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Message-ID: <45EE9921DD12714AB1D7B7B9D2FE208B0230256D48BF@dbde03.ent.ti.com>
Date: Wed, 27 Jul 2011 23:35:19 +0530
From: "N, Mugunthan V" <mugunthanvnm@...com>
To: Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>
CC: linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: RE: [ANNOUNCE] 3.0-rt3
Hi RT Folks
I am testing 3.0-rt3 on AM3517 - Arm Cortex A8. As the kernel from the
mainline is not booting I am using a patch to boot AM3517 kernel on top of
the mainline kernel. Its crashing when I start hackbench and cyclictest.
There were two warnings while starting the test and then the kernel crashes.
Attaching the patch and the rt-config file.
[ 266.001220] BUG: sleeping function called from invalid context at
kernel/rtmutex.c:645
[ 266.001251] in_atomic(): 1, irqs_disabled(): 0, pid: 3, name: ksoftirqd/0
[ 266.001281] 1 lock held by ksoftirqd/0/3:
[ 266.001281] #0: (cpu_asid_lock){+.+...}, at: [<c006acfc>]
__new_context+0x14/0xbc
[ 266.001403] [<c0065f40>] (unwind_backtrace+0x0/0xf8) from [<c0466c80>]
(rt_spin_lock+0x24/0x5c)
[ 266.001434] [<c0466c80>] (rt_spin_lock+0x24/0x5c) from [<c006aca8>]
(set_mm_context+0x1c/0x5c)
[ 266.001464] [<c006aca8>] (set_mm_context+0x1c/0x5c) from [<c006ad3c>]
(__new_context+0x54/0xbc)
[ 266.001495] [<c006ad3c>] (__new_context+0x54/0xbc) from [<c0464f14>]
(__schedule+0x738/0x818)
[ 266.001556] [<c0464f14>] (__schedule+0x738/0x818) from [<c0095408>]
(schedule+0x34/0xac)
[ 266.001586] [<c0095408>] (schedule+0x34/0xac) from [<c046569c>]
(schedule_preempt_disabled+0x14/0x20)
[ 266.001647] [<c046569c>] (schedule_preempt_disabled+0x14/0x20) from
[<c00a2a74>] (run_ksoftirqd+0x174/0x194)
[ 266.001678] [<c00a2a74>] (run_ksoftirqd+0x174/0x194) from [<c00bc81c>]
(kthread+0x84/0x8c)
[ 266.001739] [<c00bc81c>] (kthread+0x84/0x8c) from [<c005fd2c>]
(kernel_thread_exit+0x0/0x8)
[ 267.494995] ------------[ cut here ]------------
[ 267.495086] WARNING: at kernel/lockdep.c:939 __bfs+0x1f8/0x254()
[ 267.495086] Modules linked in:
[ 267.495147] [<c0065f40>] (unwind_backtrace+0x0/0xf8) from [<c009b774>]
(warn_slowpath_common+0x4c/0x64)
[ 267.495178] [<c009b774>] (warn_slowpath_common+0x4c/0x64) from
[<c009b7a8>] (warn_slowpath_null+0x1c/0x24)
[ 267.495208] [<c009b7a8>] (warn_slowpath_null+0x1c/0x24) from
[<c00d0014>] (__bfs+0x1f8/0x254)
[ 267.495239] [<c00d0014>] (__bfs+0x1f8/0x254) from [<c00d38bc>]
(check_usage_backwards+0x74/0xfc)
[ 267.495269] [<c00d38bc>] (check_usage_backwards+0x74/0xfc) from
[<c00d2990>] (mark_lock+0x20c/0x660)
[ 267.495300] [<c00d2990>] (mark_lock+0x20c/0x660) from [<c00d495c>]
(__lock_acquire+0x74c/0x1c84)
[ 267.495330] [<c00d495c>] (__lock_acquire+0x74c/0x1c84) from [<c00d64c0>]
(lock_acquire+0x104/0x124)
[ 267.495361] [<c00d64c0>] (lock_acquire+0x104/0x124) from [<c046753c>]
(_raw_spin_lock+0x3c/0x4c)
[ 267.495422] [<c046753c>] (_raw_spin_lock+0x3c/0x4c) from [<c04665a4>]
(rt_mutex_slowlock+0x28/0x178)
[ 267.495452] [<c04665a4>] (rt_mutex_slowlock+0x28/0x178) from
[<c00eb734>] (rcu_boost_kthread+0xd4/0x168)
[ 267.495513] [<c00eb734>] (rcu_boost_kthread+0xd4/0x168) from
[<c00bc81c>] (kthread+0x84/0x8c)
[ 267.495544] [<c00bc81c>] (kthread+0x84/0x8c) from [<c005fd2c>]
(kernel_thread_exit+0x0/0x8)
[ 267.495574] ---[ end trace 000000000000000d ]---
[ 267.495605] Unable to handle kernel NULL pointer dereference at virtual
address 00000008
[ 267.495605] pgd = c0004000
[ 267.495635] [00000008] *pgd=00000000
[ 267.495635] Internal error: Oops: 17 [#1] PREEMPT SMP
[ 267.495666] Modules linked in:
[ 267.495697] CPU: 0 Tainted: G W
(3.0.0-rt3-00001-gcd4001e-dirty #6)
[ 267.495697] PC is at __bfs+0x118/0x254
[ 267.495727] LR is at warn_slowpath_null+0x1c/0x24
[ 267.495758] pc : [<c00cff34>] lr : [<c009b7a8>] psr: 60000093
[ 267.495758] sp : cf84bce8 ip : 00000000 fp : cf84bcfc
[ 267.495788] r10: 00004954 r9 : 00004958 r8 : c056c688
[ 267.495788] r7 : c8df6be0 r6 : c0948b20 r5 : c06f3258 r4 : 00000000
[ 267.495819] r3 : c094cb10 r2 : 00000200 r1 : c068ee10 r0 : 00000000
[ 267.495819] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM
Segment kernel
[ 267.495849] Control: 10c5387d Table: 8df68019 DAC: 00000017
[ 267.495849] Process rcub0 (pid: 10, stack limit = 0xcf84a2f8)
[ 267.495880] Stack: (0xcf84bce8 to 0xcf84c000)
[ 267.495910] bce0: cf84bff8 cf84bd54 c00cfd14 00000000
00000000 cf84bd30
[ 267.495941] bd00: cf84bd34 00000000 cf84bd30 cf8499d8 cf849520 c056c688
c00d3848 cf84a000
[ 267.495941] bd20: c09dc8d0 c00d38bc 00000000 c00626a8 00000000 00000000
c06f3160 c005fd2c
[ 267.495971] bd40: c005fd2c c06f31a0 00000000 00000000 00000000 c06f31a0
00000004 00000000
[ 267.496002] bd60: 00000002 cf8499d8 cf849520 c00d2990 00000008 cf849520
00000000 cf849520
[ 267.496032] bd80: 00000000 cf8499d8 cf84bf38 3c3be3df 00000000 c00d495c
00000093 00000000
[ 267.496063] bda0: cf84a000 00000000 00000000 00000000 cf84a000 cf84a000
00000000 3c3be3de
[ 267.496063] bdc0: 60000013 c0664ffc 00000000 cf849520 00000001 00000000
00000000 c046a3b0
[ 267.496093] bde0: 00000000 c008b7a4 00000000 cf849520 00000010 cf849520
00000000 cf8499d8
[ 267.496124] be00: c0666814 0000002a 00000000 c00d4670 cf849520 c0090bb8
00000001 00000000
[ 267.496154] be20: cf84a000 00000000 00000000 00000000 60000013 cf84bf38
00000002 c00d64c0
[ 267.496185] be40: 00000002 00000000 00000000 c04665a4 00000000 00000001
ffffffff 00000000
[ 267.496215] be60: cf84bf24 c04665a4 00000001 cf84bf24 00000000 a0000013
00000002 c046753c
[ 267.496215] be80: 00000002 00000000 c04665a4 cf84a000 ce25cae0 c0666800
cf84a000 c04665a4
[ 267.496246] bea0: 00000000 00000000 60000093 00000000 00000002 c00d64c0
00000002 00000080
[ 267.496276] bec0: 00000000 c00eb778 00000000 c0052520 c0052520 00000000
c0666800 c00eb778
[ 267.496307] bee0: a0000013 00000000 cf849520 00000000 cf84a000 00000000
cf84bf0c ce25cae0
[ 267.496337] bf00: c0666800 cf84a000 00000001 00000000 00000000 a0000013
cf84bf24 c00eb734
[ 267.496337] bf20: c0052520 cf84995c cf849520 c04677a8 c0df0520 c00eb660
00000000 c00d3160
[ 267.496368] bf40: cf84a000 00000001 cf84bf48 cf84bf48 ce25cae0 c0666800
c00eb660 cf84bf8c
[ 267.496398] bf60: cf82fec8 c0666800 c00eb660 00000000 00000000 00000000
00000000 c00bc81c
[ 267.496429] bf80: cf84a000 00000000 c0666800 00000000 00000000 c005ed18
dead4ead ffffffff
[ 267.496459] bfa0: ffffffff c06a1120 00000000 00000000 c0569f74 cf84bfb4
cf84bfb4 00000000
[ 267.496490] bfc0: cf82fec8 c00bc798 c06a1104 00000000 00000000 c0575564
cf84bfd8 cf84bfd8
[ 267.496490] bfe0: 00000000 cf82fec8 c00bc798 c005fd2c 00000013 c005fd2c
fc9cff55 b687ef0f
[ 267.496551] [<c00cff34>] (__bfs+0x118/0x254) from [<c00d38bc>]
(check_usage_backwards+0x74/0xfc)
[ 267.496582] [<c00d38bc>] (check_usage_backwards+0x74/0xfc) from
[<c00d2990>] (mark_lock+0x20c/0x660)
[ 267.496582] [<c00d2990>] (mark_lock+0x20c/0x660) from [<c00d495c>]
(__lock_acquire+0x74c/0x1c84)
[ 267.496612] [<c00d495c>] (__lock_acquire+0x74c/0x1c84) from [<c00d64c0>]
(lock_acquire+0x104/0x124)
[ 267.496643] [<c00d64c0>] (lock_acquire+0x104/0x124) from [<c046753c>]
(_raw_spin_lock+0x3c/0x4c)
[ 267.496673] [<c046753c>] (_raw_spin_lock+0x3c/0x4c) from [<c04665a4>]
(rt_mutex_slowlock+0x28/0x178)
[ 267.496734] [<c04665a4>] (rt_mutex_slowlock+0x28/0x178) from
[<c00eb734>] (rcu_boost_kthread+0xd4/0x168)
[ 267.496765] [<c00eb734>] (rcu_boost_kthread+0xd4/0x168) from
[<c00bc81c>] (kthread+0x84/0x8c)
[ 267.496795] [<c00bc81c>] (kthread+0x84/0x8c) from [<c005fd2c>]
(kernel_thread_exit+0x0/0x8)
[ 267.496826] Code: e0837182 e1570001 2a000035 e59f3114 (e5941008)
---
Regards,
Mugunthan V N.
-----Original Message-----
From: linux-rt-users-owner@...r.kernel.org [mailto:linux-rt-users-owner@...r.kernel.org] On Behalf Of Thomas Gleixner
Sent: Sunday, July 24, 2011 4:04 PM
To: LKML
Cc: linux-rt-users
Subject: [ANNOUNCE] 3.0-rt3
Dear RT Folks,
I'm pleased to announce the 3.0-rt3 release.
Changes versus 3.0-rt2:
* Fix earlyprintk really
* AMD NB fix for allocation in smp function call, reported by Ed
* Disabled a few config options on RT which have known issues
Patch against 3.0 can be found here:
http://www.kernel.org/pub/linux/kernel/projects/rt/patch-3.0-rt3.patch.bz2
The split quilt queue is available at:
http://www.kernel.org/pub/linux/kernel/projects/rt/patches-3.0-rt3.tar.bz2
Delta patch below.
Thanks,
tglx
----
arch/x86/include/asm/amd_nb.h | 6 +
arch/x86/kernel/cpu/intel_cacheinfo.c | 121 +++++++++++-----------------------
arch/x86/kernel/early_printk.c | 2
drivers/net/Kconfig | 1
localversion-rt | 2
mm/Kconfig | 2
6 files changed, 51 insertions(+), 83 deletions(-)
Index: linux-2.6/arch/x86/kernel/early_printk.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/early_printk.c
+++ linux-2.6/arch/x86/kernel/early_printk.c
@@ -171,7 +171,7 @@ static struct console early_serial_conso
static inline void early_console_register(struct console *con, int keep_early)
{
- if (early_console->index != -1) {
+ if (con->index != -1) {
printk(KERN_CRIT "ERROR: earlyprintk= %s already used\n",
con->name);
return;
Index: linux-2.6/localversion-rt
===================================================================
--- linux-2.6.orig/localversion-rt
+++ linux-2.6/localversion-rt
@@ -1 +1 @@
--rt2
+-rt3
Index: linux-2.6/arch/x86/kernel/cpu/intel_cacheinfo.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ linux-2.6/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -151,28 +151,17 @@ union _cpuid4_leaf_ecx {
u32 full;
};
-struct amd_l3_cache {
- struct amd_northbridge *nb;
- unsigned indices;
- u8 subcaches[4];
-};
-
-struct _cpuid4_info {
+struct _cpuid4_info_regs {
union _cpuid4_leaf_eax eax;
union _cpuid4_leaf_ebx ebx;
union _cpuid4_leaf_ecx ecx;
unsigned long size;
- struct amd_l3_cache *l3;
- DECLARE_BITMAP(shared_cpu_map, NR_CPUS);
+ struct amd_northbridge *nb;
};
-/* subset of above _cpuid4_info w/o shared_cpu_map */
-struct _cpuid4_info_regs {
- union _cpuid4_leaf_eax eax;
- union _cpuid4_leaf_ebx ebx;
- union _cpuid4_leaf_ecx ecx;
- unsigned long size;
- struct amd_l3_cache *l3;
+struct _cpuid4_info {
+ struct _cpuid4_info_regs base;
+ DECLARE_BITMAP(shared_cpu_map, NR_CPUS);
};
unsigned short num_cache_leaves;
@@ -314,12 +303,13 @@ struct _cache_attr {
/*
* L3 cache descriptors
*/
-static void __cpuinit amd_calc_l3_indices(struct amd_l3_cache *l3)
+static void __cpuinit amd_calc_l3_indices(struct amd_northbridge *nb)
{
+ struct amd_l3_cache *l3 = &nb->l3_cache;
unsigned int sc0, sc1, sc2, sc3;
u32 val = 0;
- pci_read_config_dword(l3->nb->misc, 0x1C4, &val);
+ pci_read_config_dword(nb->misc, 0x1C4, &val);
/* calculate subcache sizes */
l3->subcaches[0] = sc0 = !(val & BIT(0));
@@ -333,33 +323,16 @@ static void __cpuinit amd_calc_l3_indice
static void __cpuinit amd_init_l3_cache(struct _cpuid4_info_regs *this_leaf,
int index)
{
- static struct amd_l3_cache *__cpuinitdata l3_caches;
int node;
/* only for L3, and not in virtualized environments */
- if (index < 3 || amd_nb_num() == 0)
+ if (index < 3)
return;
- /*
- * Strictly speaking, the amount in @size below is leaked since it is
- * never freed but this is done only on shutdown so it doesn't matter.
- */
- if (!l3_caches) {
- int size = amd_nb_num() * sizeof(struct amd_l3_cache);
-
- l3_caches = kzalloc(size, GFP_ATOMIC);
- if (!l3_caches)
- return;
- }
-
node = amd_get_nb_id(smp_processor_id());
-
- if (!l3_caches[node].nb) {
- l3_caches[node].nb = node_to_amd_nb(node);
- amd_calc_l3_indices(&l3_caches[node]);
- }
-
- this_leaf->l3 = &l3_caches[node];
+ this_leaf->nb = node_to_amd_nb(node);
+ if (this_leaf->nb && !this_leaf->nb->l3_cache.indices)
+ amd_calc_l3_indices(this_leaf->nb);
}
/*
@@ -369,11 +342,11 @@ static void __cpuinit amd_init_l3_cache(
*
* @returns: the disabled index if used or negative value if slot free.
*/
-int amd_get_l3_disable_slot(struct amd_l3_cache *l3, unsigned slot)
+int amd_get_l3_disable_slot(struct amd_northbridge *nb, unsigned slot)
{
unsigned int reg = 0;
- pci_read_config_dword(l3->nb->misc, 0x1BC + slot * 4, ®);
+ pci_read_config_dword(nb->misc, 0x1BC + slot * 4, ®);
/* check whether this slot is activated already */
if (reg & (3UL << 30))
@@ -387,11 +360,10 @@ static ssize_t show_cache_disable(struct
{
int index;
- if (!this_leaf->l3 ||
- !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
+ if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
return -EINVAL;
- index = amd_get_l3_disable_slot(this_leaf->l3, slot);
+ index = amd_get_l3_disable_slot(this_leaf->base.nb, slot);
if (index >= 0)
return sprintf(buf, "%d\n", index);
@@ -408,7 +380,7 @@ show_cache_disable_##slot(struct _cpuid4
SHOW_CACHE_DISABLE(0)
SHOW_CACHE_DISABLE(1)
-static void amd_l3_disable_index(struct amd_l3_cache *l3, int cpu,
+static void amd_l3_disable_index(struct amd_northbridge *nb, int cpu,
unsigned slot, unsigned long idx)
{
int i;
@@ -421,10 +393,10 @@ static void amd_l3_disable_index(struct
for (i = 0; i < 4; i++) {
u32 reg = idx | (i << 20);
- if (!l3->subcaches[i])
+ if (!nb->l3_cache.subcaches[i])
continue;
- pci_write_config_dword(l3->nb->misc, 0x1BC + slot * 4, reg);
+ pci_write_config_dword(nb->misc, 0x1BC + slot * 4, reg);
/*
* We need to WBINVD on a core on the node containing the L3
@@ -434,7 +406,7 @@ static void amd_l3_disable_index(struct
wbinvd_on_cpu(cpu);
reg |= BIT(31);
- pci_write_config_dword(l3->nb->misc, 0x1BC + slot * 4, reg);
+ pci_write_config_dword(nb->misc, 0x1BC + slot * 4, reg);
}
}
@@ -448,24 +420,24 @@ static void amd_l3_disable_index(struct
*
* @return: 0 on success, error status on failure
*/
-int amd_set_l3_disable_slot(struct amd_l3_cache *l3, int cpu, unsigned slot,
+int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot,
unsigned long index)
{
int ret = 0;
/* check if @slot is already used or the index is already disabled */
- ret = amd_get_l3_disable_slot(l3, slot);
+ ret = amd_get_l3_disable_slot(nb, slot);
if (ret >= 0)
return -EINVAL;
- if (index > l3->indices)
+ if (index > nb->l3_cache.indices)
return -EINVAL;
/* check whether the other slot has disabled the same index already */
- if (index == amd_get_l3_disable_slot(l3, !slot))
+ if (index == amd_get_l3_disable_slot(nb, !slot))
return -EINVAL;
- amd_l3_disable_index(l3, cpu, slot, index);
+ amd_l3_disable_index(nb, cpu, slot, index);
return 0;
}
@@ -480,8 +452,7 @@ static ssize_t store_cache_disable(struc
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (!this_leaf->l3 ||
- !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
+ if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
return -EINVAL;
cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map));
@@ -489,7 +460,7 @@ static ssize_t store_cache_disable(struc
if (strict_strtoul(buf, 10, &val) < 0)
return -EINVAL;
- err = amd_set_l3_disable_slot(this_leaf->l3, cpu, slot, val);
+ err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val);
if (err) {
if (err == -EEXIST)
printk(KERN_WARNING "L3 disable slot %d in use!\n",
@@ -518,7 +489,7 @@ static struct _cache_attr cache_disable_
static ssize_t
show_subcaches(struct _cpuid4_info *this_leaf, char *buf, unsigned int cpu)
{
- if (!this_leaf->l3 || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+ if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
return -EINVAL;
return sprintf(buf, "%x\n", amd_get_subcaches(cpu));
@@ -533,7 +504,7 @@ store_subcaches(struct _cpuid4_info *thi
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (!this_leaf->l3 || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+ if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
return -EINVAL;
if (strict_strtoul(buf, 16, &val) < 0)
@@ -769,7 +740,7 @@ static void __cpuinit cache_shared_cpu_m
return;
}
this_leaf = CPUID4_INFO_IDX(cpu, index);
- num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing;
+ num_threads_sharing = 1 + this_leaf->base.eax.split.num_threads_sharing;
if (num_threads_sharing == 1)
cpumask_set_cpu(cpu, to_cpumask(this_leaf->shared_cpu_map));
@@ -820,29 +791,19 @@ static void __cpuinit free_cache_attribu
for (i = 0; i < num_cache_leaves; i++)
cache_remove_shared_cpu_map(cpu, i);
- kfree(per_cpu(ici_cpuid4_info, cpu)->l3);
kfree(per_cpu(ici_cpuid4_info, cpu));
per_cpu(ici_cpuid4_info, cpu) = NULL;
}
-static int
-__cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
-{
- struct _cpuid4_info_regs *leaf_regs =
- (struct _cpuid4_info_regs *)this_leaf;
-
- return cpuid4_cache_lookup_regs(index, leaf_regs);
-}
-
static void __cpuinit get_cpu_leaves(void *_retval)
{
int j, *retval = _retval, cpu = smp_processor_id();
/* Do cpuid and store the results */
for (j = 0; j < num_cache_leaves; j++) {
- struct _cpuid4_info *this_leaf;
- this_leaf = CPUID4_INFO_IDX(cpu, j);
- *retval = cpuid4_cache_lookup(j, this_leaf);
+ struct _cpuid4_info *this_leaf = CPUID4_INFO_IDX(cpu, j);
+
+ *retval = cpuid4_cache_lookup_regs(j, &this_leaf->base);
if (unlikely(*retval < 0)) {
int i;
@@ -900,16 +861,16 @@ static ssize_t show_##file_name(struct _
return sprintf(buf, "%lu\n", (unsigned long)this_leaf->object + val); \
}
-show_one_plus(level, eax.split.level, 0);
-show_one_plus(coherency_line_size, ebx.split.coherency_line_size, 1);
-show_one_plus(physical_line_partition, ebx.split.physical_line_partition, 1);
-show_one_plus(ways_of_associativity, ebx.split.ways_of_associativity, 1);
-show_one_plus(number_of_sets, ecx.split.number_of_sets, 1);
+show_one_plus(level, base.eax.split.level, 0);
+show_one_plus(coherency_line_size, base.ebx.split.coherency_line_size, 1);
+show_one_plus(physical_line_partition, base.ebx.split.physical_line_partition, 1);
+show_one_plus(ways_of_associativity, base.ebx.split.ways_of_associativity, 1);
+show_one_plus(number_of_sets, base.ecx.split.number_of_sets, 1);
static ssize_t show_size(struct _cpuid4_info *this_leaf, char *buf,
unsigned int cpu)
{
- return sprintf(buf, "%luK\n", this_leaf->size / 1024);
+ return sprintf(buf, "%luK\n", this_leaf->base.size / 1024);
}
static ssize_t show_shared_cpu_map_func(struct _cpuid4_info *this_leaf,
@@ -946,7 +907,7 @@ static inline ssize_t show_shared_cpu_li
static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf,
unsigned int cpu)
{
- switch (this_leaf->eax.split.type) {
+ switch (this_leaf->base.eax.split.type) {
case CACHE_TYPE_DATA:
return sprintf(buf, "Data\n");
case CACHE_TYPE_INST:
@@ -1135,7 +1096,7 @@ static int __cpuinit cache_add_dev(struc
ktype_cache.default_attrs = default_attrs;
#ifdef CONFIG_AMD_NB
- if (this_leaf->l3)
+ if (this_leaf->base.nb)
ktype_cache.default_attrs = amd_l3_attrs();
#endif
retval = kobject_init_and_add(&(this_object->kobj),
Index: linux-2.6/arch/x86/include/asm/amd_nb.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/amd_nb.h
+++ linux-2.6/arch/x86/include/asm/amd_nb.h
@@ -19,9 +19,15 @@ extern int amd_numa_init(void);
extern int amd_get_subcaches(int);
extern int amd_set_subcaches(int, int);
+struct amd_l3_cache {
+ unsigned indices;
+ u8 subcaches[4];
+};
+
struct amd_northbridge {
struct pci_dev *misc;
struct pci_dev *link;
+ struct amd_l3_cache l3_cache;
};
struct amd_northbridge_info {
Index: linux-2.6/drivers/net/Kconfig
===================================================================
--- linux-2.6.orig/drivers/net/Kconfig
+++ linux-2.6/drivers/net/Kconfig
@@ -3410,6 +3410,7 @@ config NET_FC
config NETCONSOLE
tristate "Network console logging support"
+ depends on !PREEMPT_RT_FULL
---help---
If you want to log kernel messages over the network, enable this.
See <file:Documentation/networking/netconsole.txt> for details.
Index: linux-2.6/mm/Kconfig
===================================================================
--- linux-2.6.orig/mm/Kconfig
+++ linux-2.6/mm/Kconfig
@@ -304,7 +304,7 @@ config NOMMU_INITIAL_TRIM_EXCESS
config TRANSPARENT_HUGEPAGE
bool "Transparent Hugepage Support"
- depends on X86 && MMU
+ depends on X86 && MMU && !PREEMPT_RT_FULL
select COMPACTION
help
Transparent Hugepages allows the kernel to use huge pages and
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Download attachment "am3517evm.patch" of type "application/octet-stream" (4456 bytes)
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