kernel 5.14 RIP with openafs 1.8.8

Hi,

I tried kernel 5.14.9 and openafs 1.8.8. It fails just after login with

Oct  4 11:16:29 f9pc45 kernel: [   77.384160] RIP: 0010:0x0
Oct  4 11:16:29 f9pc45 kernel: [   77.384164] Code: Unable to access 
opcode bytes at RIP 0xffffffffffffffd6.
Oct  4 11:16:29 f9pc45 kernel: [   77.384165] RSP: 0000:ffffaa65c28bfd70 
EFLAGS: 00010246
Oct  4 11:16:29 f9pc45 kernel: [   77.384167] RAX: 0000000000000000 RBX: 
ffffaa65c28bfe08 RCX: 0000000000000000
Oct  4 11:16:29 f9pc45 kernel: [   77.384168] RDX: 0017fffc00000015 RSI: 
0000000000000000 RDI: ffffd098856c0980
Oct  4 11:16:29 f9pc45 kernel: [   77.384169] RBP: ffffd098856c0980 R08: 
ffff937d19c17838 R09: 0000000000000000
Oct  4 11:16:29 f9pc45 kernel: [   77.384170] R10: 0000000000000000 R11: 
0000000000000000 R12: ffff937ccb8005b8
Oct  4 11:16:29 f9pc45 kernel: [   77.384171] R13: ffff937cc7dd1000 R14: 
00000000000003c0 R15: ffff937cd6776f78
Oct  4 11:16:29 f9pc45 kernel: [   77.384172] FS: 00007ffbd7dadc80(0000) 
GS:ffff9383beb80000(0000) knlGS:0000000000000000
Oct  4 11:16:29 f9pc45 kernel: [   77.384173] CS:  0010 DS: 0000 ES: 
0000 CR0: 0000000080050033
Oct  4 11:16:29 f9pc45 kernel: [   77.384174] CR2: ffffffffffffffd6 CR3: 
0000000126418000 CR4: 0000000000350ee0
Oct  4 11:16:29 f9pc45 kernel: [   77.384175] Call Trace:
Oct  4 11:16:29 f9pc45 kernel: [   77.384177] 
filemap_page_mkwrite+0xb3/0x150
Oct  4 11:16:29 f9pc45 kernel: [   77.384181] do_page_mkwrite+0x55/0xb0
Oct  4 11:16:29 f9pc45 kernel: [   77.384183] do_wp_page+0x22b/0x2d0
Oct  4 11:16:29 f9pc45 kernel: [   77.384185] __handle_mm_fault+0xc82/0x14f0
Oct  4 11:16:29 f9pc45 kernel: [   77.384187] handle_mm_fault+0xcf/0x2a0
Oct  4 11:16:29 f9pc45 kernel: [   77.384188] do_user_addr_fault+0x1c1/0x680
Oct  4 11:16:29 f9pc45 kernel: [   77.384191] exc_page_fault+0x72/0x150
Oct  4 11:16:29 f9pc45 kernel: [   77.384194]  ? asm_exc_page_fault+0x8/0x30
Oct  4 11:16:29 f9pc45 kernel: [   77.384197] asm_exc_page_fault+0x1e/0x30
Oct  4 11:16:29 f9pc45 kernel: [   77.384199] RIP: 0033:0x7ffbdad69ae8
Oct  4 11:16:29 f9pc45 kernel: [   77.384200] Code: 07 06 00 0f 87 f0 00 
00 00 c5 fe 6f 01 c5 fe 6f 49 e0 c5 fe 6f 51 c0 c5 fe 6f 59 a0 48 81 e9 
80 00 00 00 48 81 ea 80 00 00 00 <c4> c1 7d 7f 01 c4 c1 7d 7f 49 e0 c4 
c1 7d 7f 51 c0 c4 c1 7d 7f 59
Oct  4 11:16:29 f9pc45 kernel: [   77.384201] RSP: 002b:00007ffc69c88fd8 
EFLAGS: 00010202
Oct  4 11:16:29 f9pc45 kernel: [   77.384202] RAX: 00007ffbcf153088 RBX: 
000000000000007c RCX: 0000556e6fdff878
Oct  4 11:16:29 f9pc45 kernel: [   77.384203] RDX: 0000000000007ef8 RSI: 
0000556e6fdf79a0 RDI: 00007ffbcf153088
Oct  4 11:16:29 f9pc45 kernel: [   77.384204] RBP: 0000556e6fdf6900 R08: 
0000000000000000 R09: 00007ffbcf15afe0
Oct  4 11:16:29 f9pc45 kernel: [   77.384205] R10: 000000000007ab90 R11: 
00007ffbcf15afe0 R12: 0000556e6fd75d00
Oct  4 11:16:29 f9pc45 kernel: [   77.384206] R13: 00007ffc69c89060 R14: 
0000556e6fdf6918 R15: 00007ffc69c89064
Oct  4 11:16:29 f9pc45 kernel: [   77.384207] Modules linked in: ceph 
libceph fscache netfs intel_rapl_msr intel_rapl_common 
snd_hda_codec_realtek edac_mce_amd snd_hda_codec_generic bnep iwlmvm 
ledtrig_audio kvm_amd snd_hda_codec_hdmi uvcvideo btusb snd_hda_intel 
videobuf2_vmalloc snd_intel_dspcfg snd_intel_sdw_acpi btrtl 
videobuf2_memops videobuf2_v4l2 btbcm libafs(PO) mac80211 
videobuf2_common snd_usb_audio btintel libarc4 snd_hda_codec amdgpu kvm 
snd_usbmidi_lib irqbypass bluetooth iommu_v2 snd_rawmidi videodev 
snd_hda_core snd_seq_device iwlwifi gpu_sched snd_hwdep rapl mc 
ecdh_generic drm_ttm_helper pcspkr mxm_wmi wmi_bmof snd_pcm ttm k10temp 
i2c_piix4 igb snd_timer cfg80211 drm_kms_helper snd i2c_algo_bit 
soundcore cec rfkill dca acpi_cpufreq vfat fat vboxnetadp(O) 
vboxnetflt(O) vboxdrv(O) nfsd nfs_acl fuse lockd auth_rpcgss grace drm 
sunrpc xfs ccp crct10dif_pclmul crc32_pclmul crc32c_intel 
ghash_clmulni_intel sp5100_tco nvme nvme_core wmi nct6775 hwmon_vid
Oct  4 11:16:29 f9pc45 kernel: [   77.384244] CR2: 0000000000000000
Oct  4 11:16:29 f9pc45 kernel: [   77.384245] ---[ end trace 
543b6b0fa0486581 ]---

any clues or patches?

Best regards,
Andrej

-- 
_____________________________________________________________
    prof. dr. Andrej Filipcic,   E-mail: [email protected]
    Department of Experimental High Energy Physics - F9
    Jozef Stefan Institute, Jamova 39, P.o.Box 3000
    SI-1001 Ljubljana, Slovenia
    Tel.: +386-1-477-3674    Fax: +386-1-477-3166
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