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Re: [PATCH 24/26] tests/boot_linux_console: Add initrd test for the Exyn
From: |
Cleber Rosa |
Subject: |
Re: [PATCH 24/26] tests/boot_linux_console: Add initrd test for the Exynos4210 |
Date: |
Mon, 28 Oct 2019 17:40:19 -0400 |
User-agent: |
Mutt/1.12.1 (2019-06-15) |
On Mon, Oct 28, 2019 at 08:34:39AM +0100, Philippe Mathieu-Daudé wrote:
> From: Philippe Mathieu-Daudé <address@hidden>
>
> This test boots a Linux kernel on a smdkc210 board and verify
> the serial output is working.
>
> The cpio image used comes from the linux-build-test project:
> https://github.com/groeck/linux-build-test
>
> If ARM is a target being built, "make check-acceptance" will
> automatically include this test by the use of the "arch:arm" tags.
>
> This test can be run using:
>
> $ IGNORE_AVOCADO_CONSOLE_BUG=yes \
> avocado --show=app,console run -t machine:smdkc210 \
> tests/acceptance/boot_linux_console.py
> console: Booting Linux on physical CPU 0x900
> console: Linux version 4.19.0-6-armmp (address@hidden) (gcc version 8.3.0
> (Debian 8.3.0-6)) #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20)
> console: CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c5387d
> console: CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing
> instruction cache
> console: OF: fdt: Machine model: Samsung smdkv310 evaluation board based on
> Exynos4210
> [...]
> console: Samsung CPU ID: 0x43210211
> console: random: get_random_bytes called from start_kernel+0xa0/0x504 with
> crng_init=0
> console: percpu: Embedded 17 pages/cpu s39756 r8192 d21684 u69632
> console: Built 1 zonelists, mobility grouping on. Total pages: 249152
> console: Kernel command line: printk.time=0 console=ttySAC0,115200n8
> earlyprintk random.trust_cpu=off cryptomgr.notests cpuidle.off=1 panic=-1
> noreboot
> [...]
> console: L2C: platform modifies aux control register: 0x02020000 ->
> 0x3e420001
> console: L2C: platform provided aux values permit register corruption.
> console: L2C: DT/platform modifies aux control register: 0x02020000 ->
> 0x3e420001
> console: L2C-310 erratum 769419 enabled
> console: L2C-310 enabling early BRESP for Cortex-A9
> console: L2C-310: enabling full line of zeros but not enabled in Cortex-A9
> console: L2C-310 ID prefetch enabled, offset 1 lines
> console: L2C-310 dynamic clock gating disabled, standby mode disabled
> console: L2C-310 cache controller enabled, 8 ways, 128 kB
> console: L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x7e420001
> console: Exynos4210 clocks: sclk_apll = 12000000, sclk_mpll = 12000000
> console: sclk_epll = 12000000, sclk_vpll = 12000000, arm_clk = 12000000
> [...]
> console: s3c-i2c 13860000.i2c: slave address 0x00
> console: s3c-i2c 13860000.i2c: bus frequency set to 93 KHz
> console: s3c-i2c 13860000.i2c: i2c-0: S3C I2C adapter
> [...]
> console: dma-pl330 12680000.pdma: Loaded driver for PL330 DMAC-241330
> console: dma-pl330 12680000.pdma: DBUFF-256x8bytes Num_Chans-8
> Num_Peri-32 Num_Events-16
> console: dma-pl330 12690000.pdma: Loaded driver for PL330 DMAC-241330
> console: dma-pl330 12690000.pdma: DBUFF-256x8bytes Num_Chans-8
> Num_Peri-32 Num_Events-16
> console: dma-pl330 12850000.mdma: Loaded driver for PL330 DMAC-241330
> console: dma-pl330 12850000.mdma: DBUFF-256x8bytes Num_Chans-8
> Num_Peri-1 Num_Events-16
> console: dma-pl330 12850000.mdma: PM domain LCD0 will not be powered off
> console: Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> console: Serial: AMBA driver
> console: 13800000.serial: ttySAC0 at MMIO 0x13800000 (irq = 40, base_baud =
> 0) is a S3C6400/10
> console: console [ttySAC0] enabled
> console: 13810000.serial: ttySAC1 at MMIO 0x13810000 (irq = 41, base_baud =
> 0) is a S3C6400/10
> console: 13820000.serial: ttySAC2 at MMIO 0x13820000 (irq = 42, base_baud =
> 0) is a S3C6400/10
> console: 13830000.serial: ttySAC3 at MMIO 0x13830000 (irq = 43, base_baud =
> 0) is a S3C6400/10
> [...]
> console: Freeing unused kernel memory: 2048K
> console: Run /init as init process
> console: mount: mounting devtmpfs on /dev failed: Device or resource busy
> console: Starting logging: OK
> console: Initializing random number generator... random: dd: uninitialized
> urandom read (512 bytes read)
> console: done.
> console: Starting network: OK
> console: Found console ttySAC0
> console: Linux version 4.19.0-6-armmp (address@hidden) (gcc version 8.3.0
> (Debian 8.3.0-6)) #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20)
> console: Boot successful.
> PASS (37.98 s)
>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> v2: use archive.gzip_uncompress (Cleber)
>
> serial input is not working :(
>
> I sometime get (not always):
>
> Starting network: OK
> [ 70.403690] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 70.423212] rcu: 0-...!: (36 GPs behind) idle=c7a/1/0x40000000
> softirq=287/288 fqs=1
> [ 70.428209] rcu: (detected by 1, t=2602 jiffies, g=-443, q=2209)
> [ 70.432826] Sending NMI from CPU 1 to CPUs 0:
> [ 70.473866] NMI backtrace for cpu 0
> [ 70.476621] CPU: 0 PID: 112 Comm: cat Not tainted 4.19.0 #1
> [ 70.476711] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
> [ 70.476916] PC is at mntput_no_expire+0x88/0x464
> [ 70.476996] LR is at rcu_is_watching+0x24/0x78
> [ 70.477074] pc : [<c02b256c>] lr : [<c01a2fb4>] psr: a0000013
> [ 70.477150] sp : ee2afdb0 ip : 9dff9a2f fp : ee2aff70
> [ 70.477225] r10: 00000142 r9 : ee219dc0 r8 : ee2afec0
> [ 70.477302] r7 : ee2afec0 r6 : c0298d6c r5 : ef02c400 r4 : ef018200
> [ 70.477385] r3 : c0f99274 r2 : 00000031 r1 : 2e87c000 r0 : a0000013
> [ 70.477461] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
> none
> [ 70.477537] Control: 10c5387d Table: 6e30806a DAC: 00000051
> [ 70.477613] CPU: 0 PID: 112 Comm: cat Not tainted 4.19.0 #1
> [ 70.477688] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
> [ 70.477765] [<c01128f4>] (unwind_backtrace) from [<c010e5b4>]
> (show_stack+0x10/0x14)
> [ 70.477847] [<c010e5b4>] (show_stack) from [<c0a36160>]
> (dump_stack+0x98/0xc4)
> [ 70.477925] [<c0a36160>] (dump_stack) from [<c0a3cc90>]
> (nmi_cpu_backtrace+0x6c/0xb4)
> [ 70.478000] [<c0a3cc90>] (nmi_cpu_backtrace) from [<c0111530>]
> (handle_IPI+0x108/0x420)
> [ 70.478076] [<c0111530>] (handle_IPI) from [<c04950a8>]
> (gic_handle_irq+0x98/0x9c)
> [ 70.478151] [<c04950a8>] (gic_handle_irq) from [<c01019f0>]
> (__irq_svc+0x70/0xb0)
> [ 70.478226] Exception stack(0xee2afd60 to 0xee2afda8)
> [ 70.478303] fd60: a0000013 2e87c000 00000031 c0f99274 ef018200 ef02c400
> c0298d6c ee2afec0
> [ 70.478378] fd80: ee2afec0 ee219dc0 00000142 ee2aff70 9dff9a2f ee2afdb0
> c01a2fb4 c02b256c
> [ 70.478453] fda0: a0000013 ffffffff
> [ 70.478529] [<c01019f0>] (__irq_svc) from [<c02b256c>]
> (mntput_no_expire+0x88/0x464)
> [ 70.478605] [<c02b256c>] (mntput_no_expire) from [<c0298d6c>]
> (terminate_walk+0x154/0x160)
> [ 70.478681] [<c0298d6c>] (terminate_walk) from [<c029ce3c>]
> (path_openat+0x324/0xfe4)
> [ 70.478759] [<c029ce3c>] (path_openat) from [<c029ea9c>]
> (do_filp_open+0x70/0xdc)
> [ 70.478835] [<c029ea9c>] (do_filp_open) from [<c028b36c>]
> (do_sys_open+0x134/0x1e4)
> [ 70.478911] [<c028b36c>] (do_sys_open) from [<c0101000>]
> (ret_fast_syscall+0x0/0x28)
> [ 70.478989] Exception stack(0xee2affa8 to 0xee2afff0)
> [ 70.479064] ffa0: b6fc7d6c 0000000a ffffff9c bebbf268
> 000a0000 00000000
> [ 70.479139] ffc0: b6fc7d6c 0000000a 00000050 00000142 bebbf268 b6fc6970
> b6fc6b28 bebbf254
> [ 70.479214] ffe0: b6fc6970 bebbf1e0 b6f9dd94 b6fb0c0c
> [ 70.484892] rcu: rcu_preempt kthread starved for 2600 jiffies! g-443 f0x0
> RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
> [ 70.514943] rcu: RCU grace-period kthread stack dump:
> [ 70.516687] rcu_preempt I 0 10 2 0x00000000
> [ 70.523711] [<c0a4caac>] (__schedule) from [<c0a4d28c>]
> (schedule+0x4c/0xac)
> [ 70.525103] [<c0a4d28c>] (schedule) from [<c0a52c34>]
> (schedule_timeout+0x230/0x564)
> [ 70.526472] [<c0a52c34>] (schedule_timeout) from [<c01a7818>]
> (rcu_gp_kthread+0x6e4/0xbf0)
> [ 70.527784] [<c01a7818>] (rcu_gp_kthread) from [<c014d7f0>]
> (kthread+0x138/0x168)
> [ 70.528989] [<c014d7f0>] (kthread) from [<c01010b4>]
> (ret_from_fork+0x14/0x20)
> [ 70.530387] Exception stack(0xef111fb0 to 0xef111ff8)
> [ 70.532556] 1fa0: 00000000 00000000
> 00000000 00000000
> [ 70.534904] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> [ 70.536920] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> Found console ttySAC0
>
> Linux version 4.19.0 (root@591d0a36fd03) (gcc version 6.3.0 20170516 (Debian
> 6.3.0-18)) #1 SMP PREEMPT Fri Oct 4 19:53:43 UTC 2019
> Boot successful.
> / #
>
> Also:
>
> [ 73.000405] [<c01128f4>] (unwind_backtrace) from [<c010e5b4>]
> (show_stack+0x10/0x14)
> [ 73.000537] [<c010e5b4>] (show_stack) from [<c0a36160>]
> (dump_stack+0x98/0xc4)
> [ 73.000631] [<c0a36160>] (dump_stack) from [<c0a3cc90>]
> (nmi_cpu_backtrace+0x6c/0xb4)
> [ 73.000701] [<c0a3cc90>] (nmi_cpu_backtrace) from [<c0111530>]
> (handle_IPI+0x108/0x420)
> [ 73.000823] [<c0111530>] (handle_IPI) from [<c04950a8>]
> (gic_handle_irq+0x98/0x9c)
> [ 73.000924] [<c04950a8>] (gic_handle_irq) from [<c01019f0>]
> (__irq_svc+0x70/0xb0)
> [ 73.000990] Exception stack(0xef123f80 to 0xef123fc8)
> [ 73.001064] 3f80: 00000001 00000001 00000000 ef11b300 ef122000 c1007470
> c10074b4 00000002
> [ 73.001131] 3fa0: 4000406a 410fc090 00000000 00000000 00000000 ef123fd0
> c018759c c010a4c8
> [ 73.001196] 3fc0: 20000013 ffffffff
> [ 73.001262] [<c01019f0>] (__irq_svc) from [<c010a4c8>]
> (arch_cpu_idle+0x24/0x3c)
> [ 73.001328] [<c010a4c8>] (arch_cpu_idle) from [<c015f1f0>]
> (do_idle+0xcc/0x168)
> [ 73.001394] [<c015f1f0>] (do_idle) from [<c015f60c>]
> (cpu_startup_entry+0x18/0x1c)
> [ 73.001462] [<c015f60c>] (cpu_startup_entry) from [<4010276c>] (0x4010276c)
>
> Based-on: address@hidden
> "tests/boot_linux_console: Extract the gunzip() helper"
> ---
> tests/acceptance/boot_linux_console.py | 42 ++++++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
>
> diff --git a/tests/acceptance/boot_linux_console.py
> b/tests/acceptance/boot_linux_console.py
> index 44a046bd64..cbb8cddf47 100644
> --- a/tests/acceptance/boot_linux_console.py
> +++ b/tests/acceptance/boot_linux_console.py
> @@ -432,6 +432,48 @@ class BootLinuxConsole(MachineTest):
> exec_command_and_wait_for_pattern(self, 'reboot',
> 'reboot: Restarting system')
>
> + @skipUnless(os.getenv('IGNORE_AVOCADO_CONSOLE_BUG'), 'Console buggy')
Given that the problems seem related to console input, I think it's
safe to remove this conditional. I've tested this extensively
(hundreds of executions with as many as 15 running simultaneously)
and had no issues.
Reviewed-by: Cleber Rosa <address@hidden>
Tested-by: Cleber Rosa <address@hidden>
Queuing on my python-next branch (and sending shortly in a PR).
Thanks,
- Cleber.
- [PATCH 20/26] tests/boot_linux_console: Add a test for the Raspberry Pi 2, (continued)
- [PATCH 20/26] tests/boot_linux_console: Add a test for the Raspberry Pi 2, Philippe Mathieu-Daudé, 2019/10/28
- [PATCH 21/26] tests/boot_linux_console: Test the raspi2 UART1 (16550 based), Philippe Mathieu-Daudé, 2019/10/28
- [PATCH 22/26] tests/boot_linux_console: Boot Linux and run few commands on raspi3, Philippe Mathieu-Daudé, 2019/10/28
- [PATCH 23/26] tests/boot_linux_console: Test SDHCI and termal sensor on raspi3, Philippe Mathieu-Daudé, 2019/10/28
- [PATCH 24/26] tests/boot_linux_console: Add initrd test for the Exynos4210, Philippe Mathieu-Daudé, 2019/10/28
- Re: [PATCH 24/26] tests/boot_linux_console: Add initrd test for the Exynos4210,
Cleber Rosa <=
- [PATCH 25/26] tests/boot_linux_console: Add sdcard test for the Exynos4210, Philippe Mathieu-Daudé, 2019/10/28
- [PATCH 26/26] tests/boot_linux_console: Run BusyBox on 5KEc 64-bit cpu, Philippe Mathieu-Daudé, 2019/10/28
- Re: [PATCH 00/26] tests/acceptance: Queue for 4.2, no-reply, 2019/10/28
- Re: [PATCH 00/26] tests/acceptance: Queue for 4.2, no-reply, 2019/10/28