Red Hat Bugzilla – Bug 198923
HIGHMEM not enabled in recent, standard kernels (2139, 2141)
Last modified: 2015-01-04 17:27:53 EST
Description of problem: recent kernels cannot access HIGHMEM
Version-Release number of selected component (if applicable): 2.6.17-1.2139 and
How reproducible: Always
Steps to Reproduce:
1. Boot machine
Additional info: from /var/log/messages I get:
Jul 9 16:43:11 localhost kernel: Warning only 896MB will be used.
Jul 9 16:43:11 localhost kernel: Use a HIGHMEM enabled kernel.
Jul 9 16:43:11 localhost kernel: 896MB LOWMEM available.
Full file attached
Created attachment 132451 [details]
Well this is extremely puzzling. The config for that kernel shows..
# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM64G is not set
So right now, this is a real head-scratcher.
ahh, are you running the 586 kernel perhaps ? That would explain it.
_why_ or _how_ you'd end up doing that on a Pentium-M is beyond me though.
This is what I get when I run: uname -a
> Linux localhost 2.6.16-1.2111_FC4 #1 Sat May 20 20:02:16 EDT 2006 i686 i686
running cat /proc/cpuinfo results in
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 9
model name : Intel(R) Pentium(R) M processor 1600MHz
BTW, shouldn't I b eable to run a i586 kernel on this machine? (or an i686)
[This comment added as part of a mass-update to all open FC4 kernel bugs]
FC4 has now transitioned to the Fedora legacy project, which will continue to
release security related updates for the kernel. As this bug is not security
related, it is unlikely to be fixed in an update for FC4, and has been migrated
Please retest with Fedora Core 5.
A new kernel update has been released (Version: 2.6.18-1.2200.fc5)
based upon a new upstream kernel release.
Please retest against this new kernel, as a large number of patches
go into each upstream release, possibly including changes that
may address this problem.
This bug has been placed in NEEDINFO state.
Due to the large volume of inactive bugs in bugzilla, if this bug is
still in this state in two weeks time, it will be closed.
Should this bug still be relevant after this period, the reporter
can reopen the bug at any time. Any other users on the Cc: list
of this bug can request that the bug be reopened by adding a
comment to the bug.
In the last few updates, some users upgrading from FC4->FC5
have reported that installing a kernel update has left their
systems unbootable. If you have been affected by this problem
please check you only have one version of device-mapper & lvm2
installed. See bug 207474 for further details.
If this bug is a problem preventing you from installing the
release this version is filed against, please see bug 169613.
If this bug has been fixed, but you are now experiencing a different
problem, please file a separate bug for the new problem.
This bug has been mass-closed along with all other bugs that
have been in NEEDINFO state for several months.
Due to the large volume of inactive bugs in bugzilla, this
is the only method we have of cleaning out stale bug reports
where the reporter has disappeared.
If you can reproduce this bug after installing all the
current updates, please reopen this bug.
If you are not the reporter, you can add a comment requesting
it be reopened, and someone will get to it asap.
Closing since there was an error in previous mass-close and they remained in