linux-kernel - [perf] BUG: unable to handle kernel NULL pointer dereference at 00000000000000eb

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Date:	Mon, 26 May 2014 11:12:42 +0800
From:	Jet Chen <jet.chen@...el.com>
To:	Jiri Olsa <jolsa@...nel.org>
CC:	Fengguang Wu <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Jet Chen <jet.chen@...el.com>
Subject: [perf] BUG: unable to handle kernel NULL pointer dereference at 00000000000000eb

Hi Jiri,

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/fd_master_1
commit 93b6a1f2384ec43677bc555a7d5508710f1068d5 ("perf: Add fd_master interface")


test case: lkp-ws02/hackbench/1600%-process-pipe

8210dbfcf40bb8a  93b6a1f2384ec43677bc555a7
---------------  -------------------------
         0           +Inf%          1 ~ 0%  TOTAL dmesg.BUG:unable_to_handle_kernel_NULL_pointer_dereference
         0           +Inf%          1 ~ 0%  TOTAL dmesg.Oops
         0           +Inf%          1 ~ 0%  TOTAL dmesg.RIP:SYSC_perf_event_open
         0           +Inf%          1 ~ 0%  TOTAL dmesg.Kernel_panic-not_syncing:Fatal_exception

Legend:
	~XX%    - stddev percent
	[+-]XX% - change percent


[  165.001824] BUG: unable to handle kernel NULL pointer dereference at 00000000000000eb
[  165.009126] IP: [<ffffffff811404d3>] SYSC_perf_event_open+0x313/0xc00
[  165.015062] PGD 3cbb7f067 PUD 3a215e067 PMD 0
[  165.018631] Oops: 0000 [#1] SMP
[  165.024064] Modules linked in: dm_mod fuse btrfs raid6_pq xor ses enclosure sg sd_mod crct10dif_generic crct10dif_pclmul sr_mod crc_t10dif ata_generic cdrom crct10dif_common pata_acpi snd_pcm snd_timer snd mptsas ahci soundcore mptscsih pata_jmicron libahci pcspkr serio_raw ipmi_si mptbase libata i2c_i801 i7core_edac parport_pc scsi_transport_sas ipmi_msghandler parport edac_core shpchp acpi_cpufreq
[  165.058119] CPU: 22 PID: 1110 Comm: perf_3.14 Not tainted 3.15.0-rc5-wl-02776-geec4f9d #1
[  165.067936] Hardware name: Supermicro X8DTN/X8DTN, BIOS 4.6.3 01/06/2010
[  165.078069] task: ffff88007fd63b00 ti: ffff8801d96f8000 task.ti: ffff8801d96f8000
[  165.084172] RIP: 0010:[<ffffffff811404d3>]  [<ffffffff811404d3>] SYSC_perf_event_open+0x313/0xc00
[  165.084172] RSP: 0018:ffff8801d96f9ea0  EFLAGS: 00010246
[  165.096386] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  165.096386] RDX: 00000000000000a7 RSI: 00000000013d07a0 RDI: ffff8801d96f9f40
[  165.096386] RBP: ffff8801d96f9f68 R08: 0000000000000000 R09: 0000000000000000
[  165.122926] R10: 00000000ffffffff R11: 0000000000000202 R12: 0000000000000000
[  165.129153] R13: 0000000000000002 R14: 00000000013e50e0 R15: 0000000000000000
[  165.137074] FS:  00007f7a8741b740(0000) GS:ffff88043fd40000(0000) knlGS:0000000000000000
[  165.137074] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  165.137074] CR2: 00000000000000eb CR3: 00000003fa5f4000 CR4: 00000000000007e0
[  165.157185] Stack:
[  165.157185]  ffff8801d96f9ee8 ffffffff811bc023 0000000000000000 0000000000000000
[  165.164467]  0000000000000000 ffffffff00000000 ffff8800ffffffff ffff880000000000
[  165.175111]  0000006000000000 0000000000000000 0000000000000320 00000000000001a7
[  165.175111] Call Trace:
[  165.175111]  [<ffffffff811bc023>] ? __fput+0x1a3/0x230
[  165.192139]  [<ffffffff81141179>] SyS_perf_event_open+0x9/0x10
[  165.192139]  [<ffffffff81760069>] system_call_fastpath+0x16/0x1b
[  165.202110] Code: 48 c7 c0 ea ff ff ff eb 85 0f 1f 80 00 00 00 00 c7 85 70 ff ff ff 00 00 00 00 45 31 e4 48 c7 85 48 ff ff ff 00 00 00 00 45 31 ff <41> f6 87 eb 00 00 00 01 0f 84 67 02 00 00 f6 45 a3 01 74 39 48
[  165.225103] RIP  [<ffffffff811404d3>] SYSC_perf_event_open+0x313/0xc00
[  165.229113]  RSP <ffff8801d96f9ea0>
[  165.229113] CR2: 00000000000000eb
[  165.242082] ---[ end trace e56e4b305beca08e ]---
[  165.246822] Kernel panic - not syncing: Fatal exception

Append full dmesg file and kconfig as attachments

Thanks,
Jet


View attachment "reproduce" of type "text/plain" (1971 bytes)

View attachment ".dmesg" of type "text/plain" (136958 bytes)

View attachment "x86_64-rhel" of type "text/plain" (124027 bytes)