On 03/27/2014 07:01 AM, Sasha Levin wrote:
Commit 4af712e8df ("random32: add prandom_reseed_late() and call when
nonblocking pool becomes initialized") has added a late reseed stage
that happens as soon as the nonblocking pool is marked as initialized.
This fails in the case that the nonblocking pool gets initialized
during __prandom_reseed()'s call to get_random_bytes(). In that case
we'd double back into __prandom_reseed() in an attempt to do a late
reseed - deadlocking on 'lock' early on in the boot process.
Instead, just avoid even waiting to do a reseed if a reseed is already
occuring.
Signed-off-by: Sasha Levin <sasha.le...@oracle.com>
Looks better now, thanks!
Fixes: 4af712e8df99 ("random32: add prandom_reseed_late() and call when nonblocking
pool becomes initialized")
Acked-by: Daniel Borkmann <dbork...@redhat.com>
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