Description of problem: After resume laptop from suspend mode I've turned of and on the Ati VGA. Kernel oopsed ant turning on: echo OFF> /sys/kernel/debug/vgaswitcheroo/switch echo ON> /sys/kernel/debug/vgaswitcheroo/switch Additional info: divide error: 0000 [#1] SMP Modules linked in: hidp fuse lockd sunrpc rfcomm bnep nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack vfat fat snd_hda_codec_hdmi snd_hda_codec_realtek arc4 ath9k ath9k_common ath9k_hw uvcvideo ath mac80211 videobuf2_vmalloc videobuf2_memops snd_hda_intel snd_hda_codec videobuf2_core videodev media ath3k snd_hwdep btusb snd_seq snd_seq_device iTCO_wdt iTCO_vendor_support snd_pcm cfg80211 snd_page_alloc r8169 snd_timer snd i2c_i801 acpi_cpufreq mperf coretemp kvm_intel kvm bluetooth rfkill lpc_ich mfd_core mei soundcore microcode mii uinput i915 radeon crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ttm ghash_clmulni_intel drm i2c_core wmi video CPU 1 Pid: 1626, comm: bash Not tainted 3.9.2-200.fc18.x86_64 #1 SAMSUNG ELECTRONICS CO., LTD. 350V5C/350V5X/350V4C/350V4X/351V5C/351V5X/351V4C/351V4X/3540VC/3540VX/3440VC/3440VX/NP350V5C-S09PL RIP: 0010:[<ffffffffa011a3e2>] [<ffffffffa011a3e2>] r6xx_remap_render_backend+0x72/0xf0 [radeon] RSP: 0018:ffff880162a8dd20 EFLAGS: 00010246 RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000000000ff RBP: ffff880162a8dd58 R08: 00000000000000ff R09: ffff880162a8dcd4 R10: ffff8801b6092000 R11: 0000000000040000 R12: 0000000000000002 R13: 00000000000000ff R14: 0000000000000002 R15: 0000000000000000 FS: 00007ffaac075740(0000) GS:ffff8801bf280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9be20d0000 CR3: 0000000162a97000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process bash (pid: 1626, threadinfo ffff880162a8c000, task ffff880162880000) Stack: ffff8801b6092000 ffff880100000004 ffff8801b6092000 00000000000000ff 0000000002010002 0000000040000000 00000000ffffffff ffff880162a8ddd8 ffffffffa013598e 00003a9800007530 0000000000000000 0000000000000000 Call Trace: [<ffffffffa013598e>] evergreen_startup+0x12be/0x1820 [radeon] [<ffffffffa01361f8>] evergreen_resume+0x38/0x80 [radeon] [<ffffffffa00d4a73>] radeon_resume_kms+0x73/0x1a0 [radeon] [<ffffffffa00d4c51>] radeon_switcheroo_set_state+0xb1/0x110 [radeon] [<ffffffff813f2ab9>] vga_switchon+0x39/0x50 [<ffffffff813f3468>] vga_switcheroo_debugfs_write+0x368/0x3b0 [<ffffffff8129e12c>] ? security_file_permission+0x2c/0xb0 [<ffffffff8119fd5c>] vfs_write+0xac/0x180 [<ffffffff811a01f2>] sys_write+0x52/0xa0 [<ffffffff810dfbcc>] ? __audit_syscall_exit+0x20c/0x2c0 [<ffffffff81669a59>] system_call_fastpath+0x16/0x1b Code: 00 44 09 c2 80 fa ff 44 0f 45 ea d3 e0 44 89 ef 89 45 d0 e8 91 ff ff ff 8b 75 d0 41 29 c7 4c 8b 55 c8 44 39 fe 72 75 31 d2 89 f0 <41> f7 f7 44 0f af f8 41 89 c1 89 f0 44 29 f8 41 83 ba c0 00 00 RIP [<ffffffffa011a3e2>] r6xx_remap_render_backend+0x72/0xf0 [radeon] RSP <ffff880162a8dd20>
Created attachment 752835 [details] File: dmesg
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