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Date: Mon, 22 May 2023 15:51:59 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Luis Chamberlain <mcgrof@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-modules@...r.kernel.org>
Subject: [linus:master] [module] 8660484ed1:
WARNING:at_kernel/module/dups.c:#kmod_dup_request_exists_wait
Hello,
kernel test robot noticed "WARNING:at_kernel/module/dups.c:#kmod_dup_request_exists_wait" on:
commit: 8660484ed1cf3261e89e0bad94c6395597e87599 ("module: add debugging auto-load duplicate module support")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linux-next/master 798d276b39e984345d52b933a900a71fa0815928]
in testcase: boot
compiler: gcc-11
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
We are not sure if this is expected as this patch is for debugging
duplicate module requests issues, so we are sending this report for
your information. Thanks.
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202305221508.753c7b78-yujie.liu@intel.com
[ 48.705567][ T1] ------------[ cut here ]------------
[ 48.706519][ T1] module-autoload: duplicate request for module intel_qat
[ 48.707866][ T1] WARNING: CPU: 0 PID: 1 at kernel/module/dups.c:183 kmod_dup_request_exists_wait (kernel/module/dups.c:183 (discriminator 1))
[ 48.709747][ T1] Modules linked in:
[ 48.710593][ T1] CPU: 0 PID: 1 Comm: swapper Not tainted 6.3.0-rc1-00121-g8660484ed1cf #1
[ 48.712267][ T1] RIP: 0010:kmod_dup_request_exists_wait (kernel/module/dups.c:183 (discriminator 1))
[ 48.713599][ T1] Code: c7 80 e3 2a 83 e8 ba 9f fe 00 48 89 ef e8 fe 4c 17 00 80 3d 87 15 0e 02 00 4c 89 e6 74 10 48 c7 c7 20 c0 47 82 e8 d8 ba f2 ff <0f> 0b eb 0c 48 c7 c7 80 c0 47 82 e8 f7 73 fc ff 45 84 f6 75 3a 48
All code
========
0: c7 80 e3 2a 83 e8 ba movl $0xfe9fba,-0x177cd51d(%rax)
7: 9f fe 00
a: 48 89 ef mov %rbp,%rdi
d: e8 fe 4c 17 00 call 0x174d10
12: 80 3d 87 15 0e 02 00 cmpb $0x0,0x20e1587(%rip) # 0x20e15a0
19: 4c 89 e6 mov %r12,%rsi
1c: 74 10 je 0x2e
1e: 48 c7 c7 20 c0 47 82 mov $0xffffffff8247c020,%rdi
25: e8 d8 ba f2 ff call 0xfffffffffff2bb02
2a:* 0f 0b ud2 <-- trapping instruction
2c: eb 0c jmp 0x3a
2e: 48 c7 c7 80 c0 47 82 mov $0xffffffff8247c080,%rdi
35: e8 f7 73 fc ff call 0xfffffffffffc7431
3a: 45 84 f6 test %r14b,%r14b
3d: 75 3a jne 0x79
3f: 48 rex.W
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: eb 0c jmp 0x10
4: 48 c7 c7 80 c0 47 82 mov $0xffffffff8247c080,%rdi
b: e8 f7 73 fc ff call 0xfffffffffffc7407
10: 45 84 f6 test %r14b,%r14b
13: 75 3a jne 0x4f
15: 48 rex.W
[ 48.717441][ T1] RSP: 0000:ffffc9000001fc48 EFLAGS: 00010286
[ 48.718679][ T1] RAX: 0000000000000000 RBX: ffffc9000001fcb8 RCX: 0000000000000000
[ 48.720263][ T1] RDX: ffffc9000001f96f RSI: 0000000000000008 RDI: fffff52000003f7f
[ 48.721791][ T1] RBP: ffff88812ec34000 R08: 0000000000000000 R09: ffffc9000001fa17
[ 48.723349][ T1] R10: 0000000000000001 R11: ffffffff81199faf R12: ffffc9000001fd08
[ 48.724701][ T1] R13: ffff88812a9cd800 R14: 0000000000000001 R15: 0000000000000001
[ 48.726139][ T1] FS: 0000000000000000(0000) GS:ffffffff82cb6000(0000) knlGS:0000000000000000
[ 48.727857][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.729151][ T1] CR2: ffff88843ffff000 CR3: 0000000002c6d000 CR4: 00000000000406b0
[ 48.730703][ T1] Call Trace:
[ 48.731336][ T1] <TASK>
[ 48.731859][ T1] ? adfdrv_init (drivers/crypto/qat/qat_c3xxx/adf_drv.c:254)
[ 48.732687][ T1] __request_module (kernel/module/kmod.c:168)
[ 48.733637][ T1] ? free_modprobe_argv (kernel/module/kmod.c:133)
[ 48.734681][ T1] ? w1_ds2760_family_init (drivers/power/supply/ds2760_battery.c:801)
[ 48.735699][ T1] ? rcu_read_lock_sched_held (kernel/rcu/update.c:125)
[ 48.736791][ T1] ? adfdrv_init (drivers/crypto/qat/qat_c62x/adf_drv.c:251)
[ 48.737658][ T1] adfdrv_init (drivers/crypto/qat/qat_c3xxx/adf_drv.c:254)
[ 48.738518][ T1] do_one_initcall (init/main.c:1306)
[ 48.739479][ T1] ? rcu_lock_acquire (kernel/notifier.c:262)
[ 48.740637][ T1] ? rcu_read_lock_sched_held (kernel/rcu/update.c:125)
[ 48.741731][ T1] ? lock_is_held (include/linux/sched.h:1572)
[ 48.742565][ T1] do_initcalls (init/main.c:1378 init/main.c:1395)
[ 48.743358][ T1] kernel_init_freeable (init/main.c:1638)
[ 48.744281][ T1] ? rest_init (init/main.c:1514)
[ 48.745140][ T1] kernel_init (init/main.c:1524)
[ 48.745996][ T1] ret_from_fork (arch/x86/entry/entry_64.S:314)
[ 48.746959][ T1] </TASK>
[ 48.747563][ T1] irq event stamp: 2359969
[ 48.748417][ T1] hardirqs last enabled at (2359977): __up_console_sem (arch/x86/include/asm/irqflags.h:26 (discriminator 3) arch/x86/include/asm/irqflags.h:67 (discriminator 3) arch/x86/include/asm/irqflags.h:127 (discriminator 3) kernel/printk/printk.c:345 (discriminator 3))
[ 48.750315][ T1] hardirqs last disabled at (2359986): __up_console_sem (kernel/printk/printk.c:343 (discriminator 3))
[ 48.752231][ T1] softirqs last enabled at (2359662): __do_softirq (arch/x86/include/asm/preempt.h:27 kernel/softirq.c:415 kernel/softirq.c:600)
[ 48.754058][ T1] softirqs last disabled at (2359653): irq_exit (kernel/softirq.c:445 kernel/softirq.c:650 kernel/softirq.c:674)
[ 48.755866][ T1] ---[ end trace 0000000000000000 ]---
[ 48.757648][ T1] initcall adfdrv_init+0x0/0x45 returned 0 after 52170 usecs
[ 48.759132][ T1] calling adfdrv_init+0x0/0x45 @ 1
To reproduce:
# build kernel
cd linux
cp config-6.3.0-rc1-00121-g8660484ed1cf .config
make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 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://github.com/intel/lkp-tests/wiki
View attachment "config-6.3.0-rc1-00121-g8660484ed1cf" of type "text/plain" (148903 bytes)
View attachment "job-script" of type "text/plain" (4711 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (28176 bytes)
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