Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
kernel_samsung_a53x/include
History
Robin H. Johnson d1c499bdf6 tracing: Increase PERF_MAX_TRACE_SIZE to handle Sentinel1 and docker together 
commit e531e90b5ab0f7ce5ff298e165214c1aec6ed187 upstream.

Running endpoint security solutions like Sentinel1 that use perf-based
tracing heavily lead to this repeated dump complaining about dockerd.
The default value of 2048 is nowhere near not large enough.

Using the prior patch "tracing: show size of requested buffer", we get
"perf buffer not large enough, wanted 6644, have 6144", after repeated
up-sizing (I did 2/4/6/8K). With 8K, the problem doesn't occur at all,
so below is the trace for 6K.

I'm wondering if this value should be selectable at boot time, but this
is a good starting point.

```
------------[ cut here ]------------
perf buffer not large enough, wanted 6644, have 6144
WARNING: CPU: 1 PID: 4997 at kernel/trace/trace_event_perf.c:402 perf_trace_buf_alloc+0x8c/0xa0
Modules linked in: [..]
CPU: 1 PID: 4997 Comm: sh Tainted: G                T 5.13.13-x86_64-00039-gb3959163488e #63
Hardware name: LENOVO 20KH002JUS/20KH002JUS, BIOS N23ET66W (1.41 ) 09/02/2019
RIP: 0010:perf_trace_buf_alloc+0x8c/0xa0
Code: 80 3d 43 97 d0 01 00 74 07 31 c0 5b 5d 41 5c c3 ba 00 18 00 00 89 ee 48 c7 c7 00 82 7d 91 c6 05 25 97 d0 01 01 e8 22 ee bc 00 <0f> 0b 31 c0 eb db 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 89
RSP: 0018:ffffb922026b7d58 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff9da5ee012000 RCX: 0000000000000027
RDX: ffff9da881657828 RSI: 0000000000000001 RDI: ffff9da881657820
RBP: 00000000000019f4 R08: 0000000000000000 R09: ffffb922026b7b80
R10: ffffb922026b7b78 R11: ffffffff91dda688 R12: 000000000000000f
R13: ffff9da5ee012108 R14: ffff9da8816570a0 R15: ffffb922026b7e30
FS:  00007f420db1a080(0000) GS:ffff9da881640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000060 CR3: 00000002504a8006 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kprobe_perf_func+0x11e/0x270
 ? do_execveat_common.isra.0+0x1/0x1c0
 ? do_execveat_common.isra.0+0x5/0x1c0
 kprobe_ftrace_handler+0x10e/0x1d0
 0xffffffffc03aa0c8
 ? do_execveat_common.isra.0+0x1/0x1c0
 do_execveat_common.isra.0+0x5/0x1c0
 __x64_sys_execve+0x33/0x40
 do_syscall_64+0x6b/0xc0
 ? do_syscall_64+0x11/0xc0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f420dc1db37
Code: ff ff 76 e7 f7 d8 64 41 89 00 eb df 0f 1f 80 00 00 00 00 f7 d8 64 41 89 00 eb dc 0f 1f 84 00 00 00 00 00 b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 01 43 0f 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd4e8b4e38 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f420dc1db37
RDX: 0000564338d1e740 RSI: 0000564338d32d50 RDI: 0000564338d28f00
RBP: 0000564338d28f00 R08: 0000564338d32d50 R09: 0000000000000020
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000564338d28f00
R13: 0000564338d32d50 R14: 0000564338d1e740 R15: 0000564338d28c60
---[ end trace 83ab3e8e16275e49 ]---
```

Link: https://lkml.kernel.org/r/20210831043723.13481-2-robbat2@gentoo.org

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 11:32:38 +01:00
..
acpi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
asm-generic asm-generic: qspinlock: fix queued_spin_value_unlocked() implementation 2024-11-18 12:11:56 +01:00
clocksource Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crypto crypto: af_alg - Disallow multiple in-flight AIO requests 2024-11-18 12:12:26 +01:00
drm drm: Don't treat 0 as -1 in drm_fixp2int_ceil 2024-11-19 08:44:51 +01:00
dt-bindings dt-bindings: clock: Update the videocc resets for sm8150 2024-11-18 12:12:41 +01:00
keys Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kunit Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kvm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
linux tracing: Increase PERF_MAX_TRACE_SIZE to handle Sentinel1 and docker together 2024-11-19 11:32:38 +01:00
math-emu Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
media Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memory Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
misc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc(). 2024-11-19 11:32:38 +01:00
pcmcia Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ras Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rdma Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
scsc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
scsi scsi: core: Introduce enum scsi_disposition 2024-11-18 12:13:21 +01:00
sdp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
soc soc: fsl: qbman: Add CGR update function 2024-11-19 09:22:35 +01:00
sound ASoC: soc-card: Add storage for PCI SSID 2024-11-18 11:43:13 +01:00
target Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
test Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
trace tracing/net_sched: Fix tracepoints that save qdisc_dev() as a string 2024-11-18 23:19:34 +01:00
uapi Input: allocate keycode for Display refresh rate toggle 2024-11-19 09:23:14 +01:00
variant1/linux Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vdso Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
video Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xen Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00