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lttng-modules: Fix "LTTng: vmalloc_sync_all symbol lookup failed" warnings

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Fix the following warnings introduced after backporting linux kernel commit [1]
to stable branches:
# lttng create session
...
[  483.242037] LTTng: vmalloc_sync_all symbol lookup failed.
[  483.257056] Page fault handler and NMI tracing might trigger faults.
...

These patches should be dropped when a new stable 12.0 release is available.

[1] 763802b53a

(From OE-Core rev: f2e48f9127aee949364696315e3adc861aba1dd6)

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ovidiu Panait
2020-05-15 15:11:06 +03:00
committed by Richard Purdie
parent b3d1d71bab
commit 17488d3e1d
5 changed files with 1044 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

853
meta/recipes-kernel/lttng/lttng-modules/0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch Normal file
View File

@@ -0,0 +1,853 @@
From a2cc0e06330e55eefe668f7d6370de6d3177a907 Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 5 May 2020 13:38:31 -0400
Subject: [PATCH] Update for kernel 5.7: use vmalloc_sync_mappings on kernels
>= 5.7
Upstream-Status: Backport [https://github.com/lttng/lttng-modules/commit/da0fcb1497ff2437407883647a8a0bba12bd0f91]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
---
lib/ringbuffer/ring_buffer_backend.c | 4 +--
lttng-abi.c | 4 +--
lttng-context-callstack.c | 2 +-
lttng-context-cgroup-ns.c | 2 +-
lttng-context-cpu-id.c | 2 +-
lttng-context-egid.c | 2 +-
lttng-context-euid.c | 2 +-
lttng-context-gid.c | 2 +-
lttng-context-hostname.c | 2 +-
lttng-context-interruptible.c | 2 +-
lttng-context-ipc-ns.c | 2 +-
lttng-context-migratable.c | 2 +-
lttng-context-mnt-ns.c | 2 +-
lttng-context-need-reschedule.c | 2 +-
lttng-context-net-ns.c | 2 +-
lttng-context-nice.c | 2 +-
lttng-context-perf-counters.c | 2 +-
lttng-context-pid-ns.c | 2 +-
lttng-context-pid.c | 2 +-
lttng-context-ppid.c | 2 +-
lttng-context-preemptible.c | 2 +-
lttng-context-prio.c | 2 +-
lttng-context-procname.c | 2 +-
lttng-context-sgid.c | 2 +-
lttng-context-suid.c | 2 +-
lttng-context-tid.c | 2 +-
lttng-context-uid.c | 2 +-
lttng-context-user-ns.c | 2 +-
lttng-context-uts-ns.c | 2 +-
lttng-context-vegid.c | 2 +-
lttng-context-veuid.c | 2 +-
lttng-context-vgid.c | 2 +-
lttng-context-vpid.c | 2 +-
lttng-context-vppid.c | 2 +-
lttng-context-vsgid.c | 2 +-
lttng-context-vsuid.c | 2 +-
lttng-context-vtid.c | 2 +-
lttng-context-vuid.c | 2 +-
lttng-context.c | 2 +-
lttng-events.c | 10 +++---
lttng-ring-buffer-client.h | 4 +--
lttng-ring-buffer-metadata-client.h | 4 +--
lttng-syscalls.c | 2 +-
probes/lttng-kprobes.c | 2 +-
probes/lttng-kretprobes.c | 2 +-
probes/lttng-tracepoint-event-impl.h | 4 +--
probes/lttng-uprobes.c | 2 +-
probes/lttng.c | 2 +-
tests/probes/lttng-test.c | 2 +-
wrapper/vmalloc.h | 49 ++++++++++++++++++++++++++--
50 files changed, 104 insertions(+), 61 deletions(-)
diff --git a/lib/ringbuffer/ring_buffer_backend.c b/lib/ringbuffer/ring_buffer_backend.c
index d4bec25..d232b7f 100644
--- a/lib/ringbuffer/ring_buffer_backend.c
+++ b/lib/ringbuffer/ring_buffer_backend.c
@@ -17,7 +17,7 @@
#include <linux/vmalloc.h>
#include <wrapper/mm.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/ringbuffer/config.h>
#include <wrapper/ringbuffer/backend.h>
#include <wrapper/ringbuffer/frontend.h>
@@ -156,7 +156,7 @@ int lib_ring_buffer_backend_allocate(const struct lib_ring_buffer_config *config
* If kmalloc ever uses vmalloc underneath, make sure the buffer pages
* will not fault.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
wrapper_clear_current_oom_origin();
vfree(pages);
return 0;
diff --git a/lttng-abi.c b/lttng-abi.c
index b63e376..826ecab 100644
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -30,7 +30,7 @@
#include <linux/uaccess.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/ringbuffer/vfs.h>
#include <wrapper/ringbuffer/backend.h>
#include <wrapper/ringbuffer/frontend.h>
@@ -1938,7 +1938,7 @@ int __init lttng_abi_init(void)
{
int ret = 0;
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
lttng_clock_ref();
ret = lttng_tp_mempool_init();
diff --git a/lttng-context-callstack.c b/lttng-context-callstack.c
index 195990a..ba35a39 100644
--- a/lttng-context-callstack.c
+++ b/lttng-context-callstack.c
@@ -141,7 +141,7 @@ int __lttng_add_callstack_generic(struct lttng_ctx **ctx,
field->record = lttng_callstack_record;
field->priv = fdata;
field->destroy = lttng_callstack_destroy;
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
error_create:
diff --git a/lttng-context-cgroup-ns.c b/lttng-context-cgroup-ns.c
index 81486e5..f324b7e 100644
--- a/lttng-context-cgroup-ns.c
+++ b/lttng-context-cgroup-ns.c
@@ -97,7 +97,7 @@ int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx)
field->record = cgroup_ns_record;
field->get_value = cgroup_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_cgroup_ns_to_ctx);
diff --git a/lttng-context-cpu-id.c b/lttng-context-cpu-id.c
index 3778225..6e2f3f4 100644
--- a/lttng-context-cpu-id.c
+++ b/lttng-context-cpu-id.c
@@ -68,7 +68,7 @@ int lttng_add_cpu_id_to_ctx(struct lttng_ctx **ctx)
field->record = cpu_id_record;
field->get_value = cpu_id_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_cpu_id_to_ctx);
diff --git a/lttng-context-egid.c b/lttng-context-egid.c
index 51536e2..bdcebb9 100644
--- a/lttng-context-egid.c
+++ b/lttng-context-egid.c
@@ -70,7 +70,7 @@ int lttng_add_egid_to_ctx(struct lttng_ctx **ctx)
field->record = egid_record;
field->get_value = egid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_egid_to_ctx);
diff --git a/lttng-context-euid.c b/lttng-context-euid.c
index 1bcd53f..c2b8dcd 100644
--- a/lttng-context-euid.c
+++ b/lttng-context-euid.c
@@ -70,7 +70,7 @@ int lttng_add_euid_to_ctx(struct lttng_ctx **ctx)
field->record = euid_record;
field->get_value = euid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_euid_to_ctx);
diff --git a/lttng-context-gid.c b/lttng-context-gid.c
index da54207..c355e8c 100644
--- a/lttng-context-gid.c
+++ b/lttng-context-gid.c
@@ -70,7 +70,7 @@ int lttng_add_gid_to_ctx(struct lttng_ctx **ctx)
field->record = gid_record;
field->get_value = gid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_gid_to_ctx);
diff --git a/lttng-context-hostname.c b/lttng-context-hostname.c
index e485aa9..17dbd57 100644
--- a/lttng-context-hostname.c
+++ b/lttng-context-hostname.c
@@ -101,7 +101,7 @@ int lttng_add_hostname_to_ctx(struct lttng_ctx **ctx)
field->record = hostname_record;
field->get_value = hostname_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_hostname_to_ctx);
diff --git a/lttng-context-interruptible.c b/lttng-context-interruptible.c
index f3da199..8bd279a 100644
--- a/lttng-context-interruptible.c
+++ b/lttng-context-interruptible.c
@@ -75,7 +75,7 @@ int lttng_add_interruptible_to_ctx(struct lttng_ctx **ctx)
field->record = interruptible_record;
field->get_value = interruptible_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_interruptible_to_ctx);
diff --git a/lttng-context-ipc-ns.c b/lttng-context-ipc-ns.c
index 78d5966..40b901b 100644
--- a/lttng-context-ipc-ns.c
+++ b/lttng-context-ipc-ns.c
@@ -96,7 +96,7 @@ int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx)
field->record = ipc_ns_record;
field->get_value = ipc_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_ipc_ns_to_ctx);
diff --git a/lttng-context-migratable.c b/lttng-context-migratable.c
index e3d8ede..65154b8 100644
--- a/lttng-context-migratable.c
+++ b/lttng-context-migratable.c
@@ -68,7 +68,7 @@ int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx)
field->record = migratable_record;
field->get_value = migratable_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_migratable_to_ctx);
diff --git a/lttng-context-mnt-ns.c b/lttng-context-mnt-ns.c
index b5bb955..cb59776 100644
--- a/lttng-context-mnt-ns.c
+++ b/lttng-context-mnt-ns.c
@@ -98,7 +98,7 @@ int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx)
field->record = mnt_ns_record;
field->get_value = mnt_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_mnt_ns_to_ctx);
diff --git a/lttng-context-need-reschedule.c b/lttng-context-need-reschedule.c
index f29fb28..94efaa5 100644
--- a/lttng-context-need-reschedule.c
+++ b/lttng-context-need-reschedule.c
@@ -68,7 +68,7 @@ int lttng_add_need_reschedule_to_ctx(struct lttng_ctx **ctx)
field->record = need_reschedule_record;
field->get_value = need_reschedule_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_need_reschedule_to_ctx);
diff --git a/lttng-context-net-ns.c b/lttng-context-net-ns.c
index 6694037..37de09f 100644
--- a/lttng-context-net-ns.c
+++ b/lttng-context-net-ns.c
@@ -97,7 +97,7 @@ int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx)
field->record = net_ns_record;
field->get_value = net_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_net_ns_to_ctx);
diff --git a/lttng-context-nice.c b/lttng-context-nice.c
index 563e805..acaba85 100644
--- a/lttng-context-nice.c
+++ b/lttng-context-nice.c
@@ -68,7 +68,7 @@ int lttng_add_nice_to_ctx(struct lttng_ctx **ctx)
field->record = nice_record;
field->get_value = nice_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_nice_to_ctx);
diff --git a/lttng-context-perf-counters.c b/lttng-context-perf-counters.c
index 43c4077..6b04d12 100644
--- a/lttng-context-perf-counters.c
+++ b/lttng-context-perf-counters.c
@@ -321,7 +321,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
field->u.perf_counter = perf_field;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
diff --git a/lttng-context-pid-ns.c b/lttng-context-pid-ns.c
index f039f26..ccf629d 100644
--- a/lttng-context-pid-ns.c
+++ b/lttng-context-pid-ns.c
@@ -98,7 +98,7 @@ int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx)
field->record = pid_ns_record;
field->get_value = pid_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_pid_ns_to_ctx);
diff --git a/lttng-context-pid.c b/lttng-context-pid.c
index b3caabb..326eabe 100644
--- a/lttng-context-pid.c
+++ b/lttng-context-pid.c
@@ -68,7 +68,7 @@ int lttng_add_pid_to_ctx(struct lttng_ctx **ctx)
field->record = pid_record;
field->get_value = pid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_pid_to_ctx);
diff --git a/lttng-context-ppid.c b/lttng-context-ppid.c
index ef84ad1..ff25288 100644
--- a/lttng-context-ppid.c
+++ b/lttng-context-ppid.c
@@ -90,7 +90,7 @@ int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx)
field->record = ppid_record;
field->get_value = ppid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_ppid_to_ctx);
diff --git a/lttng-context-preemptible.c b/lttng-context-preemptible.c
index 328f2a4..867805b 100644
--- a/lttng-context-preemptible.c
+++ b/lttng-context-preemptible.c
@@ -86,7 +86,7 @@ int lttng_add_preemptible_to_ctx(struct lttng_ctx **ctx)
field->record = preemptible_record;
field->get_value = preemptible_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_preemptible_to_ctx);
diff --git a/lttng-context-prio.c b/lttng-context-prio.c
index b5d21e7..367f7bd 100644
--- a/lttng-context-prio.c
+++ b/lttng-context-prio.c
@@ -89,7 +89,7 @@ int lttng_add_prio_to_ctx(struct lttng_ctx **ctx)
field->record = prio_record;
field->get_value = prio_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_prio_to_ctx);
diff --git a/lttng-context-procname.c b/lttng-context-procname.c
index 54007d1..8f18ca2 100644
--- a/lttng-context-procname.c
+++ b/lttng-context-procname.c
@@ -72,7 +72,7 @@ int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
field->record = procname_record;
field->get_value = procname_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_procname_to_ctx);
diff --git a/lttng-context-sgid.c b/lttng-context-sgid.c
index 61c8d53..2a58cbd 100644
--- a/lttng-context-sgid.c
+++ b/lttng-context-sgid.c
@@ -70,7 +70,7 @@ int lttng_add_sgid_to_ctx(struct lttng_ctx **ctx)
field->record = sgid_record;
field->get_value = sgid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_sgid_to_ctx);
diff --git a/lttng-context-suid.c b/lttng-context-suid.c
index 66d3ef5..ab3e2a9 100644
--- a/lttng-context-suid.c
+++ b/lttng-context-suid.c
@@ -70,7 +70,7 @@ int lttng_add_suid_to_ctx(struct lttng_ctx **ctx)
field->record = suid_record;
field->get_value = suid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_suid_to_ctx);
diff --git a/lttng-context-tid.c b/lttng-context-tid.c
index d2a20e6..f6defc4 100644
--- a/lttng-context-tid.c
+++ b/lttng-context-tid.c
@@ -71,7 +71,7 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx)
field->record = tid_record;
field->get_value = tid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_tid_to_ctx);
diff --git a/lttng-context-uid.c b/lttng-context-uid.c
index 5f11de2..5593852 100644
--- a/lttng-context-uid.c
+++ b/lttng-context-uid.c
@@ -70,7 +70,7 @@ int lttng_add_uid_to_ctx(struct lttng_ctx **ctx)
field->record = uid_record;
field->get_value = uid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_uid_to_ctx);
diff --git a/lttng-context-user-ns.c b/lttng-context-user-ns.c
index 746e4d9..0ed62e3 100644
--- a/lttng-context-user-ns.c
+++ b/lttng-context-user-ns.c
@@ -82,7 +82,7 @@ int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx)
field->record = user_ns_record;
field->get_value = user_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_user_ns_to_ctx);
diff --git a/lttng-context-uts-ns.c b/lttng-context-uts-ns.c
index 7352a3d..283bc73 100644
--- a/lttng-context-uts-ns.c
+++ b/lttng-context-uts-ns.c
@@ -96,7 +96,7 @@ int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx)
field->record = uts_ns_record;
field->get_value = uts_ns_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_uts_ns_to_ctx);
diff --git a/lttng-context-vegid.c b/lttng-context-vegid.c
index 604da2a..1431dac 100644
--- a/lttng-context-vegid.c
+++ b/lttng-context-vegid.c
@@ -70,7 +70,7 @@ int lttng_add_vegid_to_ctx(struct lttng_ctx **ctx)
field->record = vegid_record;
field->get_value = vegid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vegid_to_ctx);
diff --git a/lttng-context-veuid.c b/lttng-context-veuid.c
index 983ae6a..a1b5b70 100644
--- a/lttng-context-veuid.c
+++ b/lttng-context-veuid.c
@@ -70,7 +70,7 @@ int lttng_add_veuid_to_ctx(struct lttng_ctx **ctx)
field->record = veuid_record;
field->get_value = veuid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_veuid_to_ctx);
diff --git a/lttng-context-vgid.c b/lttng-context-vgid.c
index e08c77d..0eed24e 100644
--- a/lttng-context-vgid.c
+++ b/lttng-context-vgid.c
@@ -70,7 +70,7 @@ int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx)
field->record = vgid_record;
field->get_value = vgid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vgid_to_ctx);
diff --git a/lttng-context-vpid.c b/lttng-context-vpid.c
index 982ce55..b5b6ce0 100644
--- a/lttng-context-vpid.c
+++ b/lttng-context-vpid.c
@@ -83,7 +83,7 @@ int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx)
field->record = vpid_record;
field->get_value = vpid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vpid_to_ctx);
diff --git a/lttng-context-vppid.c b/lttng-context-vppid.c
index 66d6382..347ac63 100644
--- a/lttng-context-vppid.c
+++ b/lttng-context-vppid.c
@@ -112,7 +112,7 @@ int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx)
field->record = vppid_record;
field->get_value = vppid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vppid_to_ctx);
diff --git a/lttng-context-vsgid.c b/lttng-context-vsgid.c
index aca5eda..3daf889 100644
--- a/lttng-context-vsgid.c
+++ b/lttng-context-vsgid.c
@@ -70,7 +70,7 @@ int lttng_add_vsgid_to_ctx(struct lttng_ctx **ctx)
field->record = vsgid_record;
field->get_value = vsgid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vsgid_to_ctx);
diff --git a/lttng-context-vsuid.c b/lttng-context-vsuid.c
index 66c1300..d7fb0db 100644
--- a/lttng-context-vsuid.c
+++ b/lttng-context-vsuid.c
@@ -70,7 +70,7 @@ int lttng_add_vsuid_to_ctx(struct lttng_ctx **ctx)
field->record = vsuid_record;
field->get_value = vsuid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vsuid_to_ctx);
diff --git a/lttng-context-vtid.c b/lttng-context-vtid.c
index 8fd68a8..e81ba0e 100644
--- a/lttng-context-vtid.c
+++ b/lttng-context-vtid.c
@@ -83,7 +83,7 @@ int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx)
field->record = vtid_record;
field->get_value = vtid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vtid_to_ctx);
diff --git a/lttng-context-vuid.c b/lttng-context-vuid.c
index 6ae575f..33e22d3 100644
--- a/lttng-context-vuid.c
+++ b/lttng-context-vuid.c
@@ -70,7 +70,7 @@ int lttng_add_vuid_to_ctx(struct lttng_ctx **ctx)
field->record = vuid_record;
field->get_value = vuid_get_value;
lttng_context_update(*ctx);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_vuid_to_ctx);
diff --git a/lttng-context.c b/lttng-context.c
index eb4534c..a6d4ee6 100644
--- a/lttng-context.c
+++ b/lttng-context.c
@@ -11,7 +11,7 @@
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/slab.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <lttng-events.h>
#include <lttng-tracer.h>
diff --git a/lttng-events.c b/lttng-events.c
index a1c8445..401f646 100644
--- a/lttng-events.c
+++ b/lttng-events.c
@@ -30,7 +30,7 @@
#include <linux/uuid.h>
#include <linux/dmi.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/random.h>
#include <wrapper/tracepoint.h>
#include <wrapper/list.h>
@@ -2753,9 +2753,9 @@ end:
* Registers a transport which can be used as output to extract the data out of
* LTTng. The module calling this registration function must ensure that no
* trap-inducing code will be executed by the transport functions. E.g.
- * vmalloc_sync_all() must be called between a vmalloc and the moment the memory
+ * vmalloc_sync_mappings() must be called between a vmalloc and the moment the memory
* is made visible to the transport function. This registration acts as a
- * vmalloc_sync_all. Therefore, only if the module allocates virtual memory
+ * vmalloc_sync_mappings. Therefore, only if the module allocates virtual memory
* after its registration must it synchronize the TLBs.
*/
void lttng_transport_register(struct lttng_transport *transport)
@@ -2763,9 +2763,9 @@ void lttng_transport_register(struct lttng_transport *transport)
/*
* Make sure no page fault can be triggered by the module about to be
* registered. We deal with this here so we don't have to call
- * vmalloc_sync_all() in each module's init.
+ * vmalloc_sync_mappings() in each module's init.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
mutex_lock(&sessions_mutex);
list_add_tail(&transport->node, &lttng_transport_list);
diff --git a/lttng-ring-buffer-client.h b/lttng-ring-buffer-client.h
index d5c512c..ff62830 100644
--- a/lttng-ring-buffer-client.h
+++ b/lttng-ring-buffer-client.h
@@ -10,7 +10,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <lib/bitfield.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/trace-clock.h>
#include <lttng-events.h>
#include <lttng-tracer.h>
@@ -766,7 +766,7 @@ static int __init lttng_ring_buffer_client_init(void)
* This vmalloc sync all also takes care of the lib ring buffer
* vmalloc'd module pages when it is built as a module into LTTng.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
lttng_transport_register(&lttng_relay_transport);
return 0;
}
diff --git a/lttng-ring-buffer-metadata-client.h b/lttng-ring-buffer-metadata-client.h
index 17ffd75..a098b8d 100644
--- a/lttng-ring-buffer-metadata-client.h
+++ b/lttng-ring-buffer-metadata-client.h
@@ -9,7 +9,7 @@
#include <linux/module.h>
#include <linux/types.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <lttng-events.h>
#include <lttng-tracer.h>
@@ -428,7 +428,7 @@ static int __init lttng_ring_buffer_client_init(void)
* This vmalloc sync all also takes care of the lib ring buffer
* vmalloc'd module pages when it is built as a module into LTTng.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
lttng_transport_register(&lttng_relay_transport);
return 0;
}
diff --git a/lttng-syscalls.c b/lttng-syscalls.c
index fb14f6b..97f1ba9 100644
--- a/lttng-syscalls.c
+++ b/lttng-syscalls.c
@@ -760,7 +760,7 @@ int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
struct lttng_kernel_event ev;
int ret;
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
if (!chan->sc_table) {
/* create syscall table mapping syscall to events */
diff --git a/probes/lttng-kprobes.c b/probes/lttng-kprobes.c
index c0a15e4..a44eaa1 100644
--- a/probes/lttng-kprobes.c
+++ b/probes/lttng-kprobes.c
@@ -132,7 +132,7 @@ int lttng_kprobes_register(const char *name,
* Well.. kprobes itself puts the page fault handler on the blacklist,
* but we can never be too careful.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
ret = register_kprobe(&event->u.kprobe.kp);
if (ret)
diff --git a/probes/lttng-kretprobes.c b/probes/lttng-kretprobes.c
index 4b18d46..ab98ff2 100644
--- a/probes/lttng-kretprobes.c
+++ b/probes/lttng-kretprobes.c
@@ -221,7 +221,7 @@ int lttng_kretprobes_register(const char *name,
* Well.. kprobes itself puts the page fault handler on the blacklist,
* but we can never be too careful.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
ret = register_kretprobe(&lttng_krp->krp);
if (ret)
diff --git a/probes/lttng-tracepoint-event-impl.h b/probes/lttng-tracepoint-event-impl.h
index 321cdfa..77b8638 100644
--- a/probes/lttng-tracepoint-event-impl.h
+++ b/probes/lttng-tracepoint-event-impl.h
@@ -15,7 +15,7 @@
#include <probes/lttng.h>
#include <probes/lttng-types.h>
#include <probes/lttng-probe-user.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/ringbuffer/frontend_types.h>
#include <wrapper/ringbuffer/backend.h>
#include <wrapper/rcu.h>
@@ -1391,7 +1391,7 @@ static __used struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = {
#ifndef TP_MODULE_NOINIT
static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void)
{
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
return lttng_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM));
}
diff --git a/probes/lttng-uprobes.c b/probes/lttng-uprobes.c
index 64d8237..bc10128 100644
--- a/probes/lttng-uprobes.c
+++ b/probes/lttng-uprobes.c
@@ -161,7 +161,7 @@ int lttng_uprobes_add_callsite(struct lttng_event *event,
}
/* Ensure the memory we just allocated don't trigger page faults. */
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
uprobe_handler->event = event;
uprobe_handler->up_consumer.handler = lttng_uprobes_handler_pre;
diff --git a/probes/lttng.c b/probes/lttng.c
index 383202c..05bc138 100644
--- a/probes/lttng.c
+++ b/probes/lttng.c
@@ -116,7 +116,7 @@ int __init lttng_logger_init(void)
{
int ret = 0;
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
/* /dev/lttng-logger */
ret = misc_register(&logger_dev);
diff --git a/tests/probes/lttng-test.c b/tests/probes/lttng-test.c
index e347639..b450e7d 100644
--- a/tests/probes/lttng-test.c
+++ b/tests/probes/lttng-test.c
@@ -97,7 +97,7 @@ int __init lttng_test_init(void)
int ret = 0;
(void) wrapper_lttng_fixup_sig(THIS_MODULE);
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
lttng_test_filter_event_dentry =
proc_create_data(LTTNG_TEST_FILTER_EVENT_FILE,
S_IRUGO | S_IWUGO, NULL,
diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h
index 0c3eb86..54715b5 100644
--- a/wrapper/vmalloc.h
+++ b/wrapper/vmalloc.h
@@ -21,8 +21,35 @@
#include <linux/kallsyms.h>
#include <wrapper/kallsyms.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0))
+
+static inline
+void wrapper_vmalloc_sync_mappings(void)
+{
+ void (*vmalloc_sync_mappings_sym)(void);
+
+ vmalloc_sync_mappings_sym = (void *) kallsyms_lookup_funcptr("vmalloc_sync_mappings");
+ if (vmalloc_sync_mappings_sym) {
+ vmalloc_sync_mappings_sym();
+ } else {
+#ifdef CONFIG_X86
+ /*
+ * Only x86 needs vmalloc_sync_mappings to make sure LTTng does not
+ * trigger recursive page faults.
+ */
+ printk_once(KERN_WARNING "LTTng: vmalloc_sync_mappings symbol lookup failed.\n");
+ printk_once(KERN_WARNING "Page fault handler and NMI tracing might trigger faults.\n");
+#endif
+ }
+}
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
+/*
+ * Map vmalloc_sync_mappings to vmalloc_sync_all() on kernels before 5.7.
+ */
static inline
-void wrapper_vmalloc_sync_all(void)
+void wrapper_vmalloc_sync_mappings(void)
{
void (*vmalloc_sync_all_sym)(void);
@@ -40,13 +67,29 @@ void wrapper_vmalloc_sync_all(void)
#endif
}
}
+
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
#else
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0))
+
+static inline
+void wrapper_vmalloc_sync_mappings(void)
+{
+ return vmalloc_sync_mappings();
+}
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
static inline
-void wrapper_vmalloc_sync_all(void)
+void wrapper_vmalloc_sync_mappings(void)
{
return vmalloc_sync_all();
}
+
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0))
@@ -61,7 +104,7 @@ void *lttng_kvmalloc_node(unsigned long size, gfp_t flags, int node)
* Make sure we don't trigger recursive page faults in the
* tracing fast path.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
}
return ret;
}
--
2.17.1

32
meta/recipes-kernel/lttng/lttng-modules/0002-Fix-missing-wrapper-rename-to-wrapper_vmalloc_sync_m.patch Normal file
View File

@@ -0,0 +1,32 @@
From 4d1817c129310945bf0b8227ebc0fbb4f6299dc7 Mon Sep 17 00:00:00 2001
From: Michael Jeanson <mjeanson@efficios.com>
Date: Wed, 6 May 2020 11:03:32 -0400
Subject: [PATCH 2/4] Fix: missing wrapper rename to
wrapper_vmalloc_sync_mappings
Upstream-Status: Backport [https://github.com/lttng/lttng-modules/commit/c1ba644f2edf6a5bc030111ce4167a8798cc1053]
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Idf7082a980c5a604bfef5c69906678b5083a9bbf
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
---
wrapper/vmalloc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h
index 54715b5..5d0b389 100644
--- a/wrapper/vmalloc.h
+++ b/wrapper/vmalloc.h
@@ -216,7 +216,7 @@ void *lttng_kvmalloc_node(unsigned long size, gfp_t flags, int node)
* Make sure we don't trigger recursive page faults in the
* tracing fast path.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
}
return ret;
}
--
2.17.1

88
meta/recipes-kernel/lttng/lttng-modules/0003-Fix-Use-vmalloc_sync_mappings-on-kernel-5.6-as-well.patch Normal file
View File

@@ -0,0 +1,88 @@
From 23cfd7b53ec1521d3c23ceddfda49352c2d349dc Mon Sep 17 00:00:00 2001
From: Ovidiu Panait <ovidiu.panait@windriver.com>
Date: Thu, 14 May 2020 13:05:24 +0300
Subject: [PATCH 3/4] Fix: Use vmalloc_sync_mappings on kernel 5.6 as well
Upstream commit [1], that got rid of vmalloc_sync_all and introduced
vmalloc_sync_mappings, is a v5.6 commit:
$ git tag --contains 763802b53a427ed3cbd419dbba255c414fdd9e7c
v5.6
v5.6-rc7
v5.7-rc1
v5.7-rc2
v5.7-rc3
Extend the LINUX_VERSION_CODE check to v5.6 to fix the following warnings:
...
[ 483.242037] LTTng: vmalloc_sync_all symbol lookup failed.
[ 483.257056] Page fault handler and NMI tracing might trigger faults.
...
[1] https://github.com/torvalds/linux/commit/763802b53a427ed3cbd419dbba255c414fdd9e7c
Upstream-Status: Backport [https://github.com/lttng/lttng-modules/commit/da356b324dfc160e09b8966b691792037badf455]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
---
wrapper/vmalloc.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h
index 5d0b389..d905f60 100644
--- a/wrapper/vmalloc.h
+++ b/wrapper/vmalloc.h
@@ -21,7 +21,7 @@
#include <linux/kallsyms.h>
#include <wrapper/kallsyms.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
static inline
void wrapper_vmalloc_sync_mappings(void)
@@ -43,7 +43,7 @@ void wrapper_vmalloc_sync_mappings(void)
}
}
-#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)) */
/*
* Map vmalloc_sync_mappings to vmalloc_sync_all() on kernels before 5.7.
@@ -68,11 +68,11 @@ void wrapper_vmalloc_sync_mappings(void)
}
}
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)) */
#else
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
static inline
void wrapper_vmalloc_sync_mappings(void)
@@ -80,7 +80,7 @@ void wrapper_vmalloc_sync_mappings(void)
return vmalloc_sync_mappings();
}
-#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)) */
static inline
void wrapper_vmalloc_sync_mappings(void)
@@ -88,7 +88,7 @@ void wrapper_vmalloc_sync_mappings(void)
return vmalloc_sync_all();
}
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)) */
#endif
--
2.17.1

67
meta/recipes-kernel/lttng/lttng-modules/0004-Update-Use-vmalloc_sync_mappings-for-stable-kernels.patch Normal file
View File

@@ -0,0 +1,67 @@
From f419315f28a1da656c4faa8a852a2928ce38c72d Mon Sep 17 00:00:00 2001
From: Ovidiu Panait <ovidiu.panait@windriver.com>
Date: Thu, 14 May 2020 14:27:17 +0300
Subject: [PATCH 4/4] Update: Use vmalloc_sync_mappings for stable kernels
Starting from v5.4.28/v5.2.37/v4.19.113/v4.14.175/v4.9.218/v4.4.218, stable
kernel branches backported v5.6 upstream commit [1], causing the following
warnings:
...
[ 483.242037] LTTng: vmalloc_sync_all symbol lookup failed.
[ 483.257056] Page fault handler and NMI tracing might trigger faults.
...
Extend check for vmalloc_sync_mappings for stable kernels as well.
[1] https://github.com/torvalds/linux/commit/763802b53a427ed3cbd419dbba255c414fdd9e7c
[ Edit: minor coding style fix by Mathieu Desnoyers. ]
Upstream-Status: Backport [https://github.com/lttng/lttng-modules/commit/5939591f87dc291bc858caf72decfb8569d802e3]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
---
wrapper/vmalloc.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h
index d905f60..c7538ae 100644
--- a/wrapper/vmalloc.h
+++ b/wrapper/vmalloc.h
@@ -20,8 +20,15 @@
#include <linux/kallsyms.h>
#include <wrapper/kallsyms.h>
+#include <lttng-kernel-version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0) \
+ || LTTNG_KERNEL_RANGE(5,4,28, 5,5,0) \
+ || LTTNG_KERNEL_RANGE(5,2,37, 5,3,0) \
+ || LTTNG_KERNEL_RANGE(4,19,113, 4,20,0) \
+ || LTTNG_KERNEL_RANGE(4,14,175, 4,15,0) \
+ || LTTNG_KERNEL_RANGE(4,9,218, 4,10,0) \
+ || LTTNG_KERNEL_RANGE(4,4,218, 4,5,0))
static inline
void wrapper_vmalloc_sync_mappings(void)
@@ -72,7 +79,13 @@ void wrapper_vmalloc_sync_mappings(void)
#else
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0) \
+ || LTTNG_KERNEL_RANGE(5,4,28, 5,5,0) \
+ || LTTNG_KERNEL_RANGE(5,2,37, 5,3,0) \
+ || LTTNG_KERNEL_RANGE(4,19,113, 4,20,0) \
+ || LTTNG_KERNEL_RANGE(4,14,175, 4,15,0) \
+ || LTTNG_KERNEL_RANGE(4,9,218, 4,10,0) \
+ || LTTNG_KERNEL_RANGE(4,4,218, 4,5,0))
static inline
void wrapper_vmalloc_sync_mappings(void)
--
2.17.1

4
meta/recipes-kernel/lttng/lttng-modules_2.12.0.bb
View File

@@ -11,6 +11,10 @@ COMPATIBLE_HOST = '(x86_64|i.86|powerpc|aarch64|mips|nios2|arm|riscv).*-linux'
SRC_URI = "https://lttng.org/files/${BPN}/${BPN}-${PV}.tar.bz2 \
file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch \
file://BUILD_RUNTIME_BUG_ON-vs-gcc7.patch \
file://0001-Update-for-kernel-5.7-use-vmalloc_sync_mappings-on-k.patch \
file://0002-Fix-missing-wrapper-rename-to-wrapper_vmalloc_sync_m.patch \
file://0003-Fix-Use-vmalloc_sync_mappings-on-kernel-5.6-as-well.patch \
file://0004-Update-Use-vmalloc_sync_mappings-for-stable-kernels.patch \
"
SRC_URI[md5sum] = "be252df5013ea03894921d0b493c7b6c"