From: Vince Weaver <vincent.weaver@maine.edu>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: perf: perf_fuzzer quickly locks up on 4.15-rc7
Date: Fri, 12 Jan 2018 14:48:56 -0500 (EST) [thread overview]
Message-ID: <alpine.DEB.2.21.1801121446290.28175@macbook-air> (raw)
In-Reply-To: <20180111205700.GG3397@worktop>
On Thu, 11 Jan 2018, Peter Zijlstra wrote:
> It makes my IVB very ill, starts spewing RCU stall warnings, but is
> otherwise very unresponsive.
>
> Awesome... I'll prod at it when my brain works again.
>
Not sure if it's related, but I hit this on the core2 machine fuzzing
overnight with "pti=off"
Jan 11 19:03:03 core2 kernel: [12816.125397] WARNING: CPU: 0 PID: 3144 at kernel/events/core.c:5097 perf_mmap_close+0x129/0x216
Jan 11 19:03:03 core2 kernel: [12816.126204] WARNING: CPU: 1 PID: 3197 at kernel/events/ring_buffer.c:569 __rb_free_aux+0x1a/0xb6
Jan 11 19:03:03 core2 kernel: [12816.126219] CPU: 1 PID: 3197 Comm: perf_fuzzer Not tainted 4.15.0-rc7+ #211
Jan 11 19:03:03 core2 kernel: [12816.126220] Hardware name: AOpen DE7000/nMCP7ALPx-DE R1.06 Oct.19.2012, BIOS 080015 10/19/2012
Jan 11 19:03:03 core2 kernel: [12816.126222] RIP: 0010:__rb_free_aux+0x1a/0xb6
Jan 11 19:03:03 core2 kernel: [12816.126223] RSP: 0000:ffffc90007417c08 EFLAGS: 00010006
Jan 11 19:03:03 core2 kernel: [12816.126224] RAX: 0000000080110000 RBX: ffff8801197aee00 RCX: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126225] RDX: 0000000000040400 RSI: 00000000000400f6 RDI: ffff8801197aee00
Jan 11 19:03:03 core2 kernel: [12816.126225] RBP: ffff88011fc91000 R08: 0000000000000020 R09: 0000000000000030
Jan 11 19:03:03 core2 kernel: [12816.126226] R10: ffffc90007417c28 R11: 0000000000000246 R12: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126227] R13: 0000000000000001 R14: ffff88011901a800 R15: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126228] FS: 00007f1957682700(0000) GS:ffff88011fc80000(0000) knlGS:0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 11 19:03:03 core2 kernel: [12816.126230] CR2: 00000000026be684 CR3: 000000011a79a000 CR4: 00000000000407e0
Jan 11 19:03:03 core2 kernel: [12816.126231] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126231] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Jan 11 19:03:03 core2 kernel: [12816.126232] Call Trace:
Jan 11 19:03:03 core2 kernel: [12816.126236] perf_aux_output_end+0xf4/0x100
Jan 11 19:03:03 core2 kernel: [12816.126239] intel_bts_interrupt+0x9e/0xf5
Jan 11 19:03:03 core2 kernel: [12816.126241] intel_pmu_handle_irq+0x72/0x3dd
Jan 11 19:03:03 core2 kernel: [12816.126245] ? flush_tlb_mm_range+0xb0/0xca
Jan 11 19:03:03 core2 kernel: [12816.126248] ? radix_tree_next_chunk+0x73/0x26b
Jan 11 19:03:03 core2 kernel: [12816.126249] ? get_page+0x5/0xa
Jan 11 19:03:03 core2 kernel: [12816.126251] ? mm_counter_file+0x5/0x14
Jan 11 19:03:03 core2 kernel: [12816.126254] ? alloc_set_pte+0x1b9/0x1cf
Jan 11 19:03:03 core2 kernel: [12816.126255] ? unlock_page+0xa/0x20
Jan 11 19:03:03 core2 kernel: [12816.126256] ? filemap_map_pages+0x182/0x1f4
Jan 11 19:03:03 core2 kernel: [12816.126258] ? reuse_swap_page+0x7a/0x115
Jan 11 19:03:03 core2 kernel: [12816.126259] ? wp_page_reuse+0x31/0x3a
Jan 11 19:03:03 core2 kernel: [12816.126260] ? do_wp_page+0x16d/0x242
Jan 11 19:03:03 core2 kernel: [12816.126262] ? __handle_mm_fault+0x67c/0x6f1
Jan 11 19:03:03 core2 kernel: [12816.126264] ? perf_event_nmi_handler+0x27/0x3e
Jan 11 19:03:03 core2 kernel: [12816.126266] ? perf_event_nmi_handler+0x1b/0x3e
Jan 11 19:03:03 core2 kernel: [12816.126267] perf_event_nmi_handler+0x27/0x3e
Jan 11 19:03:03 core2 kernel: [12816.126269] nmi_handle+0x52/0xf5
Jan 11 19:03:03 core2 kernel: [12816.126271] default_do_nmi+0x41/0xda
Jan 11 19:03:03 core2 kernel: [12816.126273] do_nmi+0x92/0x102
Jan 11 19:03:03 core2 kernel: [12816.126275] nmi+0x67/0xb0
Jan 11 19:03:03 core2 kernel: [12816.126277] RIP: 0033:0x40fa77
Jan 11 19:03:03 core2 kernel: [12816.126277] RSP: 002b:00007fff93ea1d48 EFLAGS: 00000202
Jan 11 19:03:03 core2 kernel: [12816.126278] RAX: 0000000000000000 RBX: 000000000000000c RCX: 000000000007887c
Jan 11 19:03:03 core2 kernel: [12816.126279] RDX: 0000000000000000 RSI: 00007f1957470620 RDI: 00007f19574714e0
Jan 11 19:03:03 core2 kernel: [12816.126280] RBP: 00007fff93ea1d60 R08: 0000000000000000 R09: 00007f1957682700
Jan 11 19:03:03 core2 kernel: [12816.126281] R10: 00007f19576829d0 R11: 0000000000000246 R12: 0000000000401950
Jan 11 19:03:03 core2 kernel: [12816.126281] R13: 00007fff93ea4150 R14: 0000000000000000 R15: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.126282] Code: 38 48 01 c7 48 c7 47 08 00 00 00 00 e9 4c 98 00 00 66 66 66 66 90 65 8b 05 57 59 f1 7e a9 ff ff ff 7f 41 54 55 53 48 89 fb 74 02 <0f> ff 48 8b bb e0 00 00 00 48 85 ff 74 1c ff 93 c8 00 00 00 48
Jan 11 19:03:03 core2 kernel: [12816.126299] ---[ end trace d8df98463050a325 ]---
Jan 11 19:03:03 core2 kernel: [12816.445380] CPU: 0 PID: 3144 Comm: perf_fuzzer Tainted: G W 4.15.0-rc7+ #211
Jan 11 19:03:03 core2 kernel: [12816.453689] Hardware name: AOpen DE7000/nMCP7ALPx-DE R1.06 Oct.19.2012, BIOS 080015 10/19/2012
Jan 11 19:03:03 core2 kernel: [12816.462611] RIP: 0010:perf_mmap_close+0x129/0x216
Jan 11 19:03:03 core2 kernel: [12816.467360] RSP: 0018:ffffc9000729fe58 EFLAGS: 00010202
Jan 11 19:03:03 core2 kernel: [12816.472630] RAX: 0000000000000001 RBX: ffff8801197aee00 RCX: 0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.479808] RDX: 0000000000000000 RSI: 00000000000008fb RDI: ffff8801197aee00
Jan 11 19:03:03 core2 kernel: [12816.486984] RBP: ffff88011a5b1000 R08: 0000000000000001 R09: ffff880118c94d80
Jan 11 19:03:03 core2 kernel: [12816.494160] R10: ffffc9000729fe30 R11: ffff880118c94d80 R12: ffff88011914b300
Jan 11 19:03:03 core2 kernel: [12816.501336] R13: ffff88011a133a28 R14: ffff88011a5b1270 R15: ffff8801197aebc8
Jan 11 19:03:03 core2 kernel: [12816.508512] FS: 00007f1957682700(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
Jan 11 19:03:03 core2 kernel: [12816.516652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 11 19:03:03 core2 kernel: [12816.522441] CR2: 0000000000837f80 CR3: 0000000118caa000 CR4: 00000000000407f0
Jan 11 19:03:03 core2 kernel: [12816.529618] DR0: 0000000000000000 DR1: 0000000000000040 DR2: 0000000000000040
Jan 11 19:03:03 core2 kernel: [12816.536796] DR3: 0000000000000040 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Jan 11 19:03:03 core2 kernel: [12816.543971] Call Trace:
Jan 11 19:03:03 core2 kernel: [12816.546467] remove_vma+0x2d/0x5f
Jan 11 19:03:03 core2 kernel: [12816.549828] do_munmap+0x2d7/0x2fb
Jan 11 19:03:03 core2 kernel: [12816.553277] vm_munmap+0x54/0x7a
Jan 11 19:03:03 core2 kernel: [12816.556553] SyS_munmap+0x1f/0x24
Jan 11 19:03:03 core2 kernel: [12816.559917] entry_SYSCALL_64_fastpath+0x17/0x70
Jan 11 19:03:03 core2 kernel: [12816.564580] RIP: 0033:0x7f19571af757
Jan 11 19:03:03 core2 kernel: [12816.568200] RSP: 002b:00007fff93ea1ce8 EFLAGS: 00000206
Jan 11 19:03:03 core2 kernel: [12816.568201] Code: 00 f0 49 29 44 24 60 49 8b 45 40 48 8b 93 c0 00 00 00 48 89 df 48 29 90 c8 00 00 00 e8 f0 43 00 00 8b 83 d0 00 00 00 85 c0 74 02 <0f> ff 4c 89 f7 e8 47 68 4b 00 f0 ff 4b 78 48 8d bd 90 02 00 00
Jan 11 19:03:03 core2 kernel: [12816.592397] ---[ end trace d8df98463050a326 ]---
next prev parent reply other threads:[~2018-01-12 19:49 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 16:12 Vince Weaver
2018-01-08 17:30 ` Ingo Molnar
2018-01-08 20:29 ` Vince Weaver
2018-01-09 10:25 ` Peter Zijlstra
2018-01-09 13:26 ` Peter Zijlstra
2018-01-09 13:36 ` Peter Zijlstra
2018-01-09 13:44 ` Vince Weaver
2018-01-09 15:12 ` Peter Zijlstra
2018-01-09 15:24 ` Vince Weaver
2018-01-09 15:33 ` Peter Zijlstra
2018-01-09 15:56 ` Vince Weaver
2018-01-09 16:05 ` Peter Zijlstra
2018-01-09 17:07 ` Josh Poimboeuf
2018-01-11 5:25 ` Josh Poimboeuf
2018-01-11 19:00 ` Vince Weaver
2018-01-11 19:21 ` Josh Poimboeuf
2018-01-11 19:50 ` Peter Zijlstra
2018-01-11 19:57 ` Vince Weaver
2018-01-11 20:43 ` Vince Weaver
2018-05-01 13:29 ` perf: fuzzer causes stack going in wrong direction warnings Vince Weaver
2018-05-01 13:58 ` Josh Poimboeuf
2018-05-01 19:59 ` Vince Weaver
2018-05-01 22:04 ` Josh Poimboeuf
2018-05-02 20:50 ` Josh Poimboeuf
2018-05-04 14:35 ` Vince Weaver
2018-05-04 16:25 ` Josh Poimboeuf
2018-05-04 17:00 ` Vince Weaver
2018-05-05 15:38 ` Vince Weaver
2018-05-05 18:29 ` Josh Poimboeuf
2018-05-06 23:49 ` Josh Poimboeuf
2018-05-10 13:48 ` Peter Zijlstra
2018-05-10 14:27 ` Josh Poimboeuf
2018-05-10 23:16 ` Josh Poimboeuf
2018-01-09 16:16 ` perf: perf_fuzzer quickly locks up on 4.15-rc7 Ingo Molnar
2018-01-09 16:20 ` Peter Zijlstra
2018-01-09 17:18 ` Vince Weaver
2018-01-10 15:28 ` Vince Weaver
2018-01-09 16:14 ` Peter Zijlstra
2018-01-09 17:53 ` Steven Rostedt
2018-01-09 18:02 ` Peter Zijlstra
2018-01-09 18:09 ` Steven Rostedt
2018-01-09 19:53 ` Peter Zijlstra
2018-01-11 9:13 ` Peter Zijlstra
2018-01-11 15:26 ` Vince Weaver
2018-01-11 15:38 ` Peter Zijlstra
2018-01-11 16:41 ` Vince Weaver
2018-01-11 16:58 ` Vince Weaver
2018-01-11 17:03 ` Peter Zijlstra
2018-01-11 18:04 ` Vince Weaver
2018-01-11 18:20 ` Vince Weaver
2018-01-11 19:01 ` Peter Zijlstra
2018-01-11 19:11 ` Peter Zijlstra
2018-01-11 20:15 ` Vince Weaver
2018-01-11 20:40 ` Vince Weaver
2018-01-11 20:57 ` Peter Zijlstra
2018-01-12 19:48 ` Vince Weaver [this message]
2018-01-11 20:42 ` Peter Zijlstra
2018-01-11 15:29 ` Peter Zijlstra
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