Esel, Could you provide me the stack trace you are facing (without intel_idle.max_cstate=0 in bootparam). Then you should test enabling intel_idle.max_cstate=0 into bootparams and see if the problems happen. If you problem is related to intel_idle module, I'd love to use your case as a "testcase" to fix this.
Do you know how to enable linux-crashdump ? Do you think you could enabled it and provide me the coredump when you get such error ? And yes! For your case (Proliant < Gen8) the "workaround" cmdline should be: "nox2apic intermap=off intel_idle.max_cstate=0" Tks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1398497 Title: HP Proliant Serverrs - DL360 and DL380 Gen8 - Precise Kernel Panic - General Protection Fault and X2APIC/XAPIC boot parameters Status in linux package in Ubuntu: In Progress Status in linux source package in Precise: In Progress Bug description: It was brought to my attention the following situation: """ We massively upgraded our Ubuntu 12.04 servers (most of them are HP DL360p Gen8 or DL380 Gen8) to 3.2.0-67 kernel And in the last 2-3 days we already had to reboot 5 of them because they completely hang Some of them had the following messages under syslog : kernel: [384707.675479] general protection fault: 0000 [#5666] SMP others had : kernel: [950725.612724] BUG: unable to handle kernel paging request All of them have this also : your BIOS is broken and requested that x2apic be disabled """ Comments bellow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398497/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp