On 05/18/2014 03:42 PM, Borislav Petkov wrote: > On Sat, May 17, 2014 at 05:25:47PM +0200, Francis Moreau wrote: >> [ +0.018677] general protection fault: 0000 [#1] PREEMPT SMP >> [ +0.000068] Modules linked in: usb_storage tun raid1 md_mod loop fuse >> joydev coretemp hwmon arc4 intel_rapl x86_pkg_temp_thermal >> intel_powerclamp kvm_intel nls_iso8859_1 nls_cp437 iTCO_wdt kvm vfat fat >> iTCO_vendor_support iwldvm uvcvideo led_class crct10dif_pclmul >> crc32_pclmul crc32c_intel ghash_clmulni_intel mac80211 videobuf2_vmalloc >> videobuf2_memops videobuf2_core aesni_intel videodev aes_x86_64 >> snd_hda_codec_hdmi lrw gf128mul mousedev glue_helper btusb >> snd_hda_codec_via ablk_helper media cryptd iwlwifi snd_hda_codec_generic >> bluetooth psmouse microcode i2c_i801 serio_raw cfg80211 6lowpan_iphc >> rtsx_pci_ms r8169 memstick rfkill lpc_ich mii snd_hda_intel >> snd_hda_codec thermal snd_hwdep wmi snd_pcm tpm_infineon snd_timer >> tpm_tis mei_me snd tpm mei shpchp evdev soundcore processor battery >> mac_hid ac >> [ +0.000803] ext4 crc16 mbcache jbd2 hid_generic usbhid hid bcache >> sd_mod sr_mod crc_t10dif cdrom crct10dif_common rtsx_pci_sdmmc mmc_core >> atkbd libps2 ahci libahci ehci_pci libata xhci_hcd ehci_hcd scsi_mod >> rtsx_pci usbcore usb_common i8042 serio i915 video button intel_gtt >> i2c_algo_bit drm_kms_helper drm i2c_core >> [ +0.000328] CPU: 0 PID: 30835 Comm: systemd-udevd Not tainted >> 3.14.2-1-ARCH #1 >> [ +0.000064] Hardware name: CLEVO CO. W55xEU >> /W55xEU , BIOS 4.6.5 >> 03/05/2013 >> [ +0.000102] task: ffff880405ee6bf0 ti: ffff880400f4a000 task.ti: >> ffff880400f4a000 >> [ +0.000060] RIP: 0010:[<ffffffff810655af>] [<ffffffff810655af>] >> efi_call5+0x6f/0xf0 >> [ +0.000071] RSP: 0018:ffff880400f4bdb0 EFLAGS: 00010002 >> [ +0.000045] RAX: 0000000080050033 RBX: ffff8804040e3000 RCX: >> ffff8804040e3000 >> [ +0.000055] RDX: ffff8804040e3400 RSI: ffff8804040e3000 RDI: >> bff7fffff7afffff > > So you get a #GP while executing call *rdi and %rdi is supposed to > contain ->get_variable. But instead it contains some very funky shit: > > 0xbff7fffff7afffff > > Who made it contain that nuisance of a pointer which thinks it is > ->get_variable, huh? If only I could get my hands on that guy! :-P > > Ok, seriously, how reproducible is this? I don't really know how to reproduce this, I only can say that it usually happens while partitioning the loop device or perhaps when the kernel reads the partition table afterwards. > Can you reproduce with the > latest upstream kernel too, i.e. 3.15-rc5+? I don't know, I can't really afford to configure/compile/test this new kernel, sorry. Thanks -- 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
