Created attachment 338959 [details] dmesg Description of problem: On a fresh install of CentOS 5.3/i386 on a HP DL140 (Single core Xeon with HT enabled, 1GB of RAM and two 250GB IDE disks in a software raid 1) Version-Release number of selected component (if applicable): While this is CentOS I still though it could be of interest. The OS is CentOS 5.3 with the kernel upgraded to the latest available: 2.6.18-128.1.6.el5 How reproducible: always Steps to Reproduce: simply installing the OS,rebooting and running top/vmstat shows that the box is spending significant time in system time/soft interupts. load average hovers between 1 and 2 on a completely idle box. Interactive performance is fairly sluggish as well. booting the kernel with profile=2 shows the following profile: 3726021 total 1.7179 2706291 default_idle 30407.7640 977239 delay_tsc 51433.6316 62680 *unknown* 33245 use_tsc_delay 3022.2727 778 __const_udelay 21.0270 675 kunmap_atomic 6.7500 666 do_page_fault 0.5367 420 do_wp_page 0.4062 390 get_page_from_freelist 0.4762 348 context_struct_compute_av 0.5404 244 __handle_mm_fault 0.1071 236 avtab_search_node 2.3137 209 generic__raw_read_trylock 12.2941 158 _spin_lock 10.5333 146 vgacon_do_font_op 0.1619 143 unmap_vmas 0.1077 132 end_page_fs_misc 3.1429 111 system_call 2.7073 111 mpihelp_submul_1 0.6607
Created attachment 338960 [details] lsmod output
*** Bug 495086 has been marked as a duplicate of this bug. ***
Same issue on Dell Poweredge 650, software RAID1, two WD 320 GB PATA drives. Machine extremely sluggish - even the install took hours and was quite nonresponsive to console input.
This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug.
Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support).