SUMMARY: 2.6 5/98 on E4500?

From: Tim Evans (
Date: Tue Apr 25 2000 - 13:35:37 CDT

I asked (see below) about compatibility of Solaris 2.6 5/98 with the E4500.

Thanks to:

Michael Arndt <>
Davin Milun <>
Scott Clark - SSE <>
Arthur Darren Dunham <>
Karen Barrett <>
Buddy Lumpkin <>
NBP <>
Robert Hill <>
"Siepe, Carlos" <>

(and others which may arrive)

The problem here is the 8MB cache on the system. You need to get kernel patch 105181-20 (or higher) installed to use it properly. To get booted from CD to install the OS, you need to tell the Open Boot Prom to limit its cache size; at the ok prompt, enter:

ok limit-ecache-size
ok setenv auto-boot? false

Now you can boot from CD and install 2.6. Be sure to tell suninstall *not* to auto-reboot after the install completes. Shut the system down, enter "reset" at the ok prompt, and re-enter the limit-ecache-size command as above (it does not carry over between resets). Now boot the system again.

Retrieve and install the Recommended patch set from

Now the system will boot normally, with the limit-ecache-size command being entered at the ok prompt. (You can also re-set auto-boot? back to true.)

This procedure is laid out in detail in SunSolve doc #20149

Original Message
Is the 5/98 Release of Solaris 2.6 supported on E4500's, or do I have a hardware problem?

8-slot Sun Enterprise E4500/E5500, No Keyboard
       OpenBoot 3.2.24, 8192 MB memory installed, Serial #13220065.
       Ethernet address 8:0:20:c9:b8:e1, Host ID: 80c9b8e1.
       {0} ok boot cdrom -s
       Boot device: /sbus@3,0/SUNW,fas@3,8800000/sd@6,0:f File and args: -s
       SunOS Release 5.6 Version Generic_105181-05 [UNIX(R) System V Release 4.0]
       Copyright (c) 1983-1997, Sun Microsystems, Inc.
       panic[cpu0]/thread=0x10404040: recursive rw_enter, lp=10417348 wwwh=10404044 waiters=0 thread=10404040

Solaris 7 boots ok, but 2.6 doesn't

Tim Evans    |      T.Rowe Price Investment Technologies
11550 Cronridge Drive, Owings Mills, MD 21117
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