From mboxrd@z Thu Jan 1 00:00:00 1970 From: amit@amit-agarwal.co.in (Amit Agarwal) Date: Fri, 11 Jul 2014 17:32:46 +0530 Subject: Memory allocation problems on RHEL 6.3 kernel version 2.6.32-279.el6.x86_64 In-Reply-To: <3E3FE58C-3B70-4493-AAE9-9D37E74C7DFE@gmail.com> References: <53BE2DC4.6060400@surriel.com> <6fa2f96a.1c135.1471f1860b5.Coremail.shhuiw@163.com> <53BF6DA6.2000207@amit-agarwal.co.in> <4e103f42.7d5f.14723f207dd.Coremail.shhuiw@163.com> <53BF7A46.7020807@amit-agarwal.co.in> <3E3FE58C-3B70-4493-AAE9-9D37E74C7DFE@gmail.com> Message-ID: <53BFD266.7060804@amit-agarwal.co.in> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hi Dave, On 11-07-2014 12:29, Dave Tian wrote: > Compare the .config and ?sysctl -a? of the two running system may give a hint from the kernel configuration and running parameters. ?sysctl -a? may be much more useful in this case, I guess. > I compared the config files and they are verbatim same. For sysctl, there are some differences which I felt should not matter in this case. However I am attaching the diff, in case I missed something. -- Thanks, -aka http://blog.amit-agarwal.co.in -------------- next part -------------- Left file: System having issue Right file: Working system 21 kernel.core_pattern = core.%p <> 20 kernel.core_pattern = |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e 22 kernel.core_pipe_limit = 0 21 kernel.core_pipe_limit = 4 37 kernel.threads-max = 254259 <> 36 kernel.threads-max = 192117 39 kernel.random.entropy_avail = 129 <> 38 kernel.random.entropy_avail = 3468 48 kernel.pid_max = 65536 <> 47 kernel.pid_max = 32768 83 kernel.slow-work.max-threads = 64 <> 82 kernel.slow-work.max-threads = 32 381 kernel.hostname = <> 668 kernel.hostname = 388 kernel.msgmni = 256 <> 675 kernel.msgmni = 24044 389 kernel.msgmnb = 780000 676 kernel.msgmnb = 65536 391 kernel.auto_msgmni = 0 <> 678 kernel.auto_msgmni = 1 393 kernel.pty.nr = 859 <> 680 kernel.pty.nr = 13 416 vm.drop_caches = 1 <> 703 vm.drop_caches = 0 417 vm.min_free_kbytes = 128 704 vm.min_free_kbytes = 65535 434 fs.inode-nr = 285525 0 <> 721 fs.inode-nr = 13704 2128 435 fs.inode-state = 285525 0 0 0 0 0 0 722 fs.inode-state = 13704 2128 0 0 0 0 0 436 fs.file-nr = 1760 0 1606964 723 fs.file-nr = 1216 0 1214127 437 fs.file-max = 1606964 724 fs.file-max = 1214127 439 fs.dentry-state = 1498730 1490314 45 0 0 0 <> 726 fs.dentry-state = 11667 3756 45 0 0 0 445 fs.aio-nr = 896 <> 732 fs.aio-nr = 0 450 fs.epoll.max_user_watches = 3332628 <> 737 fs.epoll.max_user_watches = 2518118 451 fs.suid_dumpable = 1 738 fs.suid_dumpable = 0 467 fs.nfs.nlm_grace_period = 0 +- 468 fs.nfs.nlm_timeout = 10 469 fs.nfs.nlm_udpport = 0 470 fs.nfs.nlm_tcpport = 0 471 fs.nfs.nsm_use_hostnames = 0 472 fs.nfs.nsm_local_state = 0 549 net.netfilter.nf_conntrack_count = 23 <> 830 net.netfilter.nf_conntrack_count = 164 560 net.core.rmem_max = 16777216 <> 841 net.core.rmem_max = 131071 797 net.ipv4.tcp_mem = 1525536 2034048 3051072 <> 1036 net.ipv4.tcp_mem = 1152672 1536896 2305344 798 net.ipv4.tcp_wmem = 4096 65535 16777216 1037 net.ipv4.tcp_wmem = 4096 16384 4194304 799 net.ipv4.tcp_rmem = 4096 65535 16777216 1038 net.ipv4.tcp_rmem = 4096 87380 4194304 814 net.ipv4.tcp_dma_copybreak = 262144 <> 1053 net.ipv4.tcp_dma_copybreak = 4096 825 net.ipv4.udp_mem = 1525536 2034048 3051072 <> 1064 net.ipv4.udp_mem = 1152672 1536896 2305344