|Summary:||SMP incorrectly detected on non-SMP board; kernel panic; docs slightly wrong|
|Product:||[Retired] Red Hat Linux||Reporter:||dripton|
|Component:||kernel||Assignee:||Cristian Gafton <gafton>|
|Status:||CLOSED CURRENTRELEASE||QA Contact:|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
Description dripton 1999-04-30 14:01:14 UTC
I have a Tyan Tomcat I board, which is a single-processor Pentium board but a close cousin of the dual Tomcat II. Apparently too close. At boot, the kernel says : total of 2 processors activated (66.36 BogoMIPS) enabling symetric IO mode done enabling IO-APIC IRQs IO-APIC pm 0,20,21,22,23,...,255 not connected MP-BIOS bug: 8254 timer not connected to IO-APIC trying to set up timer as ExtINT (found pm 0) failed trying to set up timer as BP IRQ failed Kernel panic IO-APIC + timer doesn't work In swapper task not syncing <hard lock> The Red Hat manual points out that on an SMP machine, two kernels are built. It says the LILO labels are smp and linux, but they were actually called linux and linux-u. (Might want to consider syncing the labels and the manual.) Anyway, linux-u works fine. If false SMP detection is a common problem, it might be a good idea to run the single-processor kernel by default and make those who want smp choose smp.
Comment 1 Jay Turner 1999-06-04 15:12:59 UTC
This issue has been forwarded to a developer for further action. In addition the manual correction has been forwarded to the docs staff.