5.2-BETA: IA32 SMP: atkbd gone, lock order reversal
swap_pager/uma_core
Matthias Andree
matthias.andree at gmx.de
Wed Dec 3 14:40:30 PST 2003
I have made some experiences on a Fujitsu-Siemens Primergy RX300
(Serverworks, Xeon with HyperThreading, MegaRAID) today. I was able to
boot the 5.2-BETA ISO from CD-RW after being unsuccessful with floppies
yesterday (not that I'd particularly trust floppies...)
Here's what I've found so far:
1. KEYBOARD LOST
I need to explicitly escape to the loader prompt and
set hint.atkbd.0.flags=0 -- with the default of 0x1, I am unable to
use the keyboard (tried twice, without and with re-plugging the
keyboard, to no avail). The exact reason is unknown, the machine has remote
management hardware on board which might interfere.
Can this flags=0 be made the default or would that interfere with USB
keyboard and headless configurations?
2. LOCK ORDER REVERSAL
I let the machine buildworld, build a kernel and cvsup ports+doc at
the same time through screen. Both buildworld and the kernel make
were launched with "-j2". The machine then caught a LOR, but it may
have happened after these tasks completed, neither make nor the cvsup
reported an error. Here's the dmesg:
FreeBSD 5.2-BETA #0: Tue Nov 25 08:24:08 GMT 2003
root at wv1u.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0a76000.
ACPI APIC Table: <PTLTD APIC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2800.13-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf29 Stepping = 9
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Hyperthreading: 2 logical CPUs
real memory = 536870912 (512 MB)
avail memory = 511750144 (488 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
...
SMP: AP CPU #1 Launched!
Mounting root from ufs:/dev/amrd0s4a
...
Lock order reversal
1st 0xc55acdec vm object (vm object) @ /usr/src/sys/vm/swap_pager.c:1323
2nd 0xc098cf60 swap_pager swhash (swap_pager swhash) @ /usr/src/sys/vm/swap_pager.c:1838
3rd 0xc10398c4 vm object (vm object) @ /usr/src/sys/vm/uma_core.c:876
Stack backtrace:
(no backtrace)
Since then, no further problems have been logged in the past three and a
half hours.
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
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