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Date: Mon, 7 Nov 2016 10:26:28 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
Cc: "David S. Miller" <davem@...emloft.net>,
"Allan W. Nielsen" <allan.nielsen@...rosemi.com>,
Andrew Lunn <andrew@...n.ch>,
LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
lkp@...org
Subject: [lkp] [net] af1fee9821: BUG:spinlock_trylock_failure_on_UP_on_CPU
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master
commit af1fee98219992ba2c12441a447719652ed7e983 ("net: phy: Add support for Microsemi VSC 8530/40 Fast Ethernet PHY")
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -m 4G
caused below changes:
+-------------------------------------------------------+------------+------------+
| | 32ab0a38f0 | af1fee9821 |
+-------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 8 | 8 |
| calltrace:init | 8 | 7 |
| BUG:key_not_in.data | 6 | |
| WARNING:at_kernel/locking/lockdep.c:#lockdep_init_map | 6 | |
| calltrace:vhci_hcd_init | 6 | |
| invalid_opcode:#[##]PREEMPT_DEBUG_PAGEALLOC | 2 | 1 |
| RIP:__brk_base | 2 | 1 |
| calltrace:eth_driver_init | 2 | 7 |
| Kernel_panic-not_syncing:Fatal_exception | 2 | 1 |
| BUG:spinlock_trylock_failure_on_UP_on_CPU | 0 | 6 |
| BUG:workqueue_lockup-pool | 0 | 1 |
+-------------------------------------------------------+------------+------------+
[ 35.319526] udc dummy_udc.0: releasing 'dummy_udc.0'
[ 35.320910] kobject (ffff88011b574f78): tried to init an initialized object, something is seriously wrong.
[ 35.323437] CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-14895-gaf1fee9 #1
[ 35.325381] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 35.327617] ffff88013a89fb88 ffffffff812cb0fe ffff88013a89fba8 ffffffff812cd41b
[ 35.329817] ffff88011b574f68 ffff88011b574ed8 ffff88013a89fbc0 ffffffff8144faf5
[ 35.331831] ffff88011b574f68 ffff88013a89fbd8 ffffffff81450353 ffff88011cbad800
[ 35.333751] Call Trace:
[ 35.334663] [<ffffffff812cb0fe>] dump_stack+0x19/0x1b
[ 35.335980] [<ffffffff812cd41b>] kobject_init+0x31/0x7f
[ 35.337316] [<ffffffff8144faf5>] device_initialize+0x23/0xd2
[ 35.338931] [<ffffffff81450353>] device_register+0xd/0x18
[ 35.340289] [<ffffffff818847ec>] usb_add_gadget_udc_release+0xcf/0x2cb
[ 35.342138] [<ffffffff81884a61>] usb_add_gadget_udc+0xb/0xd
[ 35.343535] [<ffffffff81887815>] dummy_udc_probe+0x1a4/0x1e5
[ 35.345019] [<ffffffff81454c94>] platform_drv_probe+0x23/0x4e
[ 35.346517] [<ffffffff8145393d>] driver_probe_device+0x1b7/0x40e
[ 35.348388] [<ffffffff81453d0c>] __device_attach_driver+0x90/0xd0
[ 35.349979] [<ffffffff81453c7c>] ? driver_allows_async_probing+0xd/0xd
[ 35.351742] [<ffffffff814521a5>] bus_for_each_drv+0x76/0x85
[ 35.353120] [<ffffffff81453657>] __device_attach+0x89/0xe7
[ 35.354639] [<ffffffff81453e5c>] device_initial_probe+0xe/0x10
[ 35.356082] [<ffffffff8145237b>] bus_probe_device+0x2e/0x99
[ 35.357471] [<ffffffff81450250>] device_add+0x3f4/0x4ea
[ 35.358999] [<ffffffff814552b4>] platform_device_add+0x174/0x1d4
[ 35.360477] [<ffffffff82d8aaf0>] init+0x26e/0x36c
[ 35.361869] [<ffffffff82d8a882>] ? trace_event_define_fields_udc_log_req+0x205/0x205
[ 35.363766] [<ffffffff82d368d4>] ? set_debug_rodata+0x12/0x12
[ 35.365211] [<ffffffff82d3706e>] do_one_initcall+0x89/0x149
[ 35.366649] [<ffffffff82d368d4>] ? set_debug_rodata+0x12/0x12
[ 35.368293] [<ffffffff82d3724b>] kernel_init_freeable+0x11d/0x1a0
[ 35.369774] [<ffffffff81dfa235>] ? rest_init+0x12c/0x12c
[ 35.371303] [<ffffffff81dfa23e>] kernel_init+0x9/0xeb
[ 35.372561] [<ffffffff81e0a8ca>] ret_from_fork+0x2a/0x40
[ 35.375486] userial_init: registered 4 ttyGS* devices
[ 35.376616] udc dummy_udc.0: registering UDC driver [g_ether]
[ 35.378200] using random self ethernet address
[ 35.379189] using random host ethernet address
[ 35.380273] g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/ffffffff82af89c0
[ 35.382209] g_ether gadget: adding 'cdc_ethernet'/ffff88011b57fa00 to config 'CDC Ethernet (ECM)'/ffffffff82af89c0
[ 35.385445] BUG: spinlock trylock failure on UP on CPU#0, swapper/1
[ 35.386973] lock: 0xffff88011d52cd00, .magic: 00000000, .owner: <none>/-1, .owner_cpu: -1
[ 35.389161] CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-14895-gaf1fee9 #1
[ 35.390818] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 35.392828] ffff88013a89fb40 ffffffff812cb0fe ffff88013a89fb60 ffffffff810d6b77
[ 35.395074] ffff88011d52cd00 0000000000000000 ffff88013a89fb80 ffffffff810d6ba2
[ 35.396910] ffff88011d52cd00 ffffffff8248818a ffff88013a89fba8 ffffffff810d6e0b
[ 35.398924] Call Trace:
[ 35.399507] [<ffffffff812cb0fe>] dump_stack+0x19/0x1b
[ 35.400712] [<ffffffff810d6b77>] spin_dump+0x7f/0x84
[ 35.402103] [<ffffffff810d6ba2>] spin_bug+0x26/0x28
[ 35.403239] [<ffffffff810d6e0b>] do_raw_spin_trylock+0x5f/0x69
[ 35.404688] [<ffffffff81e09926>] _raw_spin_lock+0x36/0x64
[ 35.405992] [<ffffffff81df92a4>] ? klist_add_tail+0x20/0x4b
[ 35.407241] [<ffffffff81df92a4>] klist_add_tail+0x20/0x4b
[ 35.408619] [<ffffffff8145026c>] device_add+0x410/0x4ea
[ 35.409727] [<ffffffff810d6c1e>] ? __raw_spin_lock_init+0x2e/0x4c
[ 35.411208] [<ffffffff81b6a372>] netdev_register_kobject+0x8f/0x12b
[ 35.412672] [<ffffffff81b4f777>] register_netdevice+0x3f2/0x5e5
[ 35.414163] [<ffffffff81b4f981>] register_netdev+0x17/0x24
[ 35.415715] [<ffffffff818ac9c2>] gether_register_netdev+0x30/0xf3
[ 35.417192] [<ffffffff818ad8c2>] ecm_bind+0x70/0x360
[ 35.418752] [<ffffffff8187ead2>] usb_add_function+0xae/0x19f
[ 35.420120] [<ffffffff818b43f6>] eth_do_config+0x10f/0x145
[ 35.421747] [<ffffffff818b42e7>] ? eth_bind+0x27f/0x27f
[ 35.423037] [<ffffffff8187ed7c>] usb_add_config+0x68/0x25a
[ 35.424365] [<ffffffff818b41ec>] eth_bind+0x184/0x27f
[ 35.425631] [<ffffffff8187f607>] composite_bind+0x99/0x182
[ 35.427003] [<ffffffff82d368d4>] ? set_debug_rodata+0x12/0x12
[ 35.428581] [<ffffffff81883c80>] udc_bind_to_driver+0x53/0xe8
[ 35.430029] [<ffffffff81884c5c>] usb_gadget_probe_driver+0x121/0x13b
[ 35.431559] [<ffffffff82d8ad5c>] ? ffsmod_init+0x12/0x12
[ 35.432849] [<ffffffff8187f78b>] usb_composite_probe+0x9b/0x9d
[ 35.434414] [<ffffffff82d8ad6c>] eth_driver_init+0x10/0x12
[ 35.435787] [<ffffffff82d3706e>] do_one_initcall+0x89/0x149
[ 35.437132] [<ffffffff82d368d4>] ? set_debug_rodata+0x12/0x12
[ 35.438774] [<ffffffff82d3724b>] kernel_init_freeable+0x11d/0x1a0
[ 35.440235] [<ffffffff81dfa235>] ? rest_init+0x12c/0x12c
[ 35.441889] [<ffffffff81dfa23e>] kernel_init+0x9/0xeb
[ 35.443110] [<ffffffff81e0a8ca>] ret_from_fork+0x2a/0x40
Elapsed time: 80
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Xiaolong
View attachment "config-4.8.0-14895-gaf1fee9" of type "text/plain" (99914 bytes)
View attachment "job-script" of type "text/plain" (4064 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (13200 bytes)
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