Greetings!!! IBM CI has reported kernel boot warnings on the mainline kernel on IBM Power11 system. Attached is the .config file. Traces: [    0.040098] plpks: POWER LPAR Platform KeyStore is not supported or enabled [    0.043041] ------------[ cut here ]------------ [    0.043045] WARNING: CPU: 0 PID: 1 at arch/powerpc/mm/mem.c:341 add_system_ram_resources+0xfc/0x180 [    0.043058] Modules linked in: [    0.043065] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-auto-12607-g5472d60c129f #1 VOLUNTARY [    0.043072] Hardware name: IBM,9080-HEX Power11 (architected) 0x820200 0xf000007 of:IBM,FW1110.01 (NH1110_069) hv:phyp pSeries [    0.043078] NIP:  c00000000201de3c LR: c00000000201de34 CTR: 0000000000000000 [    0.043082] REGS: c000000127cef8a0 TRAP: 0700   Not tainted (6.17.0-auto-12607-g5472d60c129f) [    0.043088] MSR:  8000000002029033   CR: 84000840  XER: 20040010 [    0.043099] CFAR: c00000000017eed0 IRQMASK: 0 [    0.043099] GPR00: c00000000201de34 c000000127cefb40 c0000000016a8100 0000000000000001 [    0.043099] GPR04: c00000012005aa00 0000000020000000 c000000002b705c8 0000000000000000 [    0.043099] GPR08: 000000007fffffff fffffffffffffff0 c000000002db8100 000000011fffffff [    0.043099] GPR12: c00000000201dd40 c000000002ff0000 c0000000000112bc 0000000000000000 [    0.043099] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [    0.043099] GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000015a3808 [    0.043099] GPR24: c00000000200468c c000000001699888 0000000000000106 c0000000020d1950 [    0.043099] GPR28: c0000000014683f8 0000000081000200 c0000000015c1868 c000000002b9f710 [    0.043138] NIP [c00000000201de3c] add_system_ram_resources+0xfc/0x180 [    0.043143] LR [c00000000201de34] add_system_ram_resources+0xf4/0x180 [    0.043148] Call Trace: [    0.043150] [c000000127cefb40] [c00000000201de34] add_system_ram_resources+0xf4/0x180 (unreliable) [    0.043157] [c000000127cefba0] [c000000000010eb4] do_one_initcall+0x60/0x36c [    0.043162] [c000000127cefc80] [c0000000020068cc] do_initcalls+0x120/0x220 [    0.043169] [c000000127cefd30] [c000000002006cbc] kernel_init_freeable+0x23c/0x390 [    0.043174] [c000000127cefde0] [c0000000000112e8] kernel_init+0x34/0x26c [    0.043178] [c000000127cefe50] [c00000000000df7c] ret_from_kernel_user_thread+0x14/0x1c [    0.043181] ---- interrupt: 0 at 0x0 [    0.043186] Code: 3d02010c e9210028 e9410020 fb840010 fba40018 38685b48 3929ffff f9440000 f9240008 4a161035 60000000 54630ffe <0b030000> 39210028 39400000 39010020 [    0.043197] ---[ end trace 0000000000000000 ]--- [    0.043202] ------------[ cut here ]------------ [    0.043203] WARNING: CPU: 0 PID: 1 at arch/powerpc/mm/mem.c:341 add_system_ram_resources+0xfc/0x180 [    0.043209] Modules linked in: [    0.043212] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G     W           6.17.0-auto-12607-g5472d60c129f #1 VOLUNTARY [    0.043217] Tainted: [W]=WARN [    0.043219] Hardware name: IBM,9080-HEX Power11 (architected) 0x820200 0xf000007 of:IBM,FW1110.01 (NH1110_069) hv:phyp pSeries [    0.043223] NIP:  c00000000201de3c LR: c00000000201de34 CTR: 0000000000000000 [    0.043226] REGS: c000000127cef8a0 TRAP: 0700   Tainted: G   W            (6.17.0-auto-12607-g5472d60c129f) [    0.043229] MSR:  8000000002029033   CR: 84000440  XER: 20040010 [    0.043237] CFAR: c00000000017eed0 IRQMASK: 0 [    0.043237] GPR00: c00000000201de34 c000000127cefb40 c0000000016a8100 0000000000000001 [    0.043237] GPR04: c00000012005a9c0 0000000020000000 c000000002b705c8 0000000080000000 [    0.043237] GPR08: 000000257fffffff fffffffffffffff0 c000000002db8100 000000011fffffff [    0.043237] GPR12: c00000000201dd40 c000000002ff0000 c0000000000112bc 0000000000000000 [    0.043237] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [    0.043237] GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000015a3808 [    0.043237] GPR24: c00000000200468c c000000001699888 0000000000000106 c0000000020d1950 [    0.043237] GPR28: c0000000014683f8 0000000081000200 c0000000015c1868 c000000002b9f710 [    0.043271] NIP [c00000000201de3c] add_system_ram_resources+0xfc/0x180 [    0.043276] LR [c00000000201de34] add_system_ram_resources+0xf4/0x180 [    0.043280] Call Trace: [    0.043281] [c000000127cefb40] [c00000000201de34] add_system_ram_resources+0xf4/0x180 (unreliable) [    0.043287] [c000000127cefba0] [c000000000010eb4] do_one_initcall+0x60/0x36c [    0.043291] [c000000127cefc80] [c0000000020068cc] do_initcalls+0x120/0x220 [    0.043296] [c000000127cefd30] [c000000002006cbc] kernel_init_freeable+0x23c/0x390 [    0.043301] [c000000127cefde0] [c0000000000112e8] kernel_init+0x34/0x26c [    0.043305] [c000000127cefe50] [c00000000000df7c] ret_from_kernel_user_thread+0x14/0x1c [    0.043308] ---- interrupt: 0 at 0x0 [    0.043311] Code: 3d02010c e9210028 e9410020 fb840010 fba40018 38685b48 3929ffff f9440000 f9240008 4a161035 60000000 54630ffe <0b030000> 39210028 39400000 39010020 [    0.043322] ---[ end trace 0000000000000000 ]--- [    0.043520] kprobes: kprobe jump-optimization is enabled. Al If yo happen to fix this issue, please add below tag. Reported-by: Venkat Rao Bagalkote Regards, Venkat.