor-735-2M-Cache-1_70A-GHz-400-MHz-FSB#@specifications ) Are there any adverse effects known about the boot parameter "forcepae"? What I need to know is if the compiled stock kernel / compiler implemented work-arounds for the W25 and W40 errata* to the Dothan (stepping B1) family of processors. If that is so, then the PAE flag can be set / forced without problems. * Intel Celeron M Specification Update errata W25: Upper Four PAT Entries Not Usable with Mode B or Mode C Paging W40: INIT Does Not Clear Global Entries in the TLB Problem: INIT may not flush a TLB entry when: 1. The processor is in protected mode with paging enabled and the page global enable flag is set (PGEbit of CR4 register) 2. G bit for the page table entry is set 3. TLB entry is present in TLB when INIT occurs Implication: Software may encounter unexpected page fault or incorrect address translation due to a TLB entry erroneously left in TLB after INIT. Workaround: Write to CR3, CR4 (settingbits PSE, PGE or PAE) or CR0 (setting bits PG or PE) registers before writing to memory early in BIOS code to clear all the global entries from TLB. (source: http://download.intel.com/support/processors/mobile/celeron/sb/30030336.pdf ) See also: http://ubuntuforums.org/showthread.php?t=2326769&p=13499191#post13499191 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1307105 Title: Kernel install fails due PAE checks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307105/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
