linux-kernel - [BUG] perf failed on multi-cpus system with multi-events specified

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 2 Mar 2011 11:58:21 +0800
From:	Han Pingtian <phan@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [BUG] perf failed on multi-cpus system with multi-events specified

Hi,

On a Nehalem-EX system, which has 24 CPUs, perf commands with
multi-events specified fail:

[root@...el-s3e36-01 perf]# ./perf record -e syscalls:sys_enter_sched_get_priority_min  -e kmem:mm_kernel_pagefault  -e workqueue:workqueue_execution  -e writeback:writeback_pages_written  -e kmem:mm_kernel_pagefault  -e writeback:writeback_bdi_unregister  -e syscalls:sys_exit_capset  -e syscalls:sys_enter_sched_get_priority_min  -e writeback:writeback_exec  -e syscalls:sys_enter_vmsplice  -e syscalls:sys_exit_mprotect  -e block:block_rq_complete  -e syscalls:sys_enter_readlinkat  -e signal:signal_overflow_fail  -e syscalls:sys_exit_sendfile64  -e block:block_bio_backmerge  -e syscalls:sys_exit_unlink  -e syscalls:sys_exit_keyctl  -e jbd2:jbd2_submit_inode_data  -e syscalls:sys_enter_tgkill  -e syscalls:sys_exit_lremovexattr  -e syscalls:sys_exit_munmap  -e syscalls:sys_enter_mmap  -e syscalls:sys_exit_sched_getparam  -e syscalls:sys_exit_getpgid  -e syscalls:sys_exit_clock_getres  -e block:block_split  -e ext4:ext4_mballoc_discard  -e task-clock  -e syscalls:sys_enter_sendfile64  -e syscalls:sys_enter_ptrace  -e syscalls:sys_enter_nanosleep  -e syscalls:sys_exit_setdomainname  -e writeback:writeback_nowork  -e syscalls:sys_exit_mbind  -e ext4:ext4_da_write_begin  -e syscalls:sys_enter_recvfrom  -e syscalls:sys_enter_write  -e syscalls:sys_exit_getresgid  -e syscalls:sys_exit_fsync  -e syscalls:sys_enter_rt_sigprocmask  -e syscalls:sys_enter_getdents  -e syscalls:sys_exit_semtimedop -f ls

  Error: sys_perf_event_open() syscall returned with -1 (Too many open files).  /bin/dmesg may provide additional information.

  Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?

trace-cmd: Too many open files
  No memory to alloc tracepoints list
[root@...el-s3e36-01 perf]# ./perf --version
perf version 2.6.38.rc6.166.g493f33
[root@...el-s3e36-01 perf]#

On another latop which has only two CPUs, there is no this problem.
-- 
Han Pingtian
Quality Engineer
hpt @ #kernel-qe
Red Hat, Inc
Freedom ... courage ... Commitment ... ACCOUNTABILITY
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/