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Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [BUG] powerpc/pseries: WARN in __replay_soft_interrupts() during SMP bringup on Power11 (7.2.0-rc5) To: Venkat Rao Bagalkote , "Mukesh Kumar Chaurasiya (IBM)" , Madhavan Srinivasan , Christophe Leroy Cc: linuxppc-dev , LKML References: <6f9bfb0f-b14c-468e-bb9f-c157d120d0dc@linux.ibm.com> Content-Language: en-US From: Shrikanth Hegde In-Reply-To: <6f9bfb0f-b14c-468e-bb9f-c157d120d0dc@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: ieDwXKdORzNRILeB1OelveeOFHd9ZYYK X-Proofpoint-ORIG-GUID: NBKyUE3_cioRgYZlYUJ2ViujEjJuzGfH X-Proofpoint-Spam-Info: AW1haW4tMjYwODA0MDA0OCBTYWx0ZWRfXz5a82doekTZ9 Y3UQJ2saMLRlbt31fn2MKOfRl/M/lAZt2wSqYOZg31IlvFMSCgeACDA+V+DTr6XVSX3f/GqI2p8 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engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-04_01,2026-08-03_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 phishscore=0 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608040048 hi venkat, On 8/4/26 11:39 AM, Venkat Rao Bagalkote wrote: > Greetings!! > > > I'm seeing a reproducible warning during early boot on a Power11 pSeries > LPAR with Linux 7.2.0-rc5. > > The kernel starts booting normally and reaches SMP initialization, but > then begins emitting continuous warnings from > __replay_soft_interrupts().The warnings continue indefinitely and the > system never completes boot. > Can you try bisecting it? > > Call Trace: > > > [ 2513.069347] WARNING: arch/powerpc/kernel/irq_64.c:75 at > __replay_soft_interrupts+0x14c/0x220, CPU#0: swapper/0/0 > [ 2513.069354] Modules linked in: bonding tls nft_fib_inet nft_fib_ipv4 > nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 > nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 > nf_defrag_ipv4 nf_tables rfkill sg pseries_rng vmx_crypto fuse loop > vsock_loopback vmw_vsock_virtio_transport_common vsock xfs sd_mod > ibmvscsi ibmveth scsi_transport_srp dm_mirror dm_region_hash dm_log dm_mod > [ 2513.069380] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G     W >    7.2.0-rc5 #2 PREEMPTLAZY > [ 2513.069385] Tainted: [W]=WARN > [ 2513.069386] Hardware name: IBM,9080-HEX Power11 (architected) > 0x820200 0xf000007 of:IBM,FW1110.01 (NH1110_069) hv:phyp pSeries > [ 2513.069390] NIP:  c00000000003b2dc LR: c00000000003b2b8 CTR: > c000000000190af0 > [ 2513.069393] REGS: c000000002d074d0 TRAP: 0700   Tainted: G   W > (7.2.0-rc5) > [ 2513.069397] MSR:  8000000000021033 CR: 84002288 > XER: 00000001 > [ 2513.069404] CFAR: c0000000000189cc IRQMASK: 1 > [ 2513.069404] GPR00: c00000000003b2b8 c000000002d07790 c000000001938100 > c000000002d077b8 > [ 2513.069404] GPR04: 0000000000000001 0000000000000001 0000000000000004 > 0000000ef44c0000 > [ 2513.069404] GPR08: 0000000000000001 0000000000000041 0000000000000001 > 0000000000002000 > [ 2513.069404] GPR12: c000000000190af0 c000000003030000 0000000000000000 > 0000000000000000 > [ 2513.069404] GPR16: 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 > [ 2513.069404] GPR20: 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 > [ 2513.069404] GPR24: 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 > [ 2513.069404] GPR28: 0000000000000000 fcffffffffffffff 0000000000000000 > c000000002d079f0 > [ 2513.069440] NIP [c00000000003b2dc] __replay_soft_interrupts+0x14c/0x220 > [ 2513.069445] LR [c00000000003b2b8] __replay_soft_interrupts+0x128/0x220 > [ 2513.069449] Call Trace: > [ 2513.069451] [c000000002d07790] [c00000000003b2b8] > __replay_soft_interrupts+0x128/0x220 (unreliable) > [ 2513.069456] [c000000002d07960] [c00000000003b6e4] > replay_soft_interrupts+0x24/0x40 > [ 2513.069462] [c000000002d07980] [c0000000000338f0] > interrupt_exit_kernel_prepare+0x250/0x280 > [ 2513.069467] [c000000002d079c0] [c00000000000da68] > interrupt_return_srr_kernel+0x8/0x18c > [ 2513.069472] ---- interrupt: 900 at plpar_hcall_norets_notrace+0x18/0x2c > [ 2513.069477] NIP:  c0000000001bdb68 LR: c000000001318c98 CTR: > 0000000000000000 > [ 2513.069480] REGS: c000000002d079f0 TRAP: 0900   Tainted: G   W > (7.2.0-rc5) > [ 2513.069483] MSR:  800000000280b033 > CR: 24000282  XER: 00000001 > [ 2513.069492] CFAR: 0000000000000000 IRQMASK: 0 > [ 2513.069492] GPR00: 0000000000000000 c000000002d07cb0 c000000001938100 > 0000000000000000 > [ 2513.069492] GPR04: 0000000000000000 8004000038667c10 0000000000000000 > 0000000000000001 > [ 2513.069492] GPR08: 0000000000000000 0000000000000000 0000000000000090 > 0000000000000001 > [ 2513.069492] GPR12: 8004000038667c00 c000000003030000 0000000000000000 > 0000000000000000 > [ 2513.069492] GPR16: 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 > [ 2513.069492] GPR20: 0000000000c00000 0000000000000008 0000000000000000 > 0000000000000000 > [ 2513.069492] GPR24: 0000000000000000 0000000000000000 000002491e026596 > 0000000000000000 > [ 2513.069492] GPR28: 0000000000000000 0000000000000001 c0000000022918e8 > c0000000022918f0 > [ 2513.069527] NIP [c0000000001bdb68] plpar_hcall_norets_notrace+0x18/0x2c > [ 2513.069531] LR [c000000001318c98] check_and_cede_processor+0x48/0x60 > [ 2513.069535] ---- interrupt: 900 > [ 2513.069537] [c000000002d07cb0] [c000000002d07d00] > init_stack+0x7d00/0x8000 (unreliable) > [ 2513.069543] [c000000002d07d10] [c000000001319124] > dedicated_cede_loop+0x94/0x19c > [ 2513.069547] [c000000002d07d60] [c000000001318300] > cpuidle_enter_state+0x2f0/0x738 > [ 2513.069551] [c000000002d07e00] [c000000000e6eea0] > cpuidle_enter+0x50/0x80 > [ 2513.069556] [c000000002d07e40] [c0000000002c1978] call_cpuidle+0x48/0x90 > [ 2513.069560] [c000000002d07e60] [c0000000002ca1b0] > cpuidle_idle_call+0x160/0x2e0 > [ 2513.069565] [c000000002d07eb0] [c0000000002ca434] do_idle+0x104/0x200 > [ 2513.069569] [c000000002d07ef0] [c0000000002ca7e8] > cpu_startup_entry+0x48/0x50 > [ 2513.069574] [c000000002d07f20] [c000000000011764] rest_init+0x114/0x118 > [ 2513.069578] [c000000002d07f50] [c0000000020052a8] do_initcalls+0x0/0x18c > [ 2513.069582] [c000000002d07fe0] [c00000000000ea9c] > start_here_common+0x1c/0x20 > [ 2513.069585] Code: 992d0933 f9010168 4bfdd665 60000000 892d0933 > 7d2a48f8 554a07fe 0b0a0000 890d0932 39400001 2c280003 7d40509e > <0b0a0000> 712a0002 41820044 552907fa > [ 2513.069598] ---[ end trace 0000000000000000 ]--- > [ 2513.099343] ------------[ cut here ]------------ > > This I am seeing this issue with attached .config. > > I don't see GENERIC_ENTRY in your config. So it maybe a older bug seen with CONFIG_PPC_IRQ_SOFT_MASK_DEBUG.