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Date: Thu, 15 May 2014 22:43:53 +0800
From: Jet Chen <jet.chen@...el.com>
To: Rob Clark <robdclark@...il.com>
CC: Fengguang Wu <fengguang.wu@...el.com>,
dri-devel@...ts.freedesktop.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
intel-gfx@...ts.freedesktop.org
Subject: [drm] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_crtc.c:1175 drm_universal_plane_init()
Hi Rob,
0day kernel testing robot got the below dmesg and the first bad commit is
git://people.freedesktop.org/~robclark/linux cold-fusion
commit 4eb7eae00f39d53f64441d05161317eb5fd704a6
Author: Rob Clark <robdclark@...il.com>
AuthorDate: Sat Mar 15 12:37:16 2014 -0400
Commit: Rob Clark <robdclark@...il.com>
CommitDate: Wed May 14 12:15:37 2014 -0400
drm: convert plane to properties/state
Break the mutable state of a plane out into a separate structure
and use atomic properties mechanism to set plane attributes. This
makes it easier to have some helpers for plane->set_property()
and for checking for invalid params. The idea is that individual
drivers can wrap the state struct in their own struct which adds
driver specific parameters, for easy build-up of state across
multiple set_property() calls and for easy atomic commit or roll-
back.
The same should be done for CRTC, encoder, and connector, but this
patch only includes the first part (plane).
Signed-off-by: Rob Clark <robdclark@...il.com>
+--------------------------------------------------------------------------+------------+------------+
| | 5c58528a01 | 4eb7eae00f |
+--------------------------------------------------------------------------+------------+------------+
| boot_successes | 60 | 0 |
| boot_failures | 0 | 20 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_crtc.c:drm_universal_plane_init() | 0 | 20 |
| backtrace:drm_universal_plane_init | 0 | 20 |
| backtrace:warn_slowpath_null | 0 | 20 |
| backtrace:drm_plane_init | 0 | 20 |
| backtrace:drm_primary_helper_create_plane | 0 | 20 |
| backtrace:drm_crtc_init | 0 | 20 |
| backtrace:cirrus_modeset_init | 0 | 20 |
| backtrace:__pci_register_driver | 0 | 20 |
| backtrace:drm_pci_init | 0 | 20 |
| backtrace:cirrus_init | 0 | 20 |
| backtrace:kernel_init_freeable | 0 | 20 |
+--------------------------------------------------------------------------+------------+------------+
[ 4.186795] [TTM] Initializing pool allocator
[ 4.187338] [TTM] Initializing DMA pool allocator
[ 4.188159] ------------[ cut here ]------------
[ 4.188718] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_crtc.c:1175 drm_universal_plane_init+0x7a/0x365()
[ 4.189987] CPU: 0 PID: 1 Comm: swapper Not tainted 3.15.0-rc3-00250-g4eb7eae0 #19
[ 4.190879] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4.191516] 0000000000000000 ffff880012065b00 ffffffff81ebef16 ffff880012065b38
[ 4.192408] ffffffff81094609 ffffffff816666ee ffff880013b91000 0000000000000001
[ 4.193315] ffff880013b91001 ffffffff820264e0 ffff880012065b48 ffffffff81094744
[ 4.194231] Call Trace:
[ 4.194535] [<ffffffff81ebef16>] dump_stack+0x2e/0x3e
[ 4.195132] [<ffffffff81094609>] warn_slowpath_common+0x98/0xc6
[ 4.195818] [<ffffffff816666ee>] ? drm_universal_plane_init+0x7a/0x365
[ 4.196535] [<ffffffff81094744>] warn_slowpath_null+0x23/0x2c
[ 4.197218] [<ffffffff816666ee>] drm_universal_plane_init+0x7a/0x365
[ 4.197946] [<ffffffff816669f1>] drm_plane_init+0x18/0x21
[ 4.198546] [<ffffffff81674c55>] drm_primary_helper_create_plane+0xd6/0x105
[ 4.199334] [<ffffffff81674ca6>] drm_crtc_init+0x22/0x4a
[ 4.199950] [<ffffffff81695159>] cirrus_modeset_init+0xb6/0x29d
[ 4.200623] [<ffffffff81693ba2>] cirrus_driver_load+0xe4/0x156
[ 4.201310] [<ffffffff8165ba73>] drm_dev_register+0xc4/0x187
[ 4.201946] [<ffffffff8165e904>] drm_get_pci_dev+0x1a8/0x2b1
[ 4.202568] [<ffffffff8169547f>] ? cirrus_pci_probe+0xd2/0x10d
[ 4.203239] [<ffffffff816954ac>] cirrus_pci_probe+0xff/0x10d
[ 4.203913] [<ffffffff814a8fcd>] pci_device_probe+0x9a/0x12f
[ 4.204563] [<ffffffff816fbdc1>] driver_probe_device+0xf0/0x2f3
[ 4.205228] [<ffffffff816fc059>] __driver_attach+0x95/0xd3
[ 4.205863] [<ffffffff816fbfc4>] ? driver_probe_device+0x2f3/0x2f3
[ 4.206538] [<ffffffff816f98c9>] bus_for_each_dev+0x85/0xcd
[ 4.207197] [<ffffffff816fb9a3>] driver_attach+0x20/0x29
[ 4.207823] [<ffffffff816fa541>] bus_add_driver+0x117/0x2b0
[ 4.208451] [<ffffffff816fc663>] driver_register+0x117/0x17d
[ 4.209107] [<ffffffff814a8d37>] __pci_register_driver+0x66/0x70
[ 4.209773] [<ffffffff8165ea96>] drm_pci_init+0x89/0x147
[ 4.210418] [<ffffffff82eb7d86>] ? mga_init+0x33/0x33
[ 4.211011] [<ffffffff82eb7db4>] cirrus_init+0x2e/0x3f
[ 4.211586] [<ffffffff82e694b3>] do_one_initcall+0xb9/0x1d7
[ 4.212234] [<ffffffff810bb700>] ? parameq+0x1f/0x2d
[ 4.212794] [<ffffffff810bb976>] ? parse_args+0x268/0x3ac
[ 4.213435] [<ffffffff82e698bd>] kernel_init_freeable+0x2ec/0x3f8
[ 4.214140] [<ffffffff82e6892d>] ? do_early_param+0xd7/0xd7
[ 4.214755] [<ffffffff81ea4950>] ? rest_init+0x114/0x114
[ 4.215352] [<ffffffff81ea4960>] kernel_init+0x10/0x169
[ 4.215949] [<ffffffff81edb5ca>] ret_from_fork+0x7a/0xb0
[ 4.216559] [<ffffffff81ea4950>] ? rest_init+0x114/0x114
[ 4.217192] ---[ end trace fe2f48d86c2792e8 ]---
[ 4.218922] [drm] fb mappable at 0xFC000000
git bisect start e07f7e22f8a1c3cf462293f888f3fe5f15f858d6 444c9a08bf787e8236e132fab7eceeb2f065aa4c --
git bisect good 79187920667a5ebfa4b0cb900eebd62921d1b892 # 07:45 20+ 0 drm: Allow drm_mode_object_find() to look up an object of any type
git bisect bad 2c27b38d34ee0e5aeea63110b60650797e99002f # 07:47 0- 20 drm: convert crtc to properties/state
git bisect good 5c58528a01dda10b408ffc36b0f34794454ee9cf # 07:50 20+ 0 drm: allow FB's in drm_mode_object_find
git bisect bad 4eb7eae00f39d53f64441d05161317eb5fd704a6 # 07:52 0- 16 drm: convert plane to properties/state
# first bad commit: [4eb7eae00f39d53f64441d05161317eb5fd704a6] drm: convert plane to properties/state
git bisect good 5c58528a01dda10b408ffc36b0f34794454ee9cf # 07:54 60+ 0 drm: allow FB's in drm_mode_object_find
git bisect bad e07f7e22f8a1c3cf462293f888f3fe5f15f858d6 # 07:54 0- 13 drm: more conservative locking
git bisect good 14186fea0cb06bc43181ce239efe0df6f1af260a # 07:57 60+ 0 Merge tag 'locks-v3.15-4' of git://git.samba.org/jlayton/linux
git bisect good 80bb35bc13ea62241f0f2a8f7e2cb67665504a0a # 08:14 60+ 0 Add linux-next specific files for 20140514
This script may reproduce the error.
-----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-x86_64.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/blob/master/initrd/$initrd
kvm=(
qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel $kernel
-initrd $initrd
-smp 2
-m 256M
-net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
-net user,vlan=0
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-serial stdio
-display none
-monitor null
)
append=(
debug
sched_debug
apic=debug
ignore_loglevel
sysrq_always_enabled
panic=10
prompt_ramdisk=0
earlyprintk=ttyS0,115200
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
)
"${kvm[@]}" --append "${append[*]}"
-----------------------------------------------------------------------------
Thanks,
Jet
View attachment "dmesg-quantal-f4-5:20140515075101:x86_64-randconfig-c2-0515:3.15.0-rc3-00250-g4eb7eae0:19" of type "text/plain" (53652 bytes)
Download attachment "x86_64-randconfig-c2-0515-e07f7e22f8a1c3cf462293f888f3fe5f15f858d6-WARNING:---at----drm_universal_plane_init+-x-60421.log" of type "application/octet-stream" (26098 bytes)
View attachment "config-3.15.0-rc3-00250-g4eb7eae0" of type "text/plain" (84016 bytes)
View attachment "Attached Message Part" of type "text/plain" (87 bytes)
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