Greetings!

Getting these from time to time when I run the machine for longer periods building:

[...]
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WARNING: CPU: 12 PID: 44394 at arch/powerpc/kernel/process.c:437 giveup_all+0x90/0x1d0
Modules linked in: md5 md5_ppc sha512_generic cmac cifs cifs_arc4 dns_resolver nls_ucs2_utils cifs_md4 zram af_packet cfg80211 rfkill evdev input_leds hid_generic usbhid hid radeon ctr xts cbc aes_generic libaes ofpart vmx_crypto powernv_flash gf128mul drm_suballoc_helper xhci_pci i2c_algo_bit mtd backlight drm_ttm_helper ttm drm_exec xhci_hcd ibmpowernv drm_display_helper opal_prd hwmon at24 regmap_i2c usbcore usb_common
CPU: 12 UID: 250 PID: 44394 Comm: sh Tainted: G                T  6.14.8-gentoo-P9 #1
Tainted: [T]=RANDSTRUCT
Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 PowerNV
NIP:  c0000000000181c0 LR: c00000000001819c CTR: c00000000018fe50
REGS: c00000008f603500 TRAP: 0700   Tainted: G                T   (6.14.8-gentoo-P9)
MSR:  9000000002823032 <SF,HV,VEC,VSX,FP,ME,IR,DR,RI>  CR: 84042822  XER: 20040000
CFAR: c000000000018110 IRQMASK: 3 
GPR00: c000000000019fd0 c00000008f6037a0 c00000000115b100 9000000002803032 
GPR04: c00000000bec0080 0000000000000000 c00000000213dec8 0000000004000000 
GPR08: 0000000000002000 0000000000000001 0000000002002000 0000000000002000 
GPR12: c00000000018ca30 c0000007ffff6800 0000000000000000 c00000003bd322c0 
GPR16: 0000000000000003 00000000fff9cb3c 0000000001b42e30 0000000000000000 
GPR20: 000000000072b0f0 0000000000000000 c000000002117c00 00000000007401c0 
GPR24: c00000003bd32800 c00000000bec0e00 00000007fcabb000 c0000000020fd8b8 
GPR28: c0000000010b0218 c00000003bd31a80 100000000080f032 c00000003bd31a80 
NIP [c0000000000181c0] giveup_all+0x90/0x1d0
LR [c00000000001819c] giveup_all+0x6c/0x1d0
Call Trace:
[c00000008f6037a0] [000006a3de1de5ff] 0x6a3de1de5ff (unreliable)
[c00000008f6037d0] [c000000000019fd0] __switch_to+0x150/0x570
[c00000008f603840] [c000000000e4115c] __schedule+0x32c/0x12a0
[c00000008f603970] [c000000000e424f4] preempt_schedule_irq+0x64/0xa0
[c00000008f6039a0] [c000000000028bb0] interrupt_exit_kernel_prepare+0x1f0/0x220
[c00000008f6039e0] [c00000000000cb58] interrupt_return_srr_kernel+0x8/0x124
--- interrupt: 900 at restore_user_regs+0x1b4/0x470
NIP:  c000000000031564 LR: c0000000000344a4 CTR: 0000000000000000
REGS: c00000008f603a10 TRAP: 0900   Tainted: G                T   (6.14.8-gentoo-P9)
MSR:  9000000000009032 <SF,HV,EE,ME,IR,DR,RI>  CR: 48048224  XER: 00000000
CFAR: 0000000000000000 IRQMASK: 0 
GPR00: c0000000000342d0 c00000008f603cb0 c00000000115b100 c00000008f603e80 
GPR04: 00000000fff9c020 0000000000000000 c0000000010b01b0 0000000002000000 
GPR08: 00000000fff9c400 00000000ffffffff 0000000000000002 0000000000000003 
GPR12: c0000000000341e0 c0000007ffff6800 0000000000000000 0000000000000000 
GPR16: 0000000000000003 00000000fff9cb3c 0000000001b42e30 0000000000000000 
GPR20: 000000000072b0f0 0000000000000000 0000000000740154 00000000007401c0 
GPR24: 000000000072b36a 0000000000000008 0000000001b53e95 c0000000010b0218 
GPR28: 000000000280d032 c0000000010b0218 00000000fff9c020 c00000008f603e80 
NIP [c000000000031564] restore_user_regs+0x1b4/0x470
LR [c0000000000344a4] compat_sys_sigreturn+0x2c4/0x310
--- interrupt: 900
[c00000008f603cb0] [c00000008f603cf0] 0xc00000008f603cf0 (unreliable)
[c00000008f603cf0] [c0000000000342d0] compat_sys_sigreturn+0xf0/0x310
[c00000008f603d70] [c000000000029884] system_call_exception+0x364/0x370
[c00000008f603e50] [c00000000000c7d4] system_call_common+0xf4/0x258
--- interrupt: c01 at 0x5bb5e8
NIP:  00000000005bb5e8 LR: 00000000005bb5c4 CTR: 0000000000000000
REGS: c00000008f603e80 TRAP: 0c01   Tainted: G                T   (6.14.8-gentoo-P9)
MSR:  100000000080f032 <HV,VSX,EE,PR,FP,ME,IR,DR,RI>  CR: 24048222  XER: 00000000
IRQMASK: 0 
GPR00: 0000000000000003 00000000fff9cae0 00000000f79e4540 0000000000000000 
GPR04: 00000000fff9cb3c 0000000000000080 0000000001b607ec 0000000000000000 
GPR08: 00000000fff9cb3d 0000000000000000 0000000000000000 0000000000000000 
GPR12: 0000000000000000 000000000073feb4 0000000000000000 0000000000000000 
GPR16: 0000000000000003 00000000fff9cb3c 0000000001b42e30 0000000000000000 
GPR20: 000000000072b0f0 0000000000000000 0000000000740154 00000000007401c0 
GPR24: 000000000072b36a 0000000000000008 0000000001b53e95 00000000007401a8 
GPR28: 0000000000000000 0000000000000008 00000000006bffa4 00000000fff9cb10 
NIP [00000000005bb5e8] 0x5bb5e8
LR [00000000005bb5c4] 0x5bb5c4
--- interrupt: c01
Code: 7c0802a6 f8010040 4bffff11 77ca0080 39200000 4182001c 3d400200 39200001 614a2000 7fc85038 7c285000 7d20489e <0b090000> 73c92000 40820058 77de0200 
---[ end trace 0000000000000000 ]---


Kernel .config and full dmesg attached.

Regards,
Erhard