Revision c3274763bfc3bf1ececa269ed6e6c4d7ec1c3e5e authored by Srivatsa S. Bhat on 17 February 2014, 10:48:21 UTC, committed by Rafael J. Wysocki on 19 February 2014, 00:04:56 UTC
The powernow-k8 driver maintains a per-cpu data-structure called powernow_data that is used to perform the frequency transitions. It initializes this data structure only for the policy->cpu. So, accesses to this data structure by other CPUs results in various problems because they would have been uninitialized. Specifically, if a cpu (!= policy->cpu) invokes the drivers' ->get() function, it returns 0 as the KHz value, since its per-cpu memory doesn't point to anything valid. This causes problems during suspend/resume since cpufreq_update_policy() tries to enforce this (0 KHz) as the current frequency of the CPU, and this madness gets propagated to adjust_jiffies() as well. Eventually, lots of things start breaking down, including the r8169 ethernet card, in one particularly interesting case reported by Pierre Ossman. Fix this by initializing the per-cpu data-structures of all the CPUs in the policy appropriately. References: https://bugzilla.kernel.org/show_bug.cgi?id=70311 Reported-by: Pierre Ossman <pierre@ossman.eu> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: All applicable <stable@vger.kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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File | Mode | Size |
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asymmetric_keys | ||
async_tx | ||
842.c | -rw-r--r-- | 4.6 KB |
Kconfig | -rw-r--r-- | 40.0 KB |
Makefile | -rw-r--r-- | 3.8 KB |
ablk_helper.c | -rw-r--r-- | 4.2 KB |
ablkcipher.c | -rw-r--r-- | 17.8 KB |
aead.c | -rw-r--r-- | 14.0 KB |
aes_generic.c | -rw-r--r-- | 61.9 KB |
af_alg.c | -rw-r--r-- | 9.3 KB |
ahash.c | -rw-r--r-- | 12.8 KB |
algapi.c | -rw-r--r-- | 19.8 KB |
algboss.c | -rw-r--r-- | 6.4 KB |
algif_hash.c | -rw-r--r-- | 6.8 KB |
algif_skcipher.c | -rw-r--r-- | 13.3 KB |
ansi_cprng.c | -rw-r--r-- | 10.8 KB |
anubis.c | -rw-r--r-- | 27.8 KB |
api.c | -rw-r--r-- | 13.4 KB |
arc4.c | -rw-r--r-- | 3.4 KB |
authenc.c | -rw-r--r-- | 20.0 KB |
authencesn.c | -rw-r--r-- | 23.1 KB |
blkcipher.c | -rw-r--r-- | 19.4 KB |
blowfish_common.c | -rw-r--r-- | 15.7 KB |
blowfish_generic.c | -rw-r--r-- | 3.4 KB |
camellia_generic.c | -rw-r--r-- | 34.9 KB |
cast5_generic.c | -rw-r--r-- | 20.8 KB |
cast6_generic.c | -rw-r--r-- | 9.5 KB |
cast_common.c | -rw-r--r-- | 13.1 KB |
cbc.c | -rw-r--r-- | 7.4 KB |
ccm.c | -rw-r--r-- | 21.4 KB |
chainiv.c | -rw-r--r-- | 8.5 KB |
cipher.c | -rw-r--r-- | 3.3 KB |
cmac.c | -rw-r--r-- | 7.5 KB |
compress.c | -rw-r--r-- | 1.3 KB |
crc32.c | -rw-r--r-- | 3.7 KB |
crc32c.c | -rw-r--r-- | 4.3 KB |
crct10dif_common.c | -rw-r--r-- | 3.6 KB |
crct10dif_generic.c | -rw-r--r-- | 3.2 KB |
cryptd.c | -rw-r--r-- | 24.9 KB |
crypto_null.c | -rw-r--r-- | 4.4 KB |
crypto_user.c | -rw-r--r-- | 12.3 KB |
crypto_wq.c | -rw-r--r-- | 968 bytes |
ctr.c | -rw-r--r-- | 12.3 KB |
cts.c | -rw-r--r-- | 9.8 KB |
deflate.c | -rw-r--r-- | 5.4 KB |
des_generic.c | -rw-r--r-- | 35.3 KB |
ecb.c | -rw-r--r-- | 4.9 KB |
eseqiv.c | -rw-r--r-- | 6.5 KB |
fcrypt.c | -rw-r--r-- | 18.0 KB |
fips.c | -rw-r--r-- | 705 bytes |
gcm.c | -rw-r--r-- | 36.6 KB |
gf128mul.c | -rw-r--r-- | 13.2 KB |
ghash-generic.c | -rw-r--r-- | 3.7 KB |
hash_info.c | -rw-r--r-- | 1.8 KB |
hmac.c | -rw-r--r-- | 6.9 KB |
internal.h | -rw-r--r-- | 4.1 KB |
khazad.c | -rw-r--r-- | 51.8 KB |
krng.c | -rw-r--r-- | 1.4 KB |
lrw.c | -rw-r--r-- | 9.2 KB |
lz4.c | -rw-r--r-- | 2.5 KB |
lz4hc.c | -rw-r--r-- | 2.5 KB |
lzo.c | -rw-r--r-- | 2.4 KB |
md4.c | -rw-r--r-- | 6.2 KB |
md5.c | -rw-r--r-- | 3.9 KB |
memneq.c | -rw-r--r-- | 6.1 KB |
michael_mic.c | -rw-r--r-- | 3.6 KB |
pcbc.c | -rw-r--r-- | 7.7 KB |
pcompress.c | -rw-r--r-- | 3.0 KB |
pcrypt.c | -rw-r--r-- | 14.7 KB |
proc.c | -rw-r--r-- | 3.7 KB |
ripemd.h | -rw-r--r-- | 974 bytes |
rmd128.c | -rw-r--r-- | 10.2 KB |
rmd160.c | -rw-r--r-- | 12.6 KB |
rmd256.c | -rw-r--r-- | 10.5 KB |
rmd320.c | -rw-r--r-- | 13.1 KB |
rng.c | -rw-r--r-- | 3.3 KB |
salsa20_generic.c | -rw-r--r-- | 6.7 KB |
scatterwalk.c | -rw-r--r-- | 3.3 KB |
seed.c | -rw-r--r-- | 17.4 KB |
seqiv.c | -rw-r--r-- | 8.5 KB |
serpent_generic.c | -rw-r--r-- | 21.2 KB |
sha1_generic.c | -rw-r--r-- | 3.5 KB |
sha256_generic.c | -rw-r--r-- | 12.1 KB |
sha512_generic.c | -rw-r--r-- | 8.7 KB |
shash.c | -rw-r--r-- | 17.5 KB |
tcrypt.c | -rw-r--r-- | 50.2 KB |
tcrypt.h | -rw-r--r-- | 3.7 KB |
tea.c | -rw-r--r-- | 6.6 KB |
testmgr.c | -rw-r--r-- | 69.4 KB |
testmgr.h | -rw-r--r-- | 965.5 KB |
tgr192.c | -rw-r--r-- | 30.5 KB |
twofish_common.c | -rw-r--r-- | 37.8 KB |
twofish_generic.c | -rw-r--r-- | 6.2 KB |
vmac.c | -rw-r--r-- | 18.9 KB |
wp512.c | -rw-r--r-- | 59.7 KB |
xcbc.c | -rw-r--r-- | 7.2 KB |
xor.c | -rw-r--r-- | 4.0 KB |
xts.c | -rw-r--r-- | 8.7 KB |
zlib.c | -rw-r--r-- | 9.5 KB |
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