'[coreboot] Re: Extended IvyBridge CPU configuration'

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List:       linuxbios
Subject:    [coreboot] Re: Extended IvyBridge CPU configuration
From:       Lars Hochstetter <lars.hochstetter () fu-berlin ! de>
Date:       2019-12-25 17:41:43
Message-ID: 908f35b7-8737-5899-7ee0-213fefdb8a3a () fu-berlin ! de
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Update: I flashed the original Lenovo BIOS v2.81 (with keyboard EC mod) 
and the issues seem to be gone. Additionally the RAM now runs with 
2133MHz without the system freezing and I also can compile crossgcc-i386 
with CPUS=8 without issues. Watching videos on YT using Firefox works, too.

The Intel ME is also back. Could there be an issue with the system 
initialization done by the Intel ME which does not occur if the Intel ME 
is fully functional?

On 12/24/19 1:14 PM, Lars Hochstetter wrote:
> There are some similarities: the system freezes (i.e. UI is 
> unresponsive, you have to hold down the power button to reset the 
> system) and sometimes it outright crashes into a reboot. The crashes 
> seem to trigger when the CPU is running high loads - take note though: 
> with your HT option patch I could run the stress tests of the CoreFreq 
> (https://github.com/cyring/CoreFreq) tool without crashes / freezes 
> but I only tried for a couple minutes.
>
> I do get crashes sometimes when I compile crossgcc-i386 
> (CPUS=$(nproc), with and without HT enabled through nosmt in the GRUB 
> config) but more often make runs into some error and simply won't 
> compile the sources (I notice a certain tendency towards the gcc 
> compilation) - I would usually recompile but it now seems to be more 
> persistent. There seems to be also a good chance to crash when the CPU 
> isn't fully loaded but multiple applications are open - most notably 
> Firefox when watching Youtube videos and doing something in another 
> application / Firefox tab.
>
> Originally I was running coreboot v4.6, then changed to v4.8.1 then 
> v4.9, then for some time to master (blobs were based on BIOS v2.79, me 
> disabled and neutered). I'd argue that the issues started appearing 
> after my switch to v4.11. However I can not rule out hardware issues, 
> as I overtightened the screws on the heatsink last time I was working 
> on my T430 - maybe the overtightening caused physical damage to some 
> solder joints on the CPU / socket.
>
> Here are some system stats:
>
> CPU: i7-3840QM, TurboBoost is disabled through the intel_pstate driver 
> to prevent my laptop from melting
> RAM: HyperX 2x8GB 2133MHz DDR3 1.35V HX321LS11IB2K2/16, it runs at 
> 1600MHz (the "ignore fuses" option isn't set) though as the system 
> would freeze shortly after logging in
> Mainboard: no dGPU variant
> OS: Debian 10.2 64bit with the default Gnome3 DE
> Mods: the 7 row keyboard mod and the FHD screen mod (maybe that is why 
> I didn't see any visual artifacts)
> coreboot blobs (ifd, me, gbe): based on BIOS v2.81, me is neutered and 
> disabled
>
> I managed to capture following dmesg, when the system soft locked 
> while Firefox was open and I managed to switch to a tty. If I recall 
> correctly there was some audio repetition.
>
> [  926.163124] ISO 9660 Extensions: RRIP_1991A
> [ 1094.740789] usb 1-1.2: USB disconnect, device number 8
> [ 1267.534956] BUG: unable to handle kernel paging request at 
> fffff60050b36388
> [ 1267.534960] PGD 4617e2067 P4D 4617e2067 PUD 0
> [ 1267.534964] Oops: 0000 [#1] SMP PTI
> [ 1267.534966] CPU: 2 PID: 5953 Comm: Compositor Tainted: G           
> OE     4.19.0-6-amd64 #1 Debian 4.19.67-2+deb10u2
> [ 1267.534967] Hardware name: LENOVO 2347CM9/2347CM9, BIOS CBET4000 
> 4.11 11/19/2019
> [ 1267.534973] RIP: 0010:filemap_map_pages+0x9a/0x3a0
> [ 1267.534974] Code: ff 0f 84 65 01 00 00 4c 39 6c 24 20 0f 87 77 01 
> 00 00 49 8b 0f 48 85 c9 0f 84 cc 00 00 00 48 89 c8 83 e0 03 0f 85 cb 
> 02 00 00 <48> 8b 41 08 48 8d 78 ff a8 01 48 0f 44 f9 8b 47 34 85 c0 74 
> d3 8d
> [ 1267.534976] RSP: 0000:ffffb032825dfd88 EFLAGS: 00010246
> [ 1267.534977] RAX: 0000000000000000 RBX: 0400000000000080 RCX: 
> fffff60050b36380
> [ 1267.534978] RDX: 0000000000000001 RSI: 000000000000003b RDI: 
> 000000045d859067
> [ 1267.534979] RBP: 0000000000000001 R08: 000000042cd8d000 R09: 
> ffff93eb2bdd1da8
> [ 1267.534980] R10: 00000000000001c0 R11: 0000000000000185 R12: 
> ffff93eb580a9518
> [ 1267.534981] R13: 000000000000018a R14: ffffb032825dfe18 R15: 
> ffff93eb2bdd1e00
> [ 1267.534983] FS:  00007f41b308d700(0000) GS:ffff93eb61280000(0000) 
> knlGS:0000000000000000
> [ 1267.534984] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1267.534985] CR2: fffff60050b36388 CR3: 00000004584be004 CR4: 
> 00000000001606e0
> [ 1267.534986] Call Trace:
> [ 1267.534992]  __handle_mm_fault+0x1030/0x1270
> [ 1267.534995]  handle_mm_fault+0xd6/0x200
> [ 1267.534997]  __do_page_fault+0x249/0x4f0
> [ 1267.535001]  ? page_fault+0x8/0x30
> [ 1267.535002]  page_fault+0x1e/0x30
> [ 1267.535005] RIP: 0033:0x7f41c7abe284
> [ 1267.535006] Code: 29 4f 10 0f 29 57 20 0f 29 5f 30 48 83 c7 40 48 
> 83 fa 40 77 d0 0f 11 29 0f 11 71 f0 0f 11 79 e0 44 0f 11 41 d0 41 0f 
> 11 23 c3 <0f> 10 26 0f 10 6e 10 0f 10 76 20 0f 10 7e 30 44 0f 10 44 16 
> f0 4c
> [ 1267.535007] RSP: 002b:00007f41b3089788 EFLAGS: 00010202
> [ 1267.535009] RAX: 00007f418f9b5600 RBX: 00007f418f9b5600 RCX: 
> 00007f418f9b5600
> [ 1267.535010] RDX: 0000000000000194 RSI: 00007f417f8a11c0 RDI: 
> 00007f418f9b5600
> [ 1267.535011] RBP: 00007f41b308a150 R08: 0000000000000065 R09: 
> 00007f41c0f50030
> [ 1267.535012] R10: 00007f41c0efaa90 R11: 00007f418f9b3984 R12: 
> 0000000000001e00
> [ 1267.535013] R13: 0000000000000093 R14: 0000000000000065 R15: 
> 0000000000000000
> [ 1267.535014] Modules linked in: isofs uas usb_storage xt_conntrack 
> ipt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo nft_counter 
> xt_addrtype nft_compat nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat 
> nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c nf_tables 
> nfnetlink br_netfilter bridge stp llc ctr ccm fuse aufs(OE) overlay 
> intel_rapl arc4 x86_pkg_temp_thermal intel_powerclamp 
> snd_hda_codec_hdmi uvcvideo iwldvm kvm_intel mac80211 
> snd_hda_codec_realtek kvm snd_hda_codec_generic videobuf2_vmalloc 
> videobuf2_memops irqbypass videobuf2_v4l2 videobuf2_common iwlwifi 
> snd_hda_intel crct10dif_pclmul crc32_pclmul videodev snd_hda_codec 
> joydev ghash_clmulni_intel sg media intel_cstate serio_raw 
> intel_uncore intel_rapl_perf snd_hda_core pcspkr cfg80211 
> thinkpad_acpi snd_hwdep mei_me iTCO_wdt snd_pcm iTCO_vendor_support
> [ 1267.535048]  mei nvram snd_timer ac snd tpm_tis tpm_tis_core 
> soundcore rfkill tpm battery pcc_cpufreq rng_core evdev coretemp 
> parport_pc ppdev lp parport ip_tables x_tables autofs4 ext4 crc16 
> mbcache jbd2 crc32c_generic fscrypto ecb dm_mod sr_mod cdrom sd_mod 
> crc32c_intel ahci libahci i915 libata scsi_mod i2c_i801 aesni_intel 
> aes_x86_64 crypto_simd psmouse cryptd glue_helper lpc_ich xhci_pci 
> ehci_pci i2c_algo_bit ehci_hcd sdhci_pci drm_kms_helper cqhci sdhci 
> xhci_hcd mmc_core drm usbcore e1000e fan usb_common thermal button video
> [ 1267.535078] CR2: fffff60050b36388
> [ 1267.535080] ---[ end trace 19ba3613cfbc34f7 ]---
> [ 1267.535082] RIP: 0010:filemap_map_pages+0x9a/0x3a0
> [ 1267.535083] Code: ff 0f 84 65 01 00 00 4c 39 6c 24 20 0f 87 77 01 
> 00 00 49 8b 0f 48 85 c9 0f 84 cc 00 00 00 48 89 c8 83 e0 03 0f 85 cb 
> 02 00 00 <48> 8b 41 08 48 8d 78 ff a8 01 48 0f 44 f9 8b 47 34 85 c0 74 
> d3 8d
> [ 1267.535084] RSP: 0000:ffffb032825dfd88 EFLAGS: 00010246
> [ 1267.535085] RAX: 0000000000000000 RBX: 0400000000000080 RCX: 
> fffff60050b36380
> [ 1267.535086] RDX: 0000000000000001 RSI: 000000000000003b RDI: 
> 000000045d859067
> [ 1267.535087] RBP: 0000000000000001 R08: 000000042cd8d000 R09: 
> ffff93eb2bdd1da8
> [ 1267.535088] R10: 00000000000001c0 R11: 0000000000000185 R12: 
> ffff93eb580a9518
> [ 1267.535089] R13: 000000000000018a R14: ffffb032825dfe18 R15: 
> ffff93eb2bdd1e00
> [ 1267.535091] FS:  00007f41b308d700(0000) GS:ffff93eb61280000(0000) 
> knlGS:0000000000000000
> [ 1267.535092] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1267.535093] CR2: fffff60050b36388 CR3: 00000004584be004 CR4: 
> 00000000001606e0
>
> On 12/23/19 2:16 PM, Evgeny Zinoviev via coreboot wrote:
>>> I however also noticed severe freezes / crashes (OS Debian 10.2) but 
>>> I'm unsure if they are related to the patch or something different.
>> Have you got any logs? Do these crashes/freezes look like 
>> https://ticket.coreboot.org/issues/121?
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