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Message-ID: <20200327074148.GX11705@shao2-debian>
Date: Fri, 27 Mar 2020 15:41:48 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: 0day robot <lkp@...el.com>, Gerd Hoffmann <kraxel@...hat.com>,
Thomas Zimmermann <tzimmermann@...e.de>,
Sam Ravnborg <sam@...nborg.org>,
Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>,
Daniel Vetter <daniel.vetter@...el.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: [drm] 4d7883fabf:
WARNING:at_drivers/gpu/drm/drm_managed.c:#drmm_add_final_kfree[drm]
FYI, we noticed the following commit (built with gcc-7):
commit: 4d7883fabfdc73e271e75c9b0b7866ea7e7ae699 ("drm: Set final_kfree in drm_dev_alloc")
url: https://github.com/0day-ci/linux/commits/UPDATE-20200326-004731/Daniel-Vetter/drm_device-managed-resources-v5/20200324-045435
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-----------------------------------------------------------------------------+------------+------------+
| | 7f89874a78 | 4d7883fabf |
+-----------------------------------------------------------------------------+------------+------------+
| boot_successes | 11 | 0 |
| boot_failures | 1 | 11 |
| BUG:kernel_hang_in_early-boot_stage,last_printk:early_console_in_setup_code | 1 | |
| WARNING:at_drivers/gpu/drm/drm_managed.c:#drmm_add_final_kfree[drm] | 0 | 11 |
| RIP:drmm_add_final_kfree[drm] | 0 | 11 |
+-----------------------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 249.726375] WARNING: CPU: 0 PID: 334 at drivers/gpu/drm/drm_managed.c:119 drmm_add_final_kfree+0x3d/0x50 [drm]
[ 249.728604] Modules linked in: bochs_drm(+) drm_vram_helper drm_ttm_helper ttm drm_kms_helper drm psmouse i6300esb qemu_fw_cfg drm_panel_orientation_quirks
[ 249.731136] CPU: 0 PID: 334 Comm: udevd Not tainted 5.6.0-rc7-01663-g4d7883fabfdc7 #1
[ 249.732599] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 249.734188] RIP: 0010:drmm_add_final_kfree+0x3d/0x50 [drm]
[ 249.735169] Code: 25 48 89 ef e8 f4 42 18 e1 48 8d 93 c0 05 00 00 48 01 e8 48 39 c2 73 12 48 89 6b 30 5b 5d c3 0f 0b 48 39 eb 73 db 0f 0b eb d7 <0f> 0b 48 89 6b 30 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 41 54 55
[ 249.738423] RSP: 0018:ffff888220fe3b58 EFLAGS: 00010246
[ 249.739410] RAX: ffff88822199ade0 RBX: ffff88822199a820 RCX: 0000000000000000
[ 249.740764] RDX: ffff88822199ade0 RSI: ffff88822199a820 RDI: ffff88822199a820
[ 249.742147] RBP: ffff88822199a820 R08: 3a30303a30303030 R09: 00302e32303a3030
[ 249.743487] R10: ffff888220beb000 R11: 000000000000000b R12: ffff888236b1a0b0
[ 249.744866] R13: ffffffffa0107000 R14: 0000000000000005 R15: ffffffffa01072c0
[ 249.746231] FS: 00007fe4e9609300(0000) GS:ffffffff82a2d000(0000) knlGS:0000000000000000
[ 249.747730] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 249.748839] CR2: 0000000000243000 CR3: 0000000220fb8000 CR4: 00000000000406b0
[ 249.752487] Call Trace:
[ 249.752944] drm_dev_alloc+0x47/0x70 [drm]
[ 249.753713] bochs_pci_probe+0x65/0x130 [bochs_drm]
[ 249.754653] ? pci_match_device+0xc5/0xf0
[ 249.755432] pci_device_probe+0xb3/0x120
[ 249.756164] really_probe+0xe4/0x320
[ 249.756870] device_driver_attach+0x4a/0x50
[ 249.757689] __driver_attach+0x67/0xb0
[ 249.758426] ? device_driver_attach+0x50/0x50
[ 249.759270] bus_for_each_dev+0x60/0x90
[ 249.759984] bus_add_driver+0x170/0x1f0
[ 249.760726] ? 0xffffffffa010a000
[ 249.761391] driver_register+0x56/0xf0
[ 249.762115] ? 0xffffffffa010a000
[ 249.762451] do_one_initcall+0x49/0x1e0
[ 249.762834] ? do_init_module+0x16/0x1de
[ 249.763236] ? __kmalloc+0x57/0x180
[ 249.763586] ? trace_hardirqs_on+0x2a/0xc0
[ 249.763993] do_init_module+0x4e/0x1de
[ 249.764366] load_module+0x16d5/0x1cc0
[ 249.764739] ? __do_sys_finit_module+0x96/0xb0
[ 249.765178] __do_sys_finit_module+0x96/0xb0
[ 249.765603] do_syscall_64+0x6a/0x240
[ 249.765969] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 249.766484] RIP: 0033:0x7fe4e971eb99
[ 249.766842] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c7 12 0c 00 f7 d8 64 89 01 48
[ 249.768639] RSP: 002b:00007ffe2c279298 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 249.769372] RAX: ffffffffffffffda RBX: 0000558a63e342b0 RCX: 00007fe4e971eb99
[ 249.770078] RDX: 0000000000000000 RSI: 00007fe4e97f71e3 RDI: 000000000000000f
[ 249.771197] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 249.772544] R10: 000000000000000f R11: 0000000000000246 R12: 00007fe4e97f71e3
[ 249.773896] R13: 0000000000020000 R14: 00007ffe2c279390 R15: 0000000000000000
[ 249.775227] ---[ end trace f8d95502aef0064a ]---
To reproduce:
# build kernel
cd linux
cp config-5.6.0-rc7-01663-g4d7883fabfdc7 .config
make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
View attachment "config-5.6.0-rc7-01663-g4d7883fabfdc7" of type "text/plain" (159413 bytes)
View attachment "job-script" of type "text/plain" (4746 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (16744 bytes)
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