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| author | Kevin Wolf <kwolf@redhat.com> | 2011-09-01 16:16:10 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-09-06 11:23:51 +0200 |
| commit | 648fb0ea5e9d7f32c80ec23c3ece4321403dfecd (patch) | |
| tree | 5b0c1010a027aa79139a0dd2bd205a7984effa57 /microblaze-dis.c | |
| parent | 0fa9131a44943cc14c931a23eee040da4cc0c454 (diff) | |
| download | qemu-648fb0ea5e9d7f32c80ec23c3ece4321403dfecd.zip qemu-648fb0ea5e9d7f32c80ec23c3ece4321403dfecd.tar.gz qemu-648fb0ea5e9d7f32c80ec23c3ece4321403dfecd.tar.bz2 | |
async: Allow nested qemu_bh_poll calls
qemu may segfault when a BH handler first deletes a BH and then (possibly
indirectly) calls a nested qemu_bh_poll(). This is because the inner instance
frees the BH and deletes it from the list that the outer one processes.
This patch deletes BHs only in the outermost qemu_bh_poll instance.
Commit 7887f620 already tried to achieve the same, but it assumed that the BH
handler would only delete its own BH. With a nested qemu_bh_poll(), this isn't
guaranteed, so that commit wasn't enough. Hope this one fixes it for real.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'microblaze-dis.c')
0 files changed, 0 insertions, 0 deletions