From: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Provide a couple of example kernel faults, to exercise the kernel log
validator functionality.
The tests inject fake kernel faults into the kernel log buffer which
should be parsed by the validator.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
---
This test exercises the log validator of the test suite rather than
the kms subsystem itself.
As such - it is unlikely to be appropriate for integration as is, but
could be adapted as part of a test suite for the test suite.
---
tests/kms-test-log-validator.py | 111 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 111 insertions(+)
create mode 100755 tests/kms-test-log-validator.py
diff --git a/tests/kms-test-log-validator.py b/tests/kms-test-log-validator.py
new file mode 100755
index 000000000000..5b42897f9775
--- /dev/null
+++ b/tests/kms-test-log-validator.py
@@ -0,0 +1,111 @@
+#!/usr/bin/python3
+
+import kmstest
+
+
+v4l2_warning = """
+buildroot login: [ 1192.247238] ------------[ cut here ]------------
+[ 1192.253245] WARNING: CPU: 1 PID: 4059 at /home/linuxembedded/iob/fdp1/kbuild-rcar/sources/linux/drivers/media/v4l2-core/videobuf2-core.c:1458 vb2_start_streaming+0xd4/0x150
+[ 1192.271226] Modules linked in:
+[ 1192.275575]
+[ 1192.278328] CPU: 1 PID: 4059 Comm: yavta Tainted: G W 4.7.0-rc3-00001-g9f21437be9ed-dirty #523
+[ 1192.289384] Hardware name: Renesas Salvator-X board based on r8a7795 (DT)
+[ 1192.297496] task: ffffffc02eba0000 ti: ffffffc02f3d8000 task.ti: ffffffc02f3d8000
+[ 1192.306323] PC is at vb2_start_streaming+0xd4/0x150
+[ 1192.312548] LR is at vb2_start_streaming+0x64/0x150
+[ 1192.318763] pc : [<ffffff800866e8ec>] lr : [<ffffff800866e87c>] pstate: 60000145
+[ 1192.327507] sp : ffffffc02f3dbb10
+[ 1192.332149] x29: ffffffc02f3dbb10 x28: ffffffc02fb58780
+[ 1192.338801] x27: ffffffc0317d6500 x26: 0000000000000001
+[ 1192.345444] x25: ffffffc02f3dbd40 x24: 0000000000000000
+[ 1192.352068] x23: 000000000000000a x22: 00000000fffffff4
+[ 1192.358684] x21: ffffffc031d935f8 x20: ffffffc031d93780
+[ 1192.365294] x19: ffffffc031d935d8 x18: 0000000000000001
+[ 1192.371905] x17: 0000007f94cde3f0 x16: ffffff80081d5450
+[ 1192.378506] x15: 003b9aca00000000 x14: 000000c8000000c8
+[ 1192.385102] x13: 000000c8000000c8 x12: 000000c8000000c8
+[ 1192.391675] x11: 000000c8000000c8 x10: 000000c8000000c8
+[ 1192.398232] x9 : 0000000000000200 x8 : 0000000000000001
+[ 1192.404778] x7 : 0000000000084084 x6 : ffffffc02f666108
+[ 1192.411322] x5 : 0000000000000000 x4 : 0000000000000000
+[ 1192.417858] x3 : 0000000000000000 x2 : 0000000000000001
+[ 1192.424376] x1 : 0000000000000000 x0 : 0000000000000004
+[ 1192.430861]
+[ 1192.433481] ---[ end trace fab78d8be5167327 ]---
+[ 1192.439239] Call trace:
+[ 1192.442817] Exception stack(0xffffffc02f3db950 to 0xffffffc02f3dba70)
+[ 1192.450420] b940: ffffffc031d935d8 ffffffc031d93780
+[ 1192.459430] b960: ffffffc02f3dbb10 ffffff800866e8ec ffffffbf00b69c80 ffffffbf00b69c80
+[ 1192.468446] b980: ffffffc03100ed80 0000000000000000 ffffffc02f3db9b0 ffffff8008184c8c
+[ 1192.477449] b9a0: 0000007f93fe0000 0000000108184b70 ffffffc02f3dba90 ffffff800809492c
+[ 1192.486468] b9c0: ffffffc02eba0000 ffffffc02f3dbba0 ffffffc03100ed80 0000007f93fe000f
+[ 1192.495477] b9e0: 0000000096000047 0000000000000015 0000000000000004 0000000000000000
+[ 1192.504484] ba00: 0000000000000001 0000000000000000 0000000000000000 0000000000000000
+[ 1192.513477] ba20: ffffffc02f666108 0000000000084084 0000000000000001 0000000000000200
+[ 1192.522448] ba40: 000000c8000000c8 000000c8000000c8 000000c8000000c8 000000c8000000c8
+[ 1192.531407] ba60: 000000c8000000c8 003b9aca00000000
+[ 1192.537388] [<ffffff800866e8ec>] vb2_start_streaming+0xd4/0x150
+[ 1192.544415] [<ffffff800867073c>] vb2_core_streamon+0x16c/0x1a0
+[ 1192.551330] [<ffffff8008672eb4>] vb2_streamon+0x3c/0x60
+[ 1192.557647] [<ffffff8008697d74>] vsp1_video_streamon+0x164/0x250
+[ 1192.564753] [<ffffff8008657e60>] v4l_streamon+0x20/0x28
+[ 1192.571077] [<ffffff800865bc0c>] __video_do_ioctl+0x25c/0x2c8
+[ 1192.577907] [<ffffff800865b7d4>] video_usercopy+0x28c/0x448
+[ 1192.584538] [<ffffff800865b9a4>] video_ioctl2+0x14/0x20
+[ 1192.590781] [<ffffff8008656b20>] v4l2_ioctl+0xe8/0x118
+[ 1192.596902] [<ffffff80081d4dac>] do_vfs_ioctl+0xa4/0x748
+[ 1192.603187] [<ffffff80081d54dc>] SyS_ioctl+0x8c/0xa0
+[ 1192.609136] [<ffffff8008084ecc>] __sys_trace_return+0x0/0x4
+"""
+
+
+zynqpanic = """
+Kernel panic - not syncing: zynqmp_plat_init power management API version error. Expected: v0.3 - Found: v0.2
+
+CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-00012-g98d93a7db7a0-dirty #2
+Hardware name: ZynqMP ZCU102 RevB (DT)
+Call trace:
+[<ffffff8008087908>] dump_backtrace+0x0/0x1a0
+[<ffffff8008087abc>] show_stack+0x14/0x20
+[<ffffff80083d1c88>] dump_stack+0x94/0xb4
+[<ffffff800812a384>] panic+0x114/0x25c
+[<ffffff8008b4fa28>] zynqmp_plat_init+0x148/0x170
+[<ffffff80080828b8>] do_one_initcall+0x38/0x128
+[<ffffff8008b30be4>] kernel_init_freeable+0x84/0x1e0
+[<ffffff800888bd18>] kernel_init+0x10/0x100
+[<ffffff8008082680>] ret_from_fork+0x10/0x50
+---[ end Kernel panic - not syncing: zynqmp_plat_init power management API version error. Expected: v0.3 - Found: v0.2
+"""
+
+
+def printk(msg):
+ with open('/dev/kmsg', 'a') as log_buffer:
+ log_buffer.write("<0>" + msg)
+
+
+class FakeWarningLog(kmstest.KMSTest):
+ """Generate a fake Kernel WARN_ON as part of a test."""
+
+ def main(self):
+ self.start("log validator recognition of a warning")
+
+ for line in v4l2_warning.splitlines():
+ printk(line)
+
+ self.success()
+
+FakeWarningLog().execute()
+
+
+class FakePanicLog(kmstest.KMSTest):
+ """Generate a fake Kernel Panic as part of a test."""
+
+ def main(self):
+ self.start("log validator recognition of a panic")
+
+ for line in zynqpanic.splitlines():
+ printk(line)
+
+ self.success()
+
+FakePanicLog().execute()
--
2.7.4
