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charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: nnebtsg67j64sgdtfj4xfwkkht6rym58 X-Rspam-User: X-Rspamd-Queue-Id: 4389740018 X-Rspamd-Server: rspam03 X-HE-Tag: 1737641679-747975 X-HE-Meta: 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 N17ZwrQM 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jan 22, 2025, Srikanth Aithal wrote: > Hello all, >=20 > While running kvm selftests on AMD EPYC platform with 6.13.0-next-2025012= 1 > below general protection fault is being hit. >=20 > /Jan 22 00:45:35 kernel: Oops: general protection fault, probably for > non-canonical address 0xe659260b3c31e5e0: 0000 [#1] PREEMPT SMP NOPTI > Jan 22 00:45:35 kernel: CPU: 113 UID: 0 PID: 143333 Comm: memslot_perf_te > Not tainted 6.13.0-next-20250121-f066b5a6c7-98baed10f3f #1 > Jan 22 00:45:35 kernel: Hardware name: Dell Inc. PowerEdge R6515/07PXPY, > BIOS 2.14.1 12/17/2023 > Jan 22 00:45:35 kernel: RIP: 0010:__kmalloc_node_noprof+0xff/0x490 > Jan 22 00:45:35 kernel: Code: 0f 84 0b 01 00 00 84 c9 0f 85 03 01 00 00 4= 1 > 83 fb ff 0f 85 e9 00 00 00 41 bb ff ff ff ff 41 8b 44 24 28 49 8b 34 24 4= 8 > 01 f8 <48> 8b 18 48 89 c1 49 33 9c 24 b8 00 00 00 48 89 f8 48 0f c9 48 31 > Jan 22 00:45:35 kernel: RSP: 0018:ffffa77176403ab0 EFLAGS: 00010282 > Jan 22 00:45:35 kernel: RAX: e659260b3c31e5e0 RBX: ffffed7142251180 RCX: > 0000000000000000 > Jan 22 00:45:35 kernel: RDX: 0000000003106071 RSI: 000000000003b080 RDI: > e659260b3c31e5e0 > Jan 22 00:45:35 kernel: RBP: ffffa77176403b10 R08: 0000000000000000 R09: > ffffa771c9605000 > Jan 22 00:45:35 kernel: R10: ffffa77176403b28 R11: 00000000ffffffff R12: > ffff92a240044400 > Jan 22 00:45:35 kernel: R13: 0000000000000008 R14: 00000000ffffffff R15: > 0000000000000dc0 > Jan 22 00:45:35 kernel: FS:=C2=A0 00007f91abd0d740(0000) > GS:ffff92e13e880000(0000) knlGS:0000000000000000 > Jan 22 00:45:35 kernel: CS:=C2=A0 0010 DS: 0000 ES: 0000 CR0: 00000000800= 50033 > Jan 22 00:45:35 kernel: CR2: 000000002346c3c8 CR3: 000000223fbb6004 CR4: > 0000000000770ef0 > Jan 22 00:45:35 kernel: PKRU: 55555554 > Jan 22 00:45:35 kernel: Call Trace: > Jan 22 00:45:35 kernel: > Jan 22 00:45:35 kernel: ? show_regs+0x6d/0x80 > Jan 22 00:45:35 kernel: ? die_addr+0x3c/0xa0 > Jan 22 00:45:35 kernel: ? exc_general_protection+0x248/0x470 > Jan 22 00:45:35 kernel: ? asm_exc_general_protection+0x2b/0x30 > Jan 22 00:45:35 kernel: ? __kmalloc_node_noprof+0xff/0x490 > Jan 22 00:45:35 kernel: ? srso_alias_return_thunk+0x5/0xfbef5 > Jan 22 00:45:35 kernel: ? __get_vm_area_node+0xd2/0x140 > Jan 22 00:45:35 kernel: ? __vmalloc_node_range_noprof+0x2ec/0x7f0 > Jan 22 00:45:35 kernel: __vmalloc_node_range_noprof+0x2ec/0x7f0 > Jan 22 00:45:35 kernel: ? __vmalloc_node_range_noprof+0x2ec/0x7f0 > Jan 22 00:45:35 kernel: ? __vcalloc_noprof+0x26/0x40 > Jan 22 00:45:35 kernel: __vmalloc_noprof+0x4d/0x60 > Jan 22 00:45:35 kernel: ? __vcalloc_noprof+0x26/0x40 > Jan 22 00:45:35 kernel: __vcalloc_noprof+0x26/0x40 > Jan 22 00:45:35 kernel: kvm_arch_prepare_memory_region+0x13f/0x300 [kvm] .. > _Recreate steps:_ >=20 > 1. Build and Install next-20250121 kernel with attached kernel_config. >=20 > 2. Build and run selftests/kvm component from linux next-20250121 tree >=20 > Issue currently seem to be hit intermittently, I am trying to find more > reliable recreations steps, meantime wanted to post the issue here for > awareness/getting any pointers. I would be surprised if this has anything to do with KVM, KVM is simply doi= ng a vcalloc(), and it's not even a particularly large allocation for this test. What code does "__kmalloc_node_noprof+0xff/0x490" correspond to? Without t= hat info, you're unlikely to get any help/ideas.