Bug#819881: radeon_fence_ref BUG: unable to handle kernel NULL pointer dereference
Hi,
Today, after updating to Debian 8.4, I had the same problem (see below
the extract from syslog). So, I reinstalled the previous package
3.16.7-ckt20-1+deb8u4 and everything back to the way it was before.
Syslog extrack
Apr 3 22:04:45 hpcore2 kernel: [ 3754.417930] BUG: unable to handle
kernel NULL pointer dereference at 0000000000000008
Apr 3 22:04:45 hpcore2 kernel: [ 3754.417982] IP: [<ffffffffa040bc3d>]
radeon_fence_ref+0xd/0x50 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418053] PGD 0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418067] Oops: 0002 [#1] SMP
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418090] Modules linked in: bnep
bluetooth 6lowpan_iphc snd_hrtimer snd_seq snd_seq_device cfg80211
rfkill binfmt_misc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd
fscache sunrpc usblp radeon ttm drm_kms_helper drm i2c_algo_bit pcspkr
serio_raw iTCO_wdt iTCO_vendor_support evdev coretemp i2c_i801 i2c_core
snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm
snd_timer snd lpc_ich mfd_core shpchp soundcore button acpi_cpufreq
processor thermal_sys loop fuse parport_pc ppdev lp parport autofs4 ext4
crc16 mbcache jbd2 usb_storage sg sd_mod crc_t10dif crct10dif_generic
sr_mod cdrom crct10dif_common ata_generic psmouse ata_piix libata
scsi_mod firewire_ohci r8169 firewire_core mii crc_itu_t ehci_pci
uhci_hcd ehci_hcd usbcore usb_common
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418642] CPU: 0 PID: 697 Comm:
Xorg Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt25-1
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418677] Hardware name:
Hewlett-Packard HP Compaq dx2400 Microtower/2A73, BIOS 5.23
04/21/2008
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418716] task: ffff88007a9db430
ti: ffff88007a9ec000 task.ti: ffff88007a9ec000
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418746] RIP:
0010:[<ffffffffa040bc3d>] [<ffffffffa040bc3d>] radeon_fence_ref
+0xd/0x50 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418796] RSP:
0018:ffff88007a9efb18 EFLAGS: 00010292
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418820] RAX: 0000000000000000
RBX: ffff88007961d5f8 RCX: ffff88007961cd08
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418849] RDX: 0000000000000001
RSI: 0000000000000000 RDI: 0000000000000000
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418878] RBP: ffff88007961d550
R08: ffff88007961c000 R09: 0000000000000000
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418907] R10: 0000000000000002
R11: ffffffffffffffec R12: 0000000000000020
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418936] R13: ffff88007a9efbe0
R14: ffff88007a9efbb0 R15: ffff88007961d5f8
Apr 3 22:04:45 hpcore2 kernel: [ 3754.418966] FS:
00007f1092278980(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419001] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419024] CR2: 0000000000000008
CR3: 000000007a993000 CR4: 00000000000007f0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419054] Stack:
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419064] ffffffffa046c0bc
00200000000c0000 0000f00000000100 ffff88007a9efcd0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419106] ffff88007961c000
ffff88007a9db430 ffff88007a9db430 00000000000002e0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419147] 0000000000000000
0000000000000000 0000000000000000 0000000000000000
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419189] Call Trace:
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419217] [<ffffffffa046c0bc>] ?
radeon_sa_bo_new+0x25c/0x460 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419259] [<ffffffffa0420f3e>] ?
radeon_ib_get+0x2e/0xd0 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419301] [<ffffffffa042347c>] ?
radeon_cs_ioctl+0x13c/0x730 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419340] [<ffffffffa03778b7>] ?
drm_ioctl+0x1c7/0x5b0 [drm]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419371] [<ffffffff81057311>] ?
__do_page_fault+0x1d1/0x4f0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419407] [<ffffffffa03f0046>] ?
radeon_drm_ioctl+0x46/0x80 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419437] [<ffffffff811bacdf>] ?
do_vfs_ioctl+0x2cf/0x4b0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419463] [<ffffffff811baf41>] ?
SyS_ioctl+0x81/0xa0
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419487] [<ffffffff81516a28>] ?
page_fault+0x28/0x30
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419513] [<ffffffff81514a0d>] ?
system_call_fast_compare_end+0x10/0x15
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419543] Code: e4 48 8b 3b 89 c1
89 ea 48 c7 c6 80 b6 4f a0 31 c0 e8 68 57 f9 e0 eb cb 66 0f 1f 44 00 00
66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa
01 7e 01 c3 80 3d 0e 43 11 00 00
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419839] RIP [<ffffffffa040bc3d>]
radeon_fence_ref+0xd/0x50 [radeon]
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419883] RSP <ffff88007a9efb18>
Apr 3 22:04:45 hpcore2 kernel: [ 3754.419898] CR2: 0000000000000008
Apr 3 22:04:45 hpcore2 kernel: [ 3754.430323] ---[ end trace
6f078410004efac7 ]---
Regards
Patrice
Reply to: