linux-kernel - [serial] 63a3c2fa95: WARNING:at_kernel/locking/irqflag-debug.c:#warn_bogus_irq

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Date:   Tue, 26 Apr 2022 11:04:25 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     John Ogness <john.ogness@...utronix.de>
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [serial]  63a3c2fa95:
 WARNING:at_kernel/locking/irqflag-debug.c:#warn_bogus_irq_restore



Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 63a3c2fa9545cff5419ff2ec2458cbb41d838d97 ("serial: 8250: implement write_atomic")
https://git.kernel.org/cgit/linux/kernel/git/rt/linux-rt-devel.git linux-5.18.y-rt-rebase

in testcase: boot

on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):



If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>



[   10.820244][    T1] ------------[ cut here ]------------
[   10.820274][    T1] raw_local_irq_restore() called with IRQs enabled
[   10.820321][    T1] WARNING: CPU: 0 PID: 1 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x24/0x30
[   10.820344][    T1] Modules linked in:
[   10.820349][    T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W         5.18.0-rc4-00017-g63a3c2fa9545 #3
[   10.820353][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   10.820358][    T1] EIP: warn_bogus_irq_restore+0x24/0x30
[   10.820362][    T1] Code: cc cc cc cc cc cc 80 3d 48 7d d8 d9 00 74 07 31 c0 c3 8d 74 26 00 55 c6 05 48 7d d8 d9 01 89 e5 68 dc 99 80 d9 e8 d0 bc f7 ff <0f> 0b 58 89 ec 5d 31 c0 c3 cc cc cc 55 83 fa 07 89 e5 53 89 d3 0f
[   10.820365][    T1] EAX: 00000000 EBX: da747b20 ECX: 00000000 EDX: 00000000
[   10.820371][    T1] ESI: 00000200 EDI: 00000004 EBP: c10b9ea4 ESP: c10b9ea0
[   10.820373][    T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010246
[   10.820376][    T1] CR0: 80050033 CR2: ff99a000 CR3: 19fe2000 CR4: 000406d0
[   10.820380][    T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[   10.820382][    T1] DR6: fffe0ff0 DR7: 00000400
[   10.820384][    T1] Call Trace:
[   10.820387][    T1]  autoconfig_irq+0x365/0x370
[   10.820394][    T1]  serial8250_config_port+0xdf/0x150
[   10.820398][    T1]  uart_add_one_port+0x1d5/0x360
[   10.820401][    T1]  serial8250_init+0x16a/0x1e5
[   10.820406][    T1]  ? univ8250_console_init+0x55/0x55
[   10.820410][    T1]  do_one_initcall+0x54/0x2b0
[   10.820413][    T1]  ? rdinit_setup+0x71/0x71
[   10.820418][    T1]  do_initcalls+0x13f/0x186
[   10.820421][    T1]  kernel_init_freeable+0xff/0x150
[   10.820424][    T1]  ? rest_init+0x270/0x270
[   10.820428][    T1]  kernel_init+0x12/0xf0
[   10.820443][    T1]  ret_from_fork+0x19/0x30
[   10.820447][    T1] irq event stamp: 244031
[   10.820449][    T1] hardirqs last  enabled at (244037): [<d8ae2f4a>] console_trylock_spinning+0x19a/0x1d0
[   10.820455][    T1] hardirqs last disabled at (244042): [<d8ae2f05>] console_trylock_spinning+0x155/0x1d0
[   10.820459][    T1] softirqs last  enabled at (243574): [<d94e8561>] __do_softirq+0x281/0x448
[   10.820466][    T1] softirqs last disabled at (243563): [<d8a261fd>] do_softirq_own_stack+0x1d/0x30
[   10.820473][    T1] ---[ end trace 0000000000000000 ]---




To reproduce:

        # build kernel
	cd linux
	cp config-5.18.0-rc4-00017-g63a3c2fa9545 .config
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-5.18.0-rc4-00017-g63a3c2fa9545" of type "text/plain" (169494 bytes)

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