Linux Blog » Linux servers http://www.linuxblog.org Linux server and open source blog Sun, 12 Apr 2009 06:39:28 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 Nic card bug e1000_acquire_swflag_ich8lan http://www.linuxblog.org/nic-card-bug-e1000_acquire_swflag_ich8lan/ http://www.linuxblog.org/nic-card-bug-e1000_acquire_swflag_ich8lan/#comments Sun, 01 Mar 2009 14:36:10 +0000 Linux http://www.linuxblog.org/?p=16 Getting the following bug…. bad luck :(
Running Centos, 32 bit

BUG: warning at drivers/net/e1000e/ich8lan.c:361/e1000_acquire_swflag_ich8lan() (Not tainted)
[] e1000_acquire_swflag_ich8lan+0×6e/0×86 [e1000e]
[] e1000e_read_kmrn_reg+0×10/0×4e [e1000e]
[] e1000e_gig_downshift_workaround_ich8lan+0×23/0×66 [e1000e]
[] e1000_intr_msi+0×46/0xd4 [e1000e]
[] handle_IRQ_event+0×23/0×49
[] __do_IRQ+0×84/0xd6
[] do_IRQ+0×93/0xae
[] common_interrupt+0×1a/0×20
[] e1000e_mc_addr_list_update_generic+0×95/0×148 [e1000e]
[] e1000_mc_addr_list_update+0xe/0×12 [e1000e]
[] e1000_set_multi+0xcd/0xd5 [e1000e]
[] __dev_mc_upload+0×1d/0×1e
[] dev_mc_upload+0×28/0×3b
[] dev_open+0×44/0×62
[] dev_change_flags+0×47/0xe4
[] devinet_ioctl+0×24e/0×542
[] sock_ioctl+0×191/0×1b3
[] sock_ioctl+0×0/0×1b3
[] do_ioctl+0×1c/0×5d
[] vfs_ioctl+0×24a/0×25c
[] sys_ioctl+0×48/0×5f
[] syscall_call+0×7/0xb
=======================
pci0000:00: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX
pci0000:00: eth0: 10/100 speed: disabling TSO

]]> http://www.linuxblog.org/nic-card-bug-e1000_acquire_swflag_ich8lan/feed/ 0 Apache KeepAliveTimeout tunning http://www.linuxblog.org/apache-keepalivetimeout-tunning/ http://www.linuxblog.org/apache-keepalivetimeout-tunning/#comments Tue, 03 Feb 2009 18:19:39 +0000 Linux http://www.linuxblog.org/?p=13 Many of our readers are asking what KeepAliveTimeout setting should be used for Apache config. We usually select 2 to 5 seconds as it provides best performance for sites with medium visitors and prefer to use Nginx or any other front-end proxy to better manage thousands of multiple concurrent users.

]]> http://www.linuxblog.org/apache-keepalivetimeout-tunning/feed/ 0 ReiserFS for scalable and high load SMTP servers http://www.linuxblog.org/reiserfs-for-scalable-and-high-load-smtp-servers/ http://www.linuxblog.org/reiserfs-for-scalable-and-high-load-smtp-servers/#comments Tue, 19 Aug 2008 02:07:03 +0000 Linux http://www.linuxblog.org/?p=5 We have seen great performance on using ReiserFS for mail system spools and in our tests ReiserFS file system spool for Postfix queues was very fast. For best performance we used

notail, noatime mount options in /etc/fstab file.

Full example:

/dev/sda2/usr reiserfs notail,noatime,rw,auto 0 0

notatime – turns off atimes calls, reduces IO and greatly increases file system performance
notail – increases performance of ReiserFS especially for small files – works great for mail servers, web servers and caches. This option disables file pckaging in tree.

]]> http://www.linuxblog.org/reiserfs-for-scalable-and-high-load-smtp-servers/feed/ 0