Re: Panic on 5.1-RELEASE with ahc

Hi,

This is a known problem that showed up late in the 5.1 release cycle.
I declined to allow the fix in as it was also somewhat disruptive.
Updating to 5.1-CURRENT should make the problem go away.  In any case
it's fairly harmless as it happens after the disks have been synced.

Scott

Matt Dainty wrote:
> Hi,
> 
> I've just acquired a new Dell PowerEdge 4600 server (2x 2.4GHz Xeons,
> 2GB, PERC 3/Di, ...) which I've installed FreeBSD 5.1-RELEASE on.
> 
> All the hardware seems to be detected okay, and I've rebuilt a kernel
> with unnecessary drivers removed and to take advantage of the SMP, and
> this seems to be working in my limited testing so far.
> 
> The only problem I have, (and this happened with the stock installed
> kernel too ISTR) is that on shutting down, I consistently get a panic,
> which after rebuilding my kernel with the debugging turned on, I have
> slightly more information:
> 
> ...
> Uptime: 1m48s
> NMI ISA a0, EISA ff
> RAM parity error, likely hardware failure.
> 
> Fatal trap 19: non-maskable interrupt trap while in kernel mode
> cpuid = 0; lapic.id = 00000000
> instruction pointer     = 0x8:0xc014cd64
> stack pointer           = 0x10:0xe11eac78
> frame pointer           = 0x10:0xe11eac84
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, IOPL = 0
> current process         = 1 (init)
> kernel: type 19 trap, code=0
> Stopped at      ahc_shutdown+0x24:      jmp     ahc_shutdown+0x29
> db> trace
> ahc_shutdown(c3b0bc00,0,c03326cd,175,32) at ahc_shutdown+0x24
> boot(0,0,c03326cd,af,e11ead40) at boot+0x6c0
> reboot(c3b17720,e11ead10,c0345860,3fb,1) at reboot+0x46
> syscall(2f,2f,2f,80a943a,bfbffdf8) at syscall+0x26e
> Xint0x80_syscall() at Xint0x80_syscall+0x1d
> --- syscall (55, FreeBSD ELF32, reboot), eip = 0x80507ab, esp = 0xbfbffc2c, ebp = 0xbfbffcf8 ---
> db>
> 
> This also causes the Hardware LCD display on the front to display "E13F5
> PCI SYSTEM", which I have to remove all power from the machine to clear,
> although the machine appears to still work with this message displayed.
> 
> On advice of the message regarding RAM/hardware failure, I've run all of
> the Dell diagnostics to check things like the RAM, and they all pass
> with no problem.
> 
> The machine has a 39160 fitted in one of the PCI-X slots and also has
> both an AIC7899 and AIC7890 onboard, the latter of which has a Quantum
> SDLT320 tape drive connected. I've tried removing the 39160 and this
> makes no difference. If I remove the ahc driver from my config and
> rebuild, I no longer get the panic, problem is I'd like to use the tape
> drive :-)
> 
> I've included the output of "pciconf -v -l" below if that's any use,
> otherwise I'm a bit green on debugging FreeBSD so if there is any more
> information you want/need, please let me know how to get it.
> 
> Cheers
> 
> Matt