On Wed, Nov 06, 2019 at 09:30:49AM +0000, Sverdlin, Alexander (Nokia - DE/Ulm) wrote: > From: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx> > > Current polling timeout is 25 us. The hardware is currently configured to > harvest the entropy for 81920 us. This leads to timeouts even during > blocking read (wait=1). > > Log snippet: > [ 5.727589] [<c040ffcc>] (ks_sa_rng_probe) from [<c04181e8>] (platform_drv_probe+0x58/0xb4) > ... > [ 5.727805] hwrng: no data available > ... > [ 13.157016] random: systemd: uninitialized urandom read (16 bytes read) > [ 13.157033] systemd[1]: Initializing machine ID from random generator. > ... > [ 15.848770] random: fast init done > ... > [ 15.848807] random: crng init done > > After the patch: > [ 6.223534] random: systemd: uninitialized urandom read (16 bytes read) > [ 6.223551] systemd[1]: Initializing machine ID from random generator. > ... > [ 6.876075] random: fast init done > ... > [ 6.954200] random: systemd: uninitialized urandom read (16 bytes read) > [ 6.955244] random: systemd: uninitialized urandom read (16 bytes read) > ... > [ 7.121948] random: crng init done > > Signed-off-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx> > --- > drivers/char/hw_random/ks-sa-rng.c | 38 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 38 insertions(+) Patch applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
