Closing this bug since it has been expired a long time ago.
** Changed in: linux-source-2.6.19 (Ubuntu)
Status: Incomplete => Invalid
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noexec doesn't apply on 32-bit AMD64
https://bugs.launchpad.net/bugs/75157
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Bugs, w
At least on the guest. On the host, Parallels Workstation 2.0 at first
did not support PAE on the host at all, both on Windows and on Linux (in
which you get a error during compile of the kernel modules if you try to
do so against a PAE-enabled kernel). Parallels Workstation 2.1 did
support PAE, bu
"Not only that, Intel released a model of the Pentium M *recently* which
doesn't support PAE."
Yep, pre-2005 Pentium Ms and Celeron Ms that didn't support NX didn't support
PAE either. And don't forget Transmeta, who did not add PAE and NX support
until the Efficeon, or VIA, who did not add PAE
Any update on this? Is it really possible to make it work selectively on
certain platforms?
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noexec doesn't apply on 32-bit AMD64
https://bugs.launchpad.net/bugs/75157
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ubuntu-bu
I am going to look into a useful way to have PAE and non-PAE in the same
kernel (no function pointers, and alternatives would be a mess too).
Both sets of code would have to be present... macros... hrm.
** Changed in: linux-source-2.6.19 (Ubuntu)
Status: Invalid => Incomplete
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noexec do
Thanks, that's a more interesting answer. I'll look into if there's a
way to detect PAE mode availability, and see if I can come up with a
better solution than switching on 64G memory support.
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noexec doesn't apply on 32-bit AMD64
https://launchpad.net/bugs/75157
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PAE isn't supported by some processors... Keep in mind it was added with
the Pentium Pro, so i586 machines won't boot. Not only that, Intel
released a model of the Pentium M *recently* which doesn't support PAE.
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noexec doesn't apply on 32-bit AMD64
https://launchpad.net/bugs/75157
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ubuntu-
A better explanation would be.. well.. better? I suppose I'll read this
as, "We're not turning on basic security features on desktop kernels."
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noexec doesn't apply on 32-bit AMD64
https://launchpad.net/bugs/75157
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We're not turning on HIGHMEM64G on desktop kernels.
** Changed in: linux-source-2.6.19 (Ubuntu)
Status: Unconfirmed => Rejected
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noexec doesn't apply on 32-bit AMD64
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This source file generates a shared object for the test program. This
shared object is abused by the test program; it is protected non-
executable before the second call is made.
Compiled by:
$ gcc -O2 -shared -fpic test_so.c -o test_so.so
** Attachment added: "test_so.c"
http://librarian.la
This source file generates a test program. This test program calls a
function in test_so.so twice; before the second time, it marks the page
containing the function entry point as PROT_READ|PROT_WRITE.
This test program should segfault when it attempts to execute the
function the second time; the
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