(Adding linux-efi) On Fri, 05 Sep, at 08:51:31AM, Francis Moreau wrote: > [ +0.000045] RIP: 0010:[<0000000000000000>] [< (null)>] (null) > [ +0.000046] RSP: 0018:ffff8800b4001da8 EFLAGS: 00010002 > [ +0.000032] RAX: 0000000080050033 RBX: ffff880406288000 RCX: ffff880406288000 > [ +0.000041] RDX: ffff880406288400 RSI: ffff880406288000 RDI: 0000000000000000 > [ +0.000042] RBP: ffff8800b4001e80 R08: 0000000000000000 R09: ffff8800b4001ec0 > [ +0.000042] R10: 0000000000000000 R11: 0000000000000246 R12: ffff880406288400 > [ +0.000042] R13: 0000000000000000 R14: ffff8800b4001ec0 R15: 000000000009b000 > [ +0.000042] FS: 00007f7720a567c0(0000) GS:ffff88041e2c0000(0000) knlGS:0000000000000000 > [ +0.000048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ +0.000034] CR2: 0000000000000000 CR3: 000000000009b000 CR4: 00000000001427e0 > [ +0.000042] Stack: > [ +0.000014] ffffffff81063281 ffffffff811bd95c 0000000000000246 ffff8800da9e6628 > [ +0.000052] 8000000300000000 0000000000000000 0000000000000000 ffff8800b4001e50 > [ +0.000051] 0000000080050033 00007f7722abbc50 00007f7722abbb50 00ffffffffffffff > [ +0.000052] Call Trace: > [ +0.000022] [<ffffffff81063281>] ? efi_call5+0x71/0xf0 > [ +0.000035] [<ffffffff811bd95c>] ? getname_flags+0x2c/0x130 > [ +0.000037] [<ffffffff81062649>] ? virt_efi_get_variable+0x49/0x60 > [ +0.000051] [<ffffffff813d0181>] efivar_entry_size+0x41/0x80 > [ +0.000030] [<ffffffff8123aec9>] efivarfs_file_read+0x49/0x100 > [ +0.000046] [<ffffffff811b2077>] vfs_read+0x97/0x160 > [ +0.000041] [<ffffffff811b2bc9>] SyS_read+0x59/0xd0 > [ +0.000041] [<ffffffff81509e29>] system_call_fastpath+0x16/0x1b This looks like efi.systab->runtime->get_variable is NULL. Could you send a copy of the dmesg buffer? It might contain some info to explain this issue. Also, is this a regression? If so it would be excellent if you could pinpoint the commit that causes the problem, using git bisect. -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
