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linux-user: Clarify "Unable to reserve guest address space" error 

Now that we default to reserving nearly 4GB of RAM for the guest
address space when running a 32 bit linux-user guest on 64 bit
hosts, users are much more likely to run into it. Reword the
message to be more informative about what failed and provide
suggestions for how to fix things.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Peter Maydell 2012-08-20 11:36:32 +01:00 committed by Riku Voipio
parent 333858b77c
commit 097b8cb840
1 changed files with 4 additions and 1 deletions
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5
linux-user/main.c
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@ -3519,7 +3519,10 @@ int main(int argc, char **argv, char **envp)
guest_base = init_guest_space(guest_base, reserved_va, 0,
have_guest_base);
if (guest_base == (unsigned long)-1) {
fprintf(stderr, "Unable to reserve guest address space\n");
fprintf(stderr, "Unable to reserve 0x%lx bytes of virtual address "
"space for use as guest address space (check your virtual "
"memory ulimit setting or reserve less using -R option)\n",
reserved_va);
exit(1);
}