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Message-ID: <866d7f30-7cde-4c88-87ba-bdad16075433@linux.ibm.com>
Date: Tue, 2 Sep 2025 10:25:54 +0530
From: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
To: LKML <linux-kernel@...r.kernel.org>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Madhavan Srinivasan <maddy@...ux.ibm.com>, vbabka@...e.cz,
Thorsten Leemhuis <linux@...mhuis.info>
Subject: [linux-next20250901] Boot fail on IBM Power Server
Greetings!!!
IBM CI has reported a boot failure with next-20250901 repo on IBM Power
Server.
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
gcc version 11.5.0 20240719
GNU ld version 2.35.2-54.el9
Attached is the .config file.
Traces:
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=32, Nodes=32
[ 0.000000] BUG: Kernel NULL pointer dereference on read at 0x00000040
[ 0.000000] Faulting instruction address: 0xc00000000059eaac
[ 0.000000] Oops: Kernel access of bad area, sig: 7 [#1]
[ 0.000000] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted
6.17.0-rc4-next-20250901 #1 VOLUNTARY
[ 0.000000] Hardware name: IBM,9080-HEX Power11 (architected)
0x820200 0xf000007 of:IBM,FW1110.01 (NH1110_069) hv:phyp pSeries
[ 0.000000] NIP: c00000000059eaac LR: c00000000059eadc CTR:
0000000000000000
[ 0.000000] REGS: c000000002c7faf0 TRAP: 0300 Not tainted
(6.17.0-rc4-next-20250901)
[ 0.000000] MSR: 8000000002001033 <SF,VEC,ME,IR,DR,RI,LE> CR:
44008220 XER: 20040001
[ 0.000000] CFAR: c00000000059eaf8 DAR: 0000000000000040 DSISR:
00080000 IRQMASK: 3
[ 0.000000] GPR00: c00000000059eab8 c000000002c7fd90 c000000001678100
c000000004017400
[ 0.000000] GPR04: 0000000000000cc0 0000000000000001 0000000000000000
c000000002cea768
[ 0.000000] GPR08: 0000000000000008 0000000000000000 0000000000000000
0000000000008000
[ 0.000000] GPR12: c00000000058f8d0 c000000002ff0000 0000000000000000
0000000000000000
[ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 0.000000] GPR20: 0000000000c00000 0000000000000008 0000000000000000
c000000002f46870
[ 0.000000] GPR24: 0000000000000100 c000000002f468c8 c000000002f425c0
c000000004017400
[ 0.000000] GPR28: c000000001591188 c000000002cfca00 0000000000000001
c0000013fd27ebe0
[ 0.000000] NIP [c00000000059eaac] do_kmem_cache_create+0x4d4/0x634
[ 0.000000] LR [c00000000059eadc] do_kmem_cache_create+0x504/0x634
[ 0.000000] Call Trace:
[ 0.000000] [c000000002c7fd90] [c00000000059eab8]
do_kmem_cache_create+0x4e0/0x634 (unreliable)
[ 0.000000] [c000000002c7fe40] [c00000000050e518]
__kmem_cache_create_args+0x198/0x434
[ 0.000000] [c000000002c7fef0] [c0000000020b3630]
maple_tree_init+0x60/0x98
[ 0.000000] [c000000002c7ff40] [c000000002006420]
start_kernel+0x288/0x60c
[ 0.000000] [c000000002c7ffe0] [c00000000000ea9c]
start_here_common+0x1c/0x20
[ 0.000000] Code: 4e800020 3d220167 38e92668 3d2200c0 39490a84
e93b0008 7fe7402a 7d5f52aa 7fe9fa14 392a001c 79291f24 7d3b482a
<e9290040> f93f0020 4bff15e5 38be0001
[ 0.000000] ---[ end trace 0000000000000000 ]---
[ 0.000000]
[ 0.000000] Kernel panic - not syncing: Fatal exception
[ 0.000000] Rebooting in 10 seconds..
If you happen to fix this please add below tag.
Reported-by: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
Regards,
Venkat.
View attachment "config_p10_lp6" of type "text/plain" (179570 bytes)
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