* Re: kernel 3.14.2 oops: seems related to EFI [not found] ` <53777F7B.8060407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-05-18 13:42 ` Borislav Petkov [not found] ` <20140518134206.GA8040-fF5Pk5pvG8Y@public.gmane.org> 0 siblings, 1 reply; 6+ messages in thread From: Borislav Petkov @ 2014-05-18 13:42 UTC (permalink / raw) To: Francis Moreau; +Cc: LKML, Matt Fleming, linux-efi 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? Can you reproduce with the latest upstream kernel too, i.e. 3.15-rc5+? Thanks. (leaving in the rest for reference). > [ +0.000056] RBP: ffff880400f4be80 R08: 0000000000000000 R09: > ffff880400f4bec0 > [ +0.000055] R10: 0000000000000000 R11: 0000000000000246 R12: > ffff8804040e3400 > [ +0.000056] R13: 0000000000000000 R14: ffff880400f4bec0 R15: > 000000000009b000 > [ +0.002960] FS: 00007fb6167c97c0(0000) GS:ffff88041e200000(0000) > knlGS:0000000000000000 > [ +0.002958] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ +0.003177] CR2: 00007fb61581f4c0 CR3: 000000000009b000 CR4: > 00000000001427e0 > [ +0.003258] Stack: > [ +0.003257] 0000000000000201 8000000000000065 ffff880400000000 > ffff880100000000 > [ +0.003328] 0000000000000000 0000000000000000 ffff880400f4be50 > 0000000080050033 > [ +0.003354] 0000000000ff0000 0000000000000000 00ffffffffffffff > 0000000000000000 > [ +0.003368] Call Trace: > [ +0.003389] [<ffffffff81064901>] ? virt_efi_get_variable+0x51/0x80 > [ +0.003353] [<ffffffff813dbb71>] efivar_entry_size+0x41/0x80 > [ +0.003315] [<ffffffff81245659>] efivarfs_file_read+0x49/0x100 > [ +0.003326] [<ffffffff811ba797>] vfs_read+0x97/0x160 > [ +0.003305] [<ffffffff811bb2e9>] SyS_read+0x59/0xd0 > [ +0.003263] [<ffffffff81517629>] system_call_fastpath+0x16/0x1b > [ +0.003239] Code: 89 c8 48 89 f1 80 3d e8 16 7d 00 00 74 1d 4c 89 3d > c7 16 7d 00 41 0f 20 df 4c 89 3d c4 16 7d 00 4c 8b 3d c5 16 7d 00 41 0f > 22 df <ff> d7 80 3d c0 16 7d 00 00 74 41 4c 8b 3d a7 16 7d 00 41 0f 22 > [ +0.003648] RIP [<ffffffff810655af>] efi_call5+0x6f/0xf0 > [ +0.003511] RSP <ffff880400f4bdb0> > [ +0.024630] ---[ end trace 3670998c9a49abb7 ]--- > [ +0.000005] note: systemd-udevd[30835] exited with preempt_count 2 > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20140518134206.GA8040-fF5Pk5pvG8Y@public.gmane.org>]
* Re: kernel 3.14.2 oops: seems related to EFI [not found] ` <20140518134206.GA8040-fF5Pk5pvG8Y@public.gmane.org> @ 2014-05-19 7:09 ` Francis Moreau [not found] ` <5379AE46.3000407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 0 siblings, 1 reply; 6+ messages in thread From: Francis Moreau @ 2014-05-19 7:09 UTC (permalink / raw) To: Borislav Petkov; +Cc: LKML, Matt Fleming, linux-efi 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 ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <5379AE46.3000407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* Re: kernel 3.14.2 oops: seems related to EFI [not found] ` <5379AE46.3000407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-05-19 11:27 ` Matt Fleming 2014-05-20 11:54 ` Matt Fleming 1 sibling, 0 replies; 6+ messages in thread From: Matt Fleming @ 2014-05-19 11:27 UTC (permalink / raw) To: Francis Moreau; +Cc: Borislav Petkov, LKML, linux-efi On Mon, 19 May, at 09:09:58AM, Francis Moreau wrote: > 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. It looks like it's oopsing as a result of systemd-udevd trying to read a variable via the efivarfs mount, Call Trace: [<ffffffff81064901>] ? virt_efi_get_variable+0x51/0x80 [<ffffffff813dbb71>] efivar_entry_size+0x41/0x80 [<ffffffff81245659>] efivarfs_file_read+0x49/0x100 [<ffffffff811ba797>] vfs_read+0x97/0x160 [<ffffffff811bb2e9>] SyS_read+0x59/0xd0 [<ffffffff81517629>] system_call_fastpath+0x16/0x1b -- Matt Fleming, Intel Open Source Technology Center ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel 3.14.2 oops: seems related to EFI [not found] ` <5379AE46.3000407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2014-05-19 11:27 ` Matt Fleming @ 2014-05-20 11:54 ` Matt Fleming 2014-05-20 12:12 ` Francis Moreau [not found] ` <20140520115421.GH4798-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org> 1 sibling, 2 replies; 6+ messages in thread From: Matt Fleming @ 2014-05-20 11:54 UTC (permalink / raw) To: Francis Moreau; +Cc: Borislav Petkov, LKML, linux-efi On Mon, 19 May, at 09:09:58AM, Francis Moreau wrote: > > I don't know, I can't really afford to configure/compile/test this new > kernel, sorry. It would be useful to know whether this issue still occurs when booting with the efi=old_map kernel parameter. -- Matt Fleming, Intel Open Source Technology Center ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel 3.14.2 oops: seems related to EFI 2014-05-20 11:54 ` Matt Fleming @ 2014-05-20 12:12 ` Francis Moreau [not found] ` <20140520115421.GH4798-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org> 1 sibling, 0 replies; 6+ messages in thread From: Francis Moreau @ 2014-05-20 12:12 UTC (permalink / raw) To: Matt Fleming; +Cc: Borislav Petkov, LKML, linux-efi On 05/20/2014 01:54 PM, Matt Fleming wrote: > On Mon, 19 May, at 09:09:58AM, Francis Moreau wrote: >> >> I don't know, I can't really afford to configure/compile/test this new >> kernel, sorry. > > It would be useful to know whether this issue still occurs when booting > with the efi=old_map kernel parameter. > ok I can try to boot with that parameter and see if the issue happens again. Unfortunately if it doesn't, we couldn't tell. Thanks ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20140520115421.GH4798-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>]
* Re: kernel 3.14.2 oops: seems related to EFI [not found] ` <20140520115421.GH4798-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org> @ 2014-05-27 14:02 ` Francis Moreau 0 siblings, 0 replies; 6+ messages in thread From: Francis Moreau @ 2014-05-27 14:02 UTC (permalink / raw) To: Matt Fleming; +Cc: Borislav Petkov, LKML, linux-efi On 05/20/2014 01:54 PM, Matt Fleming wrote: > On Mon, 19 May, at 09:09:58AM, Francis Moreau wrote: >> >> I don't know, I can't really afford to configure/compile/test this new >> kernel, sorry. > > It would be useful to know whether this issue still occurs when booting > with the efi=old_map kernel parameter. > the bug triggered: [ +0.002872] BUG: unable to handle kernel paging request at fffffffefd4a1e60 [ +0.000066] IP: [<ffffffff810648f8>] virt_efi_get_variable+0x48/0x80 [ +0.000054] PGD 280f067 PUD 0 [ +0.000031] Oops: 0000 [#1] PREEMPT SMP [ +0.000039] Modules linked in: tun ses enclosure usb_storage loop fuse joydev coretemp hwmon arc4 nls_iso8859_1 nls_c [ +0.000691] ac ext4 crc16 mbcache jbd2 hid_generic usbhid hid bcache sd_mod sr_mod crc_t10dif cdrom crct10dif_common [ +0.000289] CPU: 7 PID: 23293 Comm: systemd-udevd Tainted: G W 3.14.4-1-ARCH #1 [ +0.000057] Hardware name: CLEVO CO. W55xEU /W55xEU [ +0.000087] task: ffff88039557bae0 ti: ffff8802de764000 task.ti: ffff8802de764000 [ +0.000050] RIP: 0010:[<ffffffff810648f8>] [<ffffffff810648f8>] virt_efi_get_variable+0x48/0x80 [ +0.000064] RSP: 0018:ffff8802de765e58 EFLAGS: 00010082 [ +0.000037] RAX: fffffffefd4a1e18 RBX: ffff8800da88f000 RCX: 0000000000000000 [ +0.000048] RDX: ffff8800da88f400 RSI: ffff8800da88f000 RDI: 00000000ffffffff [ +0.000048] RBP: ffff8802de765e80 R08: ffff8802de765ec0 R09: 0000000000000000 [ +0.000047] R10: 0000000000000000 R11: 0000000000000246 R12: ffff8800da88f400 [ +0.000048] R13: 0000000000000000 R14: ffff8802de765ec0 R15: 0000000000000000 [ +0.000048] FS: 00007f10751057c0(0000) GS:ffff88041e3c0000(0000) knlGS:0000000000000000 [ +0.000054] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000040] CR2: fffffffefd4a1e60 CR3: 00000003c4afa000 CR4: 00000000001407e0 [ +0.000048] Stack: [ +0.000016] ffff8800da88f000 ffff8802de765ec0 ffffffff81b27c20 ffff8802de765f48 [ +0.000060] 3bc93ec9a0004bba ffff8802de765ea8 ffffffff813dbc91 ffff8800da88f000 [ +0.000060] 00007fffdc30c104 0000000000000004 ffff8802de765ef8 ffffffff81245779 [ +0.000060] Call Trace: [ +0.000025] [<ffffffff813dbc91>] efivar_entry_size+0x41/0x80 [ +0.000044] [<ffffffff81245779>] efivarfs_file_read+0x49/0x100 [ +0.000044] [<ffffffff811ba7d7>] vfs_read+0x97/0x160 [ +0.000037] [<ffffffff811bb329>] SyS_read+0x59/0xd0 [ +0.000039] [<ffffffff81517769>] system_call_fastpath+0x16/0x1b [ +0.000041] Code: ce 4d 89 c7 e8 9a 06 00 00 65 ff 04 25 a0 c7 00 00 48 8b 05 1b d4 86 00 4d 89 f9 4d 89 f0 4c 89 e9 [ +0.000335] RIP [<ffffffff810648f8>] virt_efi_get_variable+0x48/0x80 [ +0.000049] RSP <ffff8802de765e58> [ +0.000026] CR2: fffffffefd4a1e60 [ +0.016781] ---[ end trace 5a7017feeac75345 ]--- the sad thing is tht my system can't shutdown properly when it happens. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-05-27 14:02 UTC | newest]
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[not found] ` <53777F7B.8060407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-05-18 13:42 ` kernel 3.14.2 oops: seems related to EFI Borislav Petkov
[not found] ` <20140518134206.GA8040-fF5Pk5pvG8Y@public.gmane.org>
2014-05-19 7:09 ` Francis Moreau
[not found] ` <5379AE46.3000407-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-05-19 11:27 ` Matt Fleming
2014-05-20 11:54 ` Matt Fleming
2014-05-20 12:12 ` Francis Moreau
[not found] ` <20140520115421.GH4798-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-05-27 14:02 ` Francis Moreau
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