diff options
Diffstat (limited to 'debian/patches-rt/BPF-Disable-on-PREEMPT_RT.patch')
| -rw-r--r-- | debian/patches-rt/BPF-Disable-on-PREEMPT_RT.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/debian/patches-rt/BPF-Disable-on-PREEMPT_RT.patch b/debian/patches-rt/BPF-Disable-on-PREEMPT_RT.patch new file mode 100644 index 000000000..8a11d4e78 --- /dev/null +++ b/debian/patches-rt/BPF-Disable-on-PREEMPT_RT.patch @@ -0,0 +1,36 @@ +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Thu, 10 Oct 2019 16:54:45 +0200 +Subject: [PATCH] BPF: Disable on PREEMPT_RT +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz + +Disable BPF on PREEMPT_RT because +- it allocates and frees memory in atomic context +- it uses up_read_non_owner() +- BPF_PROG_RUN() expects to be invoked in non-preemptible context + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + init/Kconfig | 1 + + net/kcm/Kconfig | 1 + + 2 files changed, 2 insertions(+) + +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -1629,6 +1629,7 @@ config KALLSYMS_BASE_RELATIVE + # syscall, maps, verifier + config BPF_SYSCALL + bool "Enable bpf() system call" ++ depends on !PREEMPT_RT + select BPF + select IRQ_WORK + default n +--- a/net/kcm/Kconfig ++++ b/net/kcm/Kconfig +@@ -3,6 +3,7 @@ + config AF_KCM + tristate "KCM sockets" + depends on INET ++ depends on !PREEMPT_RT + select BPF_SYSCALL + select STREAM_PARSER + ---help--- |