ehmry/genode
ehmry
/
genode
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fs_rom: workaround for possible livelock 

Thanks to Alexander Boettcher for investigating!
This commit is contained in:
Norman Feske 2018-06-11 11:49:49 +02:00 committed by Christian Helmuth
parent bf055e2cb4
commit 37be984d34
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
repos/os/src/server/fs_rom/main.cc
View File

@ -487,6 +487,19 @@ class Fs_rom::Rom_root : public Root_component<Fs_rom::Rom_session_component>
void Component::construct(Genode::Env &env)
{
/*
* Print message to force the creation of the env LOG session, which would
* otherwise be created on the first (error) message. The latter becomes a
* problem when using the fs_rom as a provider for the env ROM sessions
* (like depot_rom in the sculpt scenario). Here, an error message printed
* in the synchronously called 'Rom_session::dataspace' RPC function may
* create a livelock on the attempt to obtain the LOG session.
*
* XXX This workaround can be removed with the eager creation of the
* the env log session.
*/
Genode::log("--- fs_rom ---");
static Genode::Sliced_heap sliced_heap(env.ram(), env.rm());
static Fs_rom::Rom_root inst(env, sliced_heap);
}