On 29/10/12 20:14, Tvrtko Ursulin wrote:
On 29/10/12 19:47, Milan Broz wrote:
On 10/29/2012 08:31 PM, Tvrtko Ursulin wrote:
Just tried 3.6.4 and it is still broken. Is there anything else I could
try to debug this?
See response from response from Ondra on dmcrypt list - your kernel
config
is perhaps broken.
I don't think that reached me - perhaps I was not copied.
Weird yes, I mean no one can spot anything bad with my config...
Please use fresh checkout, run make oldconfig and try again.
(Many people use 3.6 already and there is no other report.)
... and I just used it today to configure a fresh 3.6.4 (plus -rt10
patches) without a problem.
Unless RT patchset is the culprit. Hm.. that would be unexpected, but I
guess it is worth a shot. I'll let you know what happens without -rt.
Ha, this is exciting, vanilla 3.6.4 works, with -rt10 patch it does not.
Copying in linux-rt-users.
To recap, 3.6 RT seems to break dm-crypt. Try it like this:
cryptsetup --debug --key-file=- luksOpen /some/luks/formatted/file any-label
And kernel will fail like this:
Kernel says this:
device-mapper: table: 252:1: crypt: Error allocating crypto tfm
device-mapper: ioctl: error adding target to table
I think crypto modules are not getting auto loaded for some reason, but
even if I load them manually before hand and still breaks in the same way.
Maybe someone will have a "ah yes" moment? Here is the diff between
working (vanilla 3.6.4) and non-working (3.6.4-rt10) configs:
--- 1 2012-10-29 20:37:49.472306922 +0000
+++ 2 2012-10-29 20:37:52.319732779 +0000
@@ -892,7 +892,6 @@
# CONFIG_DEBUG_SECTION_MISMATCH is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
# CONFIG_DEBUG_SG is not set
-# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_STACK_USAGE is not set
@@ -1810,7 +1809,7 @@
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR=y
# CONFIG_MULTICORE_RAID456 is not set
-CONFIG_MUTEX_SPIN_ON_OWNER=y
+# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_MWAVE is not set
CONFIG_NAMESPACES=y
CONFIG_NATIONAL_PHY=y
@@ -1842,7 +1841,6 @@
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_U32=m
CONFIG_NET_CLS=y
-# CONFIG_NETCONSOLE is not set
CONFIG_NET_CORE=y
CONFIG_NETDEVICES=y
# CONFIG_NET_DSA is not set
@@ -2260,9 +2258,13 @@
CONFIG_PPP=y
# CONFIG_PPS is not set
CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT__LL is not set
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PREEMPT_RCU=y
+CONFIG_PREEMPT_RT_BASE=y
+# CONFIG_PREEMPT_RTB is not set
+CONFIG_PREEMPT_RT_FULL=y
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
@@ -2368,11 +2370,10 @@
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_LIB=y
-# CONFIG_RT_GROUP_SCHED is not set
CONFIG_RT_MUTEXES=y
# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
# CONFIG_SAMPLES is not set
# CONFIG_SATA_ACARD_AHCI is not set
CONFIG_SATA_AHCI=m
@@ -2851,7 +2852,6 @@
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_TRACE_SINK is not set
CONFIG_TRACING_SUPPORT=y
-# CONFIG_TRANSPARENT_HUGEPAGE is not set
CONFIG_TREE_PREEMPT_RCU=y
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_TUN=y
@@ -2867,7 +2867,6 @@
CONFIG_UID16=y
# CONFIG_UIO is not set
# CONFIG_ULTRIX_PARTITION is not set
-CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX_DIAG=y
# CONFIG_UNIXWARE_DISKLABEL is not set
No crypto related differences.
Tvrtko
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