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Message-ID: <1f63d96d-2666-bf7a-e981-23765f31f8f8@linux.vnet.ibm.com> Date: Thu, 31 Aug 2023 11:47:59 +0530 From: Tasmiya Nalatwad <tasmiya@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: sfr@...b.auug.org.au Subject: [linux-next][mainline/master] [IPR] OOPs kernel crash while performing IPR test Greetings, [linux-next][mainline/master] [IPR] OOPs kernel crash while performing IPR test --- Traces --- [65818.211823] Kernel attempted to read user page (380) - exploit attempt? (uid: 0) [65818.211836] BUG: Kernel NULL pointer dereference on read at 0x00000380 [65818.211840] Faulting instruction address: 0xc000000000f5f2e4 [65818.211844] Oops: Kernel access of bad area, sig: 11 [#1] [65818.211846] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries [65818.211850] Modules linked in: rpadlpar_io rpaphp nfnetlink xsk_diag bonding tls rfkill sunrpc ses enclosure scsi_transport_sas vmx_crypto pseries_rng binfmt_misc ip_tables ext4 mbcache jbd2 dm_service_time sd_mod t10_pi crc64_rocksoft crc64 sg ibmvfc scsi_transport_fc ibmveth ipr dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse [65818.211879] CPU: 16 PID: 613 Comm: kworker/16:3 Kdump: loaded Not tainted 6.5.0-rc7-next-20230824-auto #1 [65818.211883] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1030.30 (NH1030_062) hv:phyp pSeries [65818.211887] Workqueue: events sg_remove_sfp_usercontext [sg] [65818.211894] NIP: c000000000f5f2e4 LR: c000000000f5f2d8 CTR: c00000000032df70 [65818.211897] REGS: c0000000081c7a10 TRAP: 0300 Not tainted (6.5.0-rc7-next-20230824-auto) [65818.211900] MSR: 800000000280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 28000882 XER: 20040000 [65818.211909] CFAR: c000000000f5b0a4 DAR: 0000000000000380 DSISR: 40000000 IRQMASK: 0 [65818.211909] GPR00: c000000000f5f2d8 c0000000081c7cb0 c000000001451300 0000000000000000 [65818.211909] GPR04: 00000000000000c0 00000000c0000000 c000000006c5a298 98a2c506000000c0 [65818.211909] GPR08: c00000006408ab00 c0000000022a3515 0000000000000000 c008000000327d60 [65818.211909] GPR12: c00000000032df70 c000000c1bc93f00 c000000000197cc8 c000000008797500 [65818.211909] GPR16: 0000000000000000 0000000000000000 0000000000000000 c000000003071ab0 [65818.211909] GPR20: c000000003494c05 c000000c11340040 0000000000000000 c0000000b9bb4030 [65818.211909] GPR24: c0000000b9bb4000 c00000005e8627c0 0000000000000000 c000000c19b91e00 [65818.211909] GPR28: c0000000b9bb5328 c00000005e8627c0 0000000000000380 0000000000000380 [65818.211946] NIP [c000000000f5f2e4] mutex_lock+0x34/0x90 [65818.211953] LR [c000000000f5f2d8] mutex_lock+0x28/0x90 [65818.211957] Call Trace: [65818.211959] [c0000000081c7cb0] [c000000000f5f2d8] mutex_lock+0x28/0x90 (unreliable) [65818.211966] [c0000000081c7ce0] [c00000000032df9c] blk_trace_remove+0x2c/0x80 [65818.211971] [c0000000081c7d10] [c0080000003205fc] sg_device_destroy+0x44/0x110 [sg] [65818.211976] [c0000000081c7d90] [c008000000322988] sg_remove_sfp_usercontext+0x1d0/0x2c0 [sg] [65818.211981] [c0000000081c7e40] [c000000000188010] process_scheduled_works+0x230/0x4f0 [65818.211987] [c0000000081c7f10] [c00000000018b044] worker_thread+0x1e4/0x500 [65818.211992] [c0000000081c7f90] [c000000000197df8] kthread+0x138/0x140 [65818.211996] [c0000000081c7fe0] [c00000000000df98] start_kernel_thread+0x14/0x18 [65818.212000] Code: 38422050 7c0802a6 60000000 7c0802a6 fbe1fff8 7c7f1b78 f8010010 f821ffd1 4bffbd95 60000000 39400000 e90d0908 <7d20f8a8> 7c295000 40c20010 7d00f9ad [65818.212013] ---[ end trace 0000000000000000 ]--- -- Regards, Tasmiya Nalatwad IBM Linux Technology Center
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