tempesta
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tempesta-tech
Kernel bug at crypto/cryptd.c, invalid opcode
I’ve been switching between different patched kernels over the past six months, so it’s possible that some conflicts have built up over time.
The error appears periodically — every few seconds — and it seems like some service is trying to start. This error occurs when Tempesta is shut down.
If I start Tempesta for testing purposes, the OS crashes, even though some tests may finish successfully beforehand.
dmesg log
[44993.486399] ---[ end trace 89265506c77e0709 ]---
[44993.486401] RIP: 0010:cryptd_find_alg_cached+0x164/0x170 [cryptd]
[44993.486403] Code: 07 00 0f 1f 40 00 48 83 c4 20 48 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b e9 60 ff ff ff 48 8b 7d c8 c6 07 00 0f 1f 40 00 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 f9 48
[44993.486404] RSP: 0018:ffffb905c099bc60 EFLAGS: 00010202
[44993.486405] RAX: 0000000000000008 RBX: ffff9dc922f32848 RCX: 000000008010000e
[44993.486406] RDX: 0000000000000001 RSI: 000000008010000e RDI: ffffffffc089be44
[44993.486407] RBP: ffffb905c099bca8 R08: 0000000000000001 R09: ffffffffb4906d00
[44993.486408] R10: ffff9dc929429200 R11: 0000000000000001 R12: ffffb905c099bcb8
[44993.486409] R13: 0000000000002000 R14: ffffffffc089c2d8 R15: 0000000000000008
[44993.486410] FS: 00007f8d52b227c0(0000) GS:ffff9dca76d00000(0000) knlGS:0000000000000000
[44993.486411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[44993.486412] CR2: 00007f8d522e5025 CR3: 000000019c36c002 CR4: 00000000003706e0
[44998.495994] ------------[ cut here ]------------
[44998.495999] kernel BUG at crypto/cryptd.c:957!
[44998.496004] invalid opcode: 0000 [#8981] SMP PTI
[44998.496006] CPU: 2 PID: 25428 Comm: charon Tainted: G D OE 5.10.35.tfw-4c9ba16 #1
[44998.496007] Hardware name: Timi TM1613/TM1613, BIOS A06 10/28/2016
[44998.496011] RIP: 0010:cryptd_find_alg_cached+0x164/0x170 [cryptd]
[44998.496013] Code: 07 00 0f 1f 40 00 48 83 c4 20 48 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b e9 60 ff ff ff 48 8b 7d c8 c6 07 00 0f 1f 40 00 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 f9 48
[44998.496014] RSP: 0018:ffffb905c212bc60 EFLAGS: 00010202
[44998.496016] RAX: 0000000000000008 RBX: ffff9dc922f32848 RCX: 0000000000000000
[44998.496017] RDX: 0000000000000001 RSI: ffffffffc089b100 RDI: ffffffffc089be44
[44998.496018] RBP: ffffb905c212bca8 R08: ffff9dc922f32848 R09: 0000000000000011
[44998.496019] R10: ffffb905c212bd38 R11: ffffb906c212bcbe R12: ffffb905c212bcb8
[44998.496020] R13: 0000000000002000 R14: ffffffffc089c2d8 R15: 0000000000000008
[44998.496022] FS: 00007fc4639797c0(0000) GS:ffff9dca76d00000(0000) knlGS:0000000000000000
[44998.496023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[44998.496024] CR2: 00007fc46313c025 CR3: 000000019c36e006 CR4: 00000000003706e0
[44998.496025] Call Trace:
[44998.496029] ? crypto_alloc_skcipher+0x30/0x30
[44998.496032] cryptd_alloc_skcipher+0x90/0xe0 [cryptd]
[44998.496034] ? crypto_mod_get+0x19/0x60
[44998.496035] ? __crypto_alg_lookup+0x8f/0x140
[44998.496038] simd_skcipher_init+0x26/0x60 [crypto_simd]
[44998.496040] crypto_skcipher_init_tfm+0x3a/0x40
[44998.496042] crypto_create_tfm_node+0x5f/0x110
[44998.496043] crypto_alloc_tfm_node+0x5d/0x120
[44998.496045] crypto_alloc_skcipher+0x1f/0x30
[44998.496047] skcipher_bind+0xe/0x10 [algif_skcipher]
[44998.496049] alg_bind+0x89/0x150 [af_alg]
[44998.496051] __sys_bind+0xef/0x110
[44998.496054] ? exit_to_user_mode_prepare+0x3d/0x170
[44998.496056] __x64_sys_bind+0x1a/0x20
[44998.496058] do_syscall_64+0x38/0x90
[44998.496060] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[44998.496061] RIP: 0033:0x7fc463ede4bb
lsmod output
root@pc:/home/symstu# lsmod
Module Size Used by
rfcomm 81920 4
xt_conntrack 16384 1
nft_chain_nat 16384 3
xt_MASQUERADE 20480 1
nf_conntrack_netlink 49152 0
xfrm_user 36864 1
xfrm_algo 16384 1 xfrm_user
nft_counter 16384 15
xt_addrtype 16384 2
nft_compat 20480 4
nf_tables 200704 43 nft_compat,nft_counter,nft_chain_nat
nfnetlink 16384 4 nft_compat,nf_conntrack_netlink,nf_tables
br_netfilter 28672 0
bridge 217088 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
twofish_generic 20480 0
twofish_avx_x86_64 53248 11204
twofish_x86_64_3way 28672 1 twofish_avx_x86_64
twofish_x86_64 16384 2 twofish_x86_64_3way,twofish_avx_x86_64
twofish_common 24576 4 twofish_x86_64,twofish_generic,twofish_x86_64_3way,twofish_avx_x86_64
serpent_avx2 49152 0
serpent_avx_x86_64 49152 1 serpent_avx2
serpent_sse2_x86_64 53248 0
serpent_generic 28672 3 serpent_avx2,serpent_sse2_x86_64,serpent_avx_x86_64
blowfish_generic 16384 0
blowfish_x86_64 24576 0
blowfish_common 20480 2 blowfish_generic,blowfish_x86_64
cast5_avx_x86_64 53248 0
cast5_generic 24576 1 cast5_avx_x86_64
cast_common 16384 2 cast5_generic,cast5_avx_x86_64
des_generic 16384 0
libdes 24576 1 des_generic
camellia_generic 32768 0
camellia_aesni_avx2 28672 0
camellia_aesni_avx_x86_64 28672 1 camellia_aesni_avx2
camellia_x86_64 53248 2 camellia_aesni_avx_x86_64,camellia_aesni_avx2
xcbc 16384 0
md4 16384 0
vboxnetadp 28672 0
vboxnetflt 28672 0
vboxdrv 520192 2 vboxnetadp,vboxnetflt
cmac 16384 2
algif_hash 16384 1
algif_skcipher 16384 11205
af_alg 28672 6 algif_hash,algif_skcipher
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 131072 1
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
ledtrig_audio 16384 1 snd_hda_codec_generic
overlay 118784 0
bnep 24576 2
binfmt_misc 24576 1
snd_hda_intel 53248 3
snd_intel_dspcfg 28672 1 snd_hda_intel
snd_hda_codec 147456 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 94208 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 114688 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
intel_rapl_msr 20480 0
intel_rapl_common 24576 1 intel_rapl_msr
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
x86_pkg_temp_thermal 20480 0
intel_powerclamp 20480 0
coretemp 20480 0
kvm_intel 294912 0
snd_rawmidi 36864 1 snd_seq_midi
mei_hdcp 24576 0
kvm 782336 1 kvm_intel
iwlmvm 405504 0
uvcvideo 98304 0
btusb 57344 0
videobuf2_vmalloc 20480 1 uvcvideo
btrtl 20480 1 btusb
mac80211 962560 1 iwlmvm
btbcm 16384 1 btusb
crct10dif_pclmul 16384 1
btintel 28672 1 btusb
videobuf2_memops 20480 1 videobuf2_vmalloc
ghash_clmulni_intel 16384 0
i915 2244608 11
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
videobuf2_v4l2 32768 1 uvcvideo
libarc4 16384 1 mac80211
bluetooth 589824 33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
videobuf2_common 61440 2 videobuf2_v4l2,uvcvideo
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
aesni_intel 372736 7
nls_iso8859_1 16384 1
iwlwifi 364544 1 iwlmvm
videodev 249856 3 videobuf2_v4l2,uvcvideo,videobuf2_common
ecdh_generic 16384 1 bluetooth
snd_timer 40960 2 snd_seq,snd_pcm
crypto_simd 16384 8 camellia_aesni_avx_x86_64,camellia_aesni_avx2,serpent_avx2,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,cast5_avx_x86_64,twofish_avx_x86_64
drm_kms_helper 233472 1 i915
ecc 32768 1 ecdh_generic
mc 57344 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
cryptd 28672 11215 crypto_simd,ghash_clmulni_intel
glue_helper 16384 9 camellia_aesni_avx_x86_64,camellia_x86_64,camellia_aesni_avx2,twofish_x86_64_3way,serpent_avx2,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,twofish_avx_x86_64
rapl 20480 0
cec 53248 2 drm_kms_helper,i915
joydev 24576 0
input_leds 16384 0
intel_cstate 20480 0
i2c_algo_bit 16384 1 i915
dell_wmi_aio 16384 0
serio_raw 20480 0
snd 94208 17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
intel_wmi_thunderbolt 20480 0
mei_me 40960 1
sparse_keymap 16384 1 dell_wmi_aio
cfg80211 843776 3 iwlmvm,iwlwifi,mac80211
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
wmi_bmof 16384 0
soundcore 16384 1 snd
sysimgblt 16384 1 drm_kms_helper
mei 118784 3 mei_hdcp,mei_me
intel_xhci_usb_role_switch 16384 0
hp_wireless 16384 0
mac_hid 16384 0
acpi_pad 184320 0
sch_fq_codel 20480 1
nf_nat_pptp 20480 0
nf_conntrack_pptp 24576 1 nf_nat_pptp
nf_nat 45056 3 nf_nat_pptp,nft_chain_nat,xt_MASQUERADE
nf_conntrack 151552 6 xt_conntrack,nf_nat,nf_conntrack_pptp,nf_nat_pptp,nf_conntrack_netlink,xt_MASQUERADE
nf_defrag_ipv6 24576 1 nf_conntrack
nf_defrag_ipv4 16384 1 nf_conntrack
msr 16384 0
parport_pc 45056 0
nfsd 491520 13
ppdev 24576 0
drm 548864 7 drm_kms_helper,i915
auth_rpcgss 135168 1 nfsd
lp 20480 0
nfs_acl 16384 1 nfsd
lockd 102400 1 nfsd
parport 65536 3 parport_pc,lp,ppdev
grace 16384 2 nfsd,lockd
efi_pstore 16384 0
sunrpc 569344 17 nfsd,auth_rpcgss,lockd,nfs_acl
ip_tables 32768 0
x_tables 49152 5 xt_conntrack,nft_compat,xt_addrtype,ip_tables,xt_MASQUERADE
autofs4 45056 2
btrfs 1323008 0
blake2b_generic 20480 0
zstd_compress 176128 1 btrfs
raid10 57344 0
raid456 155648 0
async_raid6_recov 24576 1 raid456
async_memcpy 20480 2 raid456,async_raid6_recov
async_pq 24576 2 raid456,async_raid6_recov
async_xor 20480 3 async_pq,raid456,async_raid6_recov
async_tx 20480 5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor 24576 2 async_xor,btrfs
raid6_pq 114688 4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c 16384 5 nf_conntrack,nf_nat,btrfs,nf_tables,raid456
raid1 49152 0
raid0 24576 0
multipath 20480 0
linear 20480 0
nvme 45056 4
ahci 40960 0
i2c_i801 32768 0
psmouse 155648 0
nvme_core 122880 6 nvme
i2c_smbus 20480 1 i2c_i801
libahci 36864 1 ahci
crc32_pclmul 16384 0
wmi 32768 3 intel_wmi_thunderbolt,dell_wmi_aio,wmi_bmof
video 49152 1 i915
pinctrl_sunrisepoint 28672 0
Expected Behavior No errors in dmesg output
Configuration file All kernels I have used from tempesta-ci, last one was - 5.10.35.tfw-4c9ba16. First one i tried from master - https://github.com/tempesta-tech/tempesta/commit/b150f736fd4372dfbb0b03b2b777cef4fed41f6e
After a full OS reinstall, the error disappeared — so it’s clearly not a hardware issue, but rather something related to the previous system state or configuration