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base: extend emergency dataspace size

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The emergency dataspace is used to accommodate the corner case where
a signal context capability is created while issuing the first
resource request. Normally, the attempt to upgrade the signal-session
quota under such a constrained situation would fail. By freeing the
emergency dataspace in this situation, we regain enough quota to
upgrade the signal session.

This is a follow up commit for "base: Raise RAM quota of signal session
to 16K" and fixes the resource_request test on 64-bit platforms.
This commit is contained in:
Norman Feske
2015-04-02 11:26:27 +02:00
committed by Christian Helmuth
parent eaac3cc1bd
commit ea9c2199e8
4 changed files with 6 additions and 2 deletions
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2
repos/base-linux/src/base/env/platform_env.h vendored
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@ -412,7 +412,7 @@ namespace Genode {
*
* See the comment of '_fallback_sig_cap()' in 'env/env.cc'.
*/
constexpr static size_t _emergency_ram_size() { return 4*1024; }
constexpr static size_t _emergency_ram_size() { return 8*1024; }
Ram_dataspace_capability _emergency_ram_ds;