[RFC] linux: Disable tracers

  Since these server no use on an IPFire machine in production, but may be
leveraged by attackers (and sources such as KSPP recommend disabling
them), drop all the tracers.

Changes to configurations aside x86_64 have been simulated.

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
---
 config/kernel/kernel.config.aarch64-ipfire | 58 +-------------------
 config/kernel/kernel.config.armv6l-ipfire  | 58 +-------------------
 config/kernel/kernel.config.riscv64-ipfire | 58 +-------------------
 config/kernel/kernel.config.x86_64-ipfire  | 64 +---------------------
 4 files changed, 4 insertions(+), 234 deletions(-)
  

Hello,

This disables a lot of debugging stuff - including strace.

I am not sure if that is your intention, but if you want to go ahead with this configuration, we would have to have a debug kernel so that I can continue doing my job :)

-Michael

> On 6 Aug 2022, at 09:26, Peter Müller <peter.mueller@ipfire.org> wrote:
> 
> Since these server no use on an IPFire machine in production, but may be
> leveraged by attackers (and sources such as KSPP recommend disabling
> them), drop all the tracers.
> 
> Changes to configurations aside x86_64 have been simulated.
> 
> Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
> ---
> config/kernel/kernel.config.aarch64-ipfire | 58 +-------------------
> config/kernel/kernel.config.armv6l-ipfire  | 58 +-------------------
> config/kernel/kernel.config.riscv64-ipfire | 58 +-------------------
> config/kernel/kernel.config.x86_64-ipfire  | 64 +---------------------
> 4 files changed, 4 insertions(+), 234 deletions(-)
> 
> diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire
> index 6a0ea681d..c994c0dd2 100644
> --- a/config/kernel/kernel.config.aarch64-ipfire
> +++ b/config/kernel/kernel.config.aarch64-ipfire
> @@ -127,8 +127,6 @@ CONFIG_TREE_RCU=y
> # CONFIG_RCU_EXPERT is not set
> CONFIG_SRCU=y
> CONFIG_TREE_SRCU=y
> -CONFIG_TASKS_RCU_GENERIC=y
> -CONFIG_TASKS_RUDE_RCU=y
> CONFIG_RCU_STALL_COMMON=y
> CONFIG_RCU_NEED_SEGCBLIST=y
> # end of RCU Subsystem
> @@ -254,7 +252,6 @@ CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
> CONFIG_SLUB_CPU_PARTIAL=y
> CONFIG_SYSTEM_DATA_VERIFICATION=y
> # CONFIG_PROFILING is not set
> -CONFIG_TRACEPOINTS=y
> # end of General setup
> 
> CONFIG_ARM64=y
> @@ -648,7 +645,6 @@ CONFIG_CRYPTO_AES_ARM64_BS=m
> # CONFIG_KPROBES is not set
> CONFIG_JUMP_LABEL=y
> CONFIG_STATIC_KEYS_SELFTEST=y
> -CONFIG_UPROBES=y
> CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
> CONFIG_HAVE_KPROBES=y
> CONFIG_HAVE_KRETPROBES=y
> @@ -1634,7 +1630,6 @@ CONFIG_NET_FLOW_LIMIT=y
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_DROP_MONITOR is not set
> # end of Network testing
> # end of Networking options
> 
> @@ -2973,12 +2968,10 @@ CONFIG_ADM8211=m
> CONFIG_ATH_COMMON=m
> CONFIG_WLAN_VENDOR_ATH=y
> CONFIG_ATH_DEBUG=y
> -# CONFIG_ATH_TRACEPOINTS is not set
> CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS=y
> CONFIG_ATH_REG_DYNAMIC_USER_CERT_TESTING=y
> CONFIG_ATH5K=m
> # CONFIG_ATH5K_DEBUG is not set
> -# CONFIG_ATH5K_TRACER is not set
> CONFIG_ATH5K_PCI=y
> # CONFIG_ATH5K_TEST_CHANNELS is not set
> CONFIG_ATH9K_HW=m
> @@ -3013,14 +3006,12 @@ CONFIG_ATH10K_SDIO=m
> CONFIG_ATH10K_USB=m
> CONFIG_ATH10K_DEBUG=y
> # CONFIG_ATH10K_DEBUGFS is not set
> -# CONFIG_ATH10K_TRACING is not set
> CONFIG_ATH10K_DFS_CERTIFIED=y
> CONFIG_WCN36XX=m
> # CONFIG_WCN36XX_DEBUGFS is not set
> CONFIG_ATH11K=m
> CONFIG_ATH11K_PCI=m
> # CONFIG_ATH11K_DEBUG is not set
> -# CONFIG_ATH11K_TRACING is not set
> CONFIG_WLAN_VENDOR_ATMEL=y
> CONFIG_ATMEL=m
> CONFIG_PCI_ATMEL=m
> @@ -3099,7 +3090,6 @@ CONFIG_IWLWIFI_OPMODE_MODULAR=y
> # Debugging Options
> #
> # CONFIG_IWLWIFI_DEBUG is not set
> -# CONFIG_IWLWIFI_DEVICE_TRACING is not set
> # end of Debugging Options
> 
> CONFIG_WLAN_VENDOR_INTERSIL=y
> @@ -7420,7 +7410,6 @@ CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
> CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
> # CONFIG_PSTORE_CONSOLE is not set
> # CONFIG_PSTORE_PMSG is not set
> -# CONFIG_PSTORE_FTRACE is not set
> # CONFIG_PSTORE_RAM is not set
> # CONFIG_PSTORE_BLK is not set
> # CONFIG_SYSV_FS is not set
> @@ -7814,8 +7803,6 @@ CONFIG_SYSTEM_TRUSTED_KEYS=""
> # CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
> # end of Certificates for signature checking
> 
> -CONFIG_BINARY_PRINTF=y
> -
> #
> # Library routines
> #
> @@ -8036,7 +8023,6 @@ CONFIG_DEBUG_MISC=y
> # CONFIG_DEBUG_PAGEALLOC is not set
> # CONFIG_PAGE_OWNER is not set
> # CONFIG_PAGE_POISONING is not set
> -# CONFIG_DEBUG_PAGE_REF is not set
> # CONFIG_DEBUG_RODATA_TEST is not set
> CONFIG_ARCH_HAS_DEBUG_WX=y
> CONFIG_DEBUG_WX=y
> @@ -8147,7 +8133,6 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=21
> # CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
> # CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
> # CONFIG_LATENCYTOP is not set
> -CONFIG_NOP_TRACER=y
> CONFIG_HAVE_FUNCTION_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
> CONFIG_HAVE_DYNAMIC_FTRACE=y
> @@ -8155,49 +8140,8 @@ CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
> CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
> CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
> CONFIG_HAVE_C_RECORDMCOUNT=y
> -CONFIG_TRACER_MAX_TRACE=y
> -CONFIG_TRACE_CLOCK=y
> -CONFIG_RING_BUFFER=y
> -CONFIG_EVENT_TRACING=y
> -CONFIG_CONTEXT_SWITCH_TRACER=y
> -CONFIG_TRACING=y
> -CONFIG_GENERIC_TRACER=y
> CONFIG_TRACING_SUPPORT=y
> -CONFIG_FTRACE=y
> -# CONFIG_BOOTTIME_TRACING is not set
> -CONFIG_FUNCTION_TRACER=y
> -CONFIG_FUNCTION_GRAPH_TRACER=y
> -CONFIG_DYNAMIC_FTRACE=y
> -CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
> -CONFIG_FUNCTION_PROFILER=y
> -CONFIG_STACK_TRACER=y
> -# CONFIG_IRQSOFF_TRACER is not set
> -CONFIG_SCHED_TRACER=y
> -# CONFIG_HWLAT_TRACER is not set
> -# CONFIG_OSNOISE_TRACER is not set
> -# CONFIG_TIMERLAT_TRACER is not set
> -# CONFIG_FTRACE_SYSCALLS is not set
> -CONFIG_TRACER_SNAPSHOT=y
> -# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
> -CONFIG_BRANCH_PROFILE_NONE=y
> -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> -# CONFIG_BLK_DEV_IO_TRACE is not set
> -CONFIG_UPROBE_EVENTS=y
> -CONFIG_DYNAMIC_EVENTS=y
> -CONFIG_PROBE_EVENTS=y
> -CONFIG_FTRACE_MCOUNT_RECORD=y
> -CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY=y
> -# CONFIG_SYNTH_EVENTS is not set
> -# CONFIG_HIST_TRIGGERS is not set
> -# CONFIG_TRACE_EVENT_INJECT is not set
> -# CONFIG_TRACEPOINT_BENCHMARK is not set
> -CONFIG_RING_BUFFER_BENCHMARK=m
> -# CONFIG_TRACE_EVAL_MAP_FILE is not set
> -# CONFIG_FTRACE_RECORD_RECURSION is not set
> -# CONFIG_FTRACE_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
> -# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
> +# CONFIG_FTRACE is not set
> # CONFIG_SAMPLES is not set
> CONFIG_STRICT_DEVMEM=y
> CONFIG_IO_STRICT_DEVMEM=y
> diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire
> index 9d2776bd2..5fe1bd0e2 100644
> --- a/config/kernel/kernel.config.armv6l-ipfire
> +++ b/config/kernel/kernel.config.armv6l-ipfire
> @@ -134,8 +134,6 @@ CONFIG_TREE_RCU=y
> # CONFIG_RCU_EXPERT is not set
> CONFIG_SRCU=y
> CONFIG_TREE_SRCU=y
> -CONFIG_TASKS_RCU_GENERIC=y
> -CONFIG_TASKS_RUDE_RCU=y
> CONFIG_RCU_STALL_COMMON=y
> CONFIG_RCU_NEED_SEGCBLIST=y
> # end of RCU Subsystem
> @@ -257,7 +255,6 @@ CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
> CONFIG_SLUB_CPU_PARTIAL=y
> CONFIG_SYSTEM_DATA_VERIFICATION=y
> # CONFIG_PROFILING is not set
> -CONFIG_TRACEPOINTS=y
> # end of General setup
> 
> CONFIG_ARM=y
> @@ -740,7 +737,6 @@ CONFIG_AS_VFP_VMRS_FPINST=y
> # CONFIG_KPROBES is not set
> CONFIG_JUMP_LABEL=y
> CONFIG_STATIC_KEYS_SELFTEST=y
> -CONFIG_UPROBES=y
> CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
> CONFIG_ARCH_USE_BUILTIN_BSWAP=y
> CONFIG_HAVE_KPROBES=y
> @@ -1644,7 +1640,6 @@ CONFIG_NET_FLOW_LIMIT=y
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_DROP_MONITOR is not set
> # end of Network testing
> # end of Networking options
> 
> @@ -2968,7 +2963,6 @@ CONFIG_ADM8211=m
> CONFIG_ATH_COMMON=m
> CONFIG_WLAN_VENDOR_ATH=y
> CONFIG_ATH_DEBUG=y
> -# CONFIG_ATH_TRACEPOINTS is not set
> CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS=y
> CONFIG_ATH_REG_DYNAMIC_USER_CERT_TESTING=y
> # CONFIG_ATH5K is not set
> @@ -3005,14 +2999,12 @@ CONFIG_ATH10K_SDIO=m
> CONFIG_ATH10K_USB=m
> CONFIG_ATH10K_DEBUG=y
> # CONFIG_ATH10K_DEBUGFS is not set
> -# CONFIG_ATH10K_TRACING is not set
> CONFIG_ATH10K_DFS_CERTIFIED=y
> CONFIG_WCN36XX=m
> # CONFIG_WCN36XX_DEBUGFS is not set
> CONFIG_ATH11K=m
> CONFIG_ATH11K_PCI=m
> # CONFIG_ATH11K_DEBUG is not set
> -# CONFIG_ATH11K_TRACING is not set
> CONFIG_WLAN_VENDOR_ATMEL=y
> CONFIG_ATMEL=m
> CONFIG_PCI_ATMEL=m
> @@ -3091,7 +3083,6 @@ CONFIG_IWLWIFI_OPMODE_MODULAR=y
> # Debugging Options
> #
> # CONFIG_IWLWIFI_DEBUG is not set
> -# CONFIG_IWLWIFI_DEVICE_TRACING is not set
> # end of Debugging Options
> 
> CONFIG_WLAN_VENDOR_INTERSIL=y
> @@ -7434,7 +7425,6 @@ CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
> CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
> # CONFIG_PSTORE_CONSOLE is not set
> # CONFIG_PSTORE_PMSG is not set
> -# CONFIG_PSTORE_FTRACE is not set
> # CONFIG_PSTORE_RAM is not set
> # CONFIG_PSTORE_BLK is not set
> # CONFIG_SYSV_FS is not set
> @@ -7824,8 +7814,6 @@ CONFIG_SYSTEM_TRUSTED_KEYS=""
> # CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
> # end of Certificates for signature checking
> 
> -CONFIG_BINARY_PRINTF=y
> -
> #
> # Library routines
> #
> @@ -8026,7 +8014,6 @@ CONFIG_DEBUG_MISC=y
> # CONFIG_DEBUG_PAGEALLOC is not set
> # CONFIG_PAGE_OWNER is not set
> # CONFIG_PAGE_POISONING is not set
> -# CONFIG_DEBUG_PAGE_REF is not set
> # CONFIG_DEBUG_RODATA_TEST is not set
> # CONFIG_DEBUG_WX is not set
> # CONFIG_DEBUG_OBJECTS is not set
> @@ -8122,7 +8109,6 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=21
> # CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
> # CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
> # CONFIG_LATENCYTOP is not set
> -CONFIG_NOP_TRACER=y
> CONFIG_HAVE_FUNCTION_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
> CONFIG_HAVE_DYNAMIC_FTRACE=y
> @@ -8130,50 +8116,8 @@ CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
> CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
> CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
> CONFIG_HAVE_C_RECORDMCOUNT=y
> -CONFIG_TRACER_MAX_TRACE=y
> -CONFIG_TRACE_CLOCK=y
> -CONFIG_RING_BUFFER=y
> -CONFIG_EVENT_TRACING=y
> -CONFIG_CONTEXT_SWITCH_TRACER=y
> -CONFIG_TRACING=y
> -CONFIG_GENERIC_TRACER=y
> CONFIG_TRACING_SUPPORT=y
> -CONFIG_FTRACE=y
> -# CONFIG_BOOTTIME_TRACING is not set
> -CONFIG_FUNCTION_TRACER=y
> -CONFIG_FUNCTION_GRAPH_TRACER=y
> -CONFIG_DYNAMIC_FTRACE=y
> -CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
> -CONFIG_FUNCTION_PROFILER=y
> -CONFIG_STACK_TRACER=y
> -# CONFIG_IRQSOFF_TRACER is not set
> -CONFIG_SCHED_TRACER=y
> -# CONFIG_HWLAT_TRACER is not set
> -# CONFIG_OSNOISE_TRACER is not set
> -# CONFIG_TIMERLAT_TRACER is not set
> -# CONFIG_FTRACE_SYSCALLS is not set
> -CONFIG_TRACER_SNAPSHOT=y
> -# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
> -CONFIG_BRANCH_PROFILE_NONE=y
> -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> -# CONFIG_PROFILE_ALL_BRANCHES is not set
> -# CONFIG_BLK_DEV_IO_TRACE is not set
> -CONFIG_UPROBE_EVENTS=y
> -CONFIG_DYNAMIC_EVENTS=y
> -CONFIG_PROBE_EVENTS=y
> -CONFIG_FTRACE_MCOUNT_RECORD=y
> -CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT=y
> -# CONFIG_SYNTH_EVENTS is not set
> -# CONFIG_HIST_TRIGGERS is not set
> -# CONFIG_TRACE_EVENT_INJECT is not set
> -# CONFIG_TRACEPOINT_BENCHMARK is not set
> -CONFIG_RING_BUFFER_BENCHMARK=m
> -# CONFIG_TRACE_EVAL_MAP_FILE is not set
> -# CONFIG_FTRACE_RECORD_RECURSION is not set
> -# CONFIG_FTRACE_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
> -# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
> +# CONFIG_FTRACE is not set
> # CONFIG_SAMPLES is not set
> CONFIG_STRICT_DEVMEM=y
> CONFIG_IO_STRICT_DEVMEM=y
> diff --git a/config/kernel/kernel.config.riscv64-ipfire b/config/kernel/kernel.config.riscv64-ipfire
> index c379447e7..d1b8a4f78 100644
> --- a/config/kernel/kernel.config.riscv64-ipfire
> +++ b/config/kernel/kernel.config.riscv64-ipfire
> @@ -119,8 +119,6 @@ CONFIG_TREE_RCU=y
> # CONFIG_RCU_EXPERT is not set
> CONFIG_SRCU=y
> CONFIG_TREE_SRCU=y
> -CONFIG_TASKS_RCU_GENERIC=y
> -CONFIG_TASKS_RUDE_RCU=y
> CONFIG_RCU_STALL_COMMON=y
> CONFIG_RCU_NEED_SEGCBLIST=y
> # end of RCU Subsystem
> @@ -237,7 +235,6 @@ CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
> CONFIG_SLUB_CPU_PARTIAL=y
> CONFIG_SYSTEM_DATA_VERIFICATION=y
> # CONFIG_PROFILING is not set
> -CONFIG_TRACEPOINTS=y
> # end of General setup
> 
> CONFIG_64BIT=y
> @@ -346,7 +343,6 @@ CONFIG_PM_CLK=y
> # CONFIG_KPROBES is not set
> CONFIG_JUMP_LABEL=y
> CONFIG_STATIC_KEYS_SELFTEST=y
> -CONFIG_UPROBES=y
> CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
> CONFIG_HAVE_KPROBES=y
> CONFIG_HAVE_KRETPROBES=y
> @@ -1239,7 +1235,6 @@ CONFIG_NET_FLOW_LIMIT=y
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_DROP_MONITOR is not set
> # end of Network testing
> # end of Networking options
> 
> @@ -2474,12 +2469,10 @@ CONFIG_ADM8211=m
> CONFIG_ATH_COMMON=m
> CONFIG_WLAN_VENDOR_ATH=y
> CONFIG_ATH_DEBUG=y
> -# CONFIG_ATH_TRACEPOINTS is not set
> CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS=y
> CONFIG_ATH_REG_DYNAMIC_USER_CERT_TESTING=y
> CONFIG_ATH5K=m
> CONFIG_ATH5K_DEBUG=y
> -# CONFIG_ATH5K_TRACER is not set
> CONFIG_ATH5K_PCI=y
> # CONFIG_ATH5K_TEST_CHANNELS is not set
> CONFIG_ATH9K_HW=m
> @@ -2507,7 +2500,6 @@ CONFIG_CARL9170_HWRNG=y
> CONFIG_AR5523=m
> CONFIG_WIL6210=m
> CONFIG_WIL6210_ISR_COR=y
> -CONFIG_WIL6210_TRACING=y
> # CONFIG_WIL6210_DEBUGFS is not set
> CONFIG_ATH10K=m
> CONFIG_ATH10K_CE=y
> @@ -2517,14 +2509,12 @@ CONFIG_ATH10K_SDIO=m
> CONFIG_ATH10K_USB=m
> CONFIG_ATH10K_DEBUG=y
> # CONFIG_ATH10K_DEBUGFS is not set
> -# CONFIG_ATH10K_TRACING is not set
> CONFIG_ATH10K_DFS_CERTIFIED=y
> CONFIG_WCN36XX=m
> # CONFIG_WCN36XX_DEBUGFS is not set
> CONFIG_ATH11K=m
> CONFIG_ATH11K_PCI=m
> # CONFIG_ATH11K_DEBUG is not set
> -# CONFIG_ATH11K_TRACING is not set
> CONFIG_WLAN_VENDOR_ATMEL=y
> CONFIG_ATMEL=m
> CONFIG_PCI_ATMEL=m
> @@ -2605,7 +2595,6 @@ CONFIG_IWLWIFI_OPMODE_MODULAR=y
> # Debugging Options
> #
> # CONFIG_IWLWIFI_DEBUG is not set
> -# CONFIG_IWLWIFI_DEVICE_TRACING is not set
> # end of Debugging Options
> 
> CONFIG_WLAN_VENDOR_INTERSIL=y
> @@ -6058,7 +6047,6 @@ CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
> CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
> # CONFIG_PSTORE_CONSOLE is not set
> # CONFIG_PSTORE_PMSG is not set
> -# CONFIG_PSTORE_FTRACE is not set
> # CONFIG_PSTORE_RAM is not set
> # CONFIG_PSTORE_BLK is not set
> # CONFIG_SYSV_FS is not set
> @@ -6452,8 +6440,6 @@ CONFIG_SYSTEM_TRUSTED_KEYS=""
> # CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
> # end of Certificates for signature checking
> 
> -CONFIG_BINARY_PRINTF=y
> -
> #
> # Library routines
> #
> @@ -6624,7 +6610,6 @@ CONFIG_DEBUG_MISC=y
> # CONFIG_DEBUG_PAGEALLOC is not set
> # CONFIG_PAGE_OWNER is not set
> CONFIG_PAGE_POISONING=y
> -# CONFIG_DEBUG_PAGE_REF is not set
> # CONFIG_DEBUG_RODATA_TEST is not set
> CONFIG_ARCH_HAS_DEBUG_WX=y
> CONFIG_DEBUG_WX=y
> @@ -6735,55 +6720,14 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=60
> # CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
> # CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
> # CONFIG_LATENCYTOP is not set
> -CONFIG_NOP_TRACER=y
> CONFIG_HAVE_FUNCTION_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
> CONFIG_HAVE_DYNAMIC_FTRACE=y
> CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
> CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
> CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
> -CONFIG_TRACER_MAX_TRACE=y
> -CONFIG_TRACE_CLOCK=y
> -CONFIG_RING_BUFFER=y
> -CONFIG_EVENT_TRACING=y
> -CONFIG_CONTEXT_SWITCH_TRACER=y
> -CONFIG_TRACING=y
> -CONFIG_GENERIC_TRACER=y
> CONFIG_TRACING_SUPPORT=y
> -CONFIG_FTRACE=y
> -# CONFIG_BOOTTIME_TRACING is not set
> -CONFIG_FUNCTION_TRACER=y
> -CONFIG_FUNCTION_GRAPH_TRACER=y
> -CONFIG_DYNAMIC_FTRACE=y
> -CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
> -CONFIG_FUNCTION_PROFILER=y
> -CONFIG_STACK_TRACER=y
> -# CONFIG_IRQSOFF_TRACER is not set
> -CONFIG_SCHED_TRACER=y
> -# CONFIG_HWLAT_TRACER is not set
> -# CONFIG_OSNOISE_TRACER is not set
> -# CONFIG_TIMERLAT_TRACER is not set
> -CONFIG_FTRACE_SYSCALLS=y
> -CONFIG_TRACER_SNAPSHOT=y
> -# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
> -CONFIG_BRANCH_PROFILE_NONE=y
> -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> -# CONFIG_BLK_DEV_IO_TRACE is not set
> -CONFIG_UPROBE_EVENTS=y
> -CONFIG_DYNAMIC_EVENTS=y
> -CONFIG_PROBE_EVENTS=y
> -CONFIG_FTRACE_MCOUNT_RECORD=y
> -CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT=y
> -# CONFIG_SYNTH_EVENTS is not set
> -# CONFIG_TRACE_EVENT_INJECT is not set
> -# CONFIG_TRACEPOINT_BENCHMARK is not set
> -CONFIG_RING_BUFFER_BENCHMARK=m
> -# CONFIG_TRACE_EVAL_MAP_FILE is not set
> -# CONFIG_FTRACE_RECORD_RECURSION is not set
> -# CONFIG_FTRACE_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
> -# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
> +# CONFIG_FTRACE is not set
> # CONFIG_SAMPLES is not set
> CONFIG_STRICT_DEVMEM=y
> CONFIG_IO_STRICT_DEVMEM=y
> diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire
> index f58bf4b2f..0b1e6b78a 100644
> --- a/config/kernel/kernel.config.x86_64-ipfire
> +++ b/config/kernel/kernel.config.x86_64-ipfire
> @@ -147,8 +147,6 @@ CONFIG_TREE_RCU=y
> # CONFIG_RCU_EXPERT is not set
> CONFIG_SRCU=y
> CONFIG_TREE_SRCU=y
> -CONFIG_TASKS_RCU_GENERIC=y
> -CONFIG_TASKS_RUDE_RCU=y
> CONFIG_RCU_STALL_COMMON=y
> CONFIG_RCU_NEED_SEGCBLIST=y
> # end of RCU Subsystem
> @@ -277,7 +275,6 @@ CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
> CONFIG_SLUB_CPU_PARTIAL=y
> CONFIG_SYSTEM_DATA_VERIFICATION=y
> # CONFIG_PROFILING is not set
> -CONFIG_TRACEPOINTS=y
> # end of General setup
> 
> CONFIG_64BIT=y
> @@ -476,7 +473,6 @@ CONFIG_LEGACY_VSYSCALL_NONE=y
> # CONFIG_CMDLINE_BOOL is not set
> # CONFIG_MODIFY_LDT_SYSCALL is not set
> CONFIG_HAVE_LIVEPATCH=y
> -# CONFIG_LIVEPATCH is not set
> # end of Processor type and features
> 
> CONFIG_CC_HAS_SLS=y
> @@ -664,7 +660,6 @@ CONFIG_KVM_INTEL=m
> CONFIG_KVM_AMD=m
> CONFIG_KVM_AMD_SEV=y
> # CONFIG_KVM_XEN is not set
> -CONFIG_KVM_MMU_AUDIT=y
> CONFIG_AS_AVX512=y
> CONFIG_AS_SHA1_NI=y
> CONFIG_AS_SHA256_NI=y
> @@ -679,7 +674,6 @@ CONFIG_GENERIC_ENTRY=y
> CONFIG_JUMP_LABEL=y
> CONFIG_STATIC_KEYS_SELFTEST=y
> # CONFIG_STATIC_CALL_SELFTEST is not set
> -CONFIG_UPROBES=y
> CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
> CONFIG_ARCH_USE_BUILTIN_BSWAP=y
> CONFIG_USER_RETURN_NOTIFIER=y
> @@ -1650,7 +1644,6 @@ CONFIG_NET_FLOW_LIMIT=y
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_DROP_MONITOR is not set
> # end of Network testing
> # end of Networking options
> 
> @@ -2942,12 +2935,10 @@ CONFIG_ADM8211=m
> CONFIG_ATH_COMMON=m
> CONFIG_WLAN_VENDOR_ATH=y
> CONFIG_ATH_DEBUG=y
> -# CONFIG_ATH_TRACEPOINTS is not set
> CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS=y
> CONFIG_ATH_REG_DYNAMIC_USER_CERT_TESTING=y
> CONFIG_ATH5K=m
> CONFIG_ATH5K_DEBUG=y
> -# CONFIG_ATH5K_TRACER is not set
> CONFIG_ATH5K_PCI=y
> # CONFIG_ATH5K_TEST_CHANNELS is not set
> CONFIG_ATH9K_HW=m
> @@ -2975,7 +2966,6 @@ CONFIG_CARL9170_HWRNG=y
> CONFIG_AR5523=m
> CONFIG_WIL6210=m
> CONFIG_WIL6210_ISR_COR=y
> -CONFIG_WIL6210_TRACING=y
> # CONFIG_WIL6210_DEBUGFS is not set
> CONFIG_ATH10K=m
> CONFIG_ATH10K_CE=y
> @@ -2984,14 +2974,12 @@ CONFIG_ATH10K_SDIO=m
> CONFIG_ATH10K_USB=m
> CONFIG_ATH10K_DEBUG=y
> # CONFIG_ATH10K_DEBUGFS is not set
> -# CONFIG_ATH10K_TRACING is not set
> CONFIG_ATH10K_DFS_CERTIFIED=y
> CONFIG_WCN36XX=m
> # CONFIG_WCN36XX_DEBUGFS is not set
> CONFIG_ATH11K=m
> CONFIG_ATH11K_PCI=m
> # CONFIG_ATH11K_DEBUG is not set
> -# CONFIG_ATH11K_TRACING is not set
> CONFIG_WLAN_VENDOR_ATMEL=y
> CONFIG_ATMEL=m
> CONFIG_PCI_ATMEL=m
> @@ -3073,7 +3061,6 @@ CONFIG_IWLWIFI_OPMODE_MODULAR=y
> # Debugging Options
> #
> # CONFIG_IWLWIFI_DEBUG is not set
> -# CONFIG_IWLWIFI_DEVICE_TRACING is not set
> # end of Debugging Options
> 
> CONFIG_WLAN_VENDOR_INTERSIL=y
> @@ -6839,7 +6826,6 @@ CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
> CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
> # CONFIG_PSTORE_CONSOLE is not set
> # CONFIG_PSTORE_PMSG is not set
> -# CONFIG_PSTORE_FTRACE is not set
> # CONFIG_PSTORE_RAM is not set
> # CONFIG_PSTORE_BLK is not set
> # CONFIG_SYSV_FS is not set
> @@ -7265,8 +7251,6 @@ CONFIG_SYSTEM_TRUSTED_KEYS=""
> # CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
> # end of Certificates for signature checking
> 
> -CONFIG_BINARY_PRINTF=y
> -
> #
> # Library routines
> #
> @@ -7467,7 +7451,6 @@ CONFIG_DEBUG_MISC=y
> # CONFIG_DEBUG_PAGEALLOC is not set
> # CONFIG_PAGE_OWNER is not set
> CONFIG_PAGE_POISONING=y
> -# CONFIG_DEBUG_PAGE_REF is not set
> # CONFIG_DEBUG_RODATA_TEST is not set
> CONFIG_ARCH_HAS_DEBUG_WX=y
> CONFIG_DEBUG_WX=y
> @@ -7586,7 +7569,6 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=60
> # CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
> # CONFIG_LATENCYTOP is not set
> CONFIG_USER_STACKTRACE_SUPPORT=y
> -CONFIG_NOP_TRACER=y
> CONFIG_HAVE_FUNCTION_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
> CONFIG_HAVE_DYNAMIC_FTRACE=y
> @@ -7598,52 +7580,8 @@ CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
> CONFIG_HAVE_FENTRY=y
> CONFIG_HAVE_OBJTOOL_MCOUNT=y
> CONFIG_HAVE_C_RECORDMCOUNT=y
> -CONFIG_TRACER_MAX_TRACE=y
> -CONFIG_TRACE_CLOCK=y
> -CONFIG_RING_BUFFER=y
> -CONFIG_EVENT_TRACING=y
> -CONFIG_CONTEXT_SWITCH_TRACER=y
> -CONFIG_TRACING=y
> -CONFIG_GENERIC_TRACER=y
> CONFIG_TRACING_SUPPORT=y
> -CONFIG_FTRACE=y
> -# CONFIG_BOOTTIME_TRACING is not set
> -CONFIG_FUNCTION_TRACER=y
> -CONFIG_FUNCTION_GRAPH_TRACER=y
> -CONFIG_DYNAMIC_FTRACE=y
> -CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
> -CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
> -CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
> -CONFIG_FUNCTION_PROFILER=y
> -CONFIG_STACK_TRACER=y
> -# CONFIG_IRQSOFF_TRACER is not set
> -CONFIG_SCHED_TRACER=y
> -# CONFIG_HWLAT_TRACER is not set
> -# CONFIG_OSNOISE_TRACER is not set
> -# CONFIG_TIMERLAT_TRACER is not set
> -# CONFIG_MMIOTRACE is not set
> -CONFIG_FTRACE_SYSCALLS=y
> -CONFIG_TRACER_SNAPSHOT=y
> -# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
> -CONFIG_BRANCH_PROFILE_NONE=y
> -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> -# CONFIG_BLK_DEV_IO_TRACE is not set
> -CONFIG_UPROBE_EVENTS=y
> -CONFIG_DYNAMIC_EVENTS=y
> -CONFIG_PROBE_EVENTS=y
> -CONFIG_FTRACE_MCOUNT_RECORD=y
> -CONFIG_FTRACE_MCOUNT_USE_CC=y
> -# CONFIG_SYNTH_EVENTS is not set
> -# CONFIG_HIST_TRIGGERS is not set
> -# CONFIG_TRACE_EVENT_INJECT is not set
> -# CONFIG_TRACEPOINT_BENCHMARK is not set
> -CONFIG_RING_BUFFER_BENCHMARK=m
> -# CONFIG_TRACE_EVAL_MAP_FILE is not set
> -# CONFIG_FTRACE_RECORD_RECURSION is not set
> -# CONFIG_FTRACE_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_STARTUP_TEST is not set
> -# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
> -# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
> +# CONFIG_FTRACE is not set
> # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
> # CONFIG_SAMPLES is not set
> CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
> -- 
> 2.35.3