2412 2012-05-04 00:22:44 +0000 n450: Support EFI boot 2012-10-10 11:25:28 +0000 1 1 7 Build System, Metadata & Runtime BSPs bsps-configuration 1.2 x86 Multiple VERIFIED WONTFIX Low minor 1.3 1 dvhart dvhart corneliux.stoicescu yp.bsp.watcher yp.watcher --- --- --- oldest_to_newest 21084 0 dvhart 2012-05-04 00:22:44 +0000 The n450 has a UEFI capable firmware. Booting fails using EFI currently. 21631 1 dvhart 2012-05-25 22:56:13 +0000 This appears to be a possible firmware issue. Either way, it is a larger issue than we'll be able to address for the 1.2 release. Bumping to 1.3. 23174 2 dvhart 2012-07-17 20:18:08 +0000 Moving to 1.3. I will discuss with the board/firmware guys, but it is possible this will not be fixable without a firmware update. 23355 3 dvhart 2012-07-20 23:49:14 +0000 The 3.4 kernel panics as follows even without CONFIG_EFI_VARS enabled. BUG: unable to handle kernel paging request at 3edb4494 IP: [<f95486fd>] 0xf95486fc *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: Pid: 1, comm: swapper/0 Tainted: G W 3.4.4-yocto-standard #1 Intel Corpo. EIP: 0060:[<f95486fd>] EFLAGS: 00010282 CPU: 1 EIP is at 0xf95486fd EAX: f6897f18 EBX: f80bbf10 ECX: f6897f1c EDX: f6187800 ESI: f6187800 EDI: c1b61264 EBP: f6897eec ESP: f6897ee8 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 CR0: 8005003b CR2: 3edb4494 CR3: 01ae3000 CR4: 000007d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process swapper/0 (pid: 1, ti=f6896000 task=f6898000 task.ti=f6896000) Stack: f6897f1c f6897f04 c102ac53 f6897f18 f6187800 f6897f1c c1b61280 f6897f38 c155ed4f f61bad40 c198473c f61bad40 00000400 f61bad40 f68536c0 c197f2e5 c198473c 00000000 c1a7a1e6 00000000 f6897f50 c1a7a279 c1967a2c c1984737 Call Trace: [<c102ac53>] virt_efi_get_next_variable+0x23/0x30 [<c155ed4f>] register_efivars+0x7f/0x300 [<c1a7a1e6>] ? dmi_scan_machine+0xc5/0xc5 [<c1a7a279>] efivars_init+0x93/0xda [<c10011f2>] do_one_initcall+0x112/0x160 [<c1a53823>] kernel_init+0x114/0x1db [<c1a531f0>] ? do_early_param+0x7a/0x7a [<c1058f25>] ? schedule_tail+0x25/0xa0 [<c1721ec6>] ? ret_from_fork+0x6/0x1c [<c1a5370f>] ? start_kernel+0x303/0x303 [<c1a5370f>] ? start_kernel+0x303/0x303 [<c1722476>] kernel_thread_helper+0x6/0x10 25731 4 dvhart 2012-09-25 21:48:20 +0000 The n450 BIOS currently works and I have received no reports of anyone besides me even attempting to boot with EFI. I'm closing as WONTFIX. If this is an issue for you, please reopen. 26473 5 corneliux.stoicescu 2012-10-10 11:25:28 +0000 Marking as verified as per last comment.