Very Computer

I recently (< a week ago)  installed all the "recommended" patches for
a Solaris 2.4 system and since then the system has been crashing
regularly with a "panic: free: freeing free block" message.

I searched the readme's on all the Sun patches I could find but
couldn't find a patch for Solaris 2.4 that mentioned this message.  It
IS mentioned in patches for other versions of the OS, but not for
SunOS.

Anyone have an idea of a way to fix it?  Should I just start backing
out all the patches I just installed until it starts working again?

The particular file system involved is a Solstice DiskSuite
meta-device, but I don't think that is the problem:  it was working
fine before the patches and I didn't install any DiskSuite patches.

The only other unusual thing in syslog is messages that say:

WARNING: md: logging device: /dev/md/dsk/d11 changed state to Hard Error
WARNING: md: logging device: /dev/md/dsk/d11 changed state to Okay

These show up after as the system reboots but I suspect they don't
indicate a real (hardware) problem, but I could be wrong.  There are
no other errors or unusual messages anywhere that I can find.

BTW, this is a Sun Sparc 5 system.

Thanks,

Jim

Sorry to follow up my own posting but I thought this might help
someone else.

I fixed the problem by backing out the kernel patch, 101945-43, going
back to 101945-41.  The readme for it said one of the fixes was for:

        1215792 delayed availability of freed diskspace when UFS
                logging with ODS 4.0/3.0

I suspect there is a problem with this particular fix.

Jim

Quote:> I recently (< a week ago)  installed all the "recommended" patches for
> a Solaris 2.4 system and since then the system has been crashing
> regularly with a "panic: free: freeing free block" message.

: Sorry to follow up my own posting but I thought this might help
: someone else.
:
: I fixed the problem by backing out the kernel patch, 101945-43, going
: back to 101945-41.  The readme for it said one of the fixes was for:
:
:       1215792 delayed availability of freed diskspace when UFS
:               logging with ODS 4.0/3.0
:
: I suspect there is a problem with this particular fix.

I have seen this problem on some old SS2 machines on drives connected to
FSBE cards.  Moving the drives onto the MB SCSI or replacing the
motherboard fixes the problem.