<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - gdm won't start after boot"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81375">81375</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>gdm won't start after boot
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zahnwiegebiss@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>[ 44.720091] ------------[ cut here ]------------
[ 44.720113] WARNING: CPU: 1 PID: 1189 at drivers/gpu/drm/drm_irq.c:770
send_vblank_event+0xe1/0xf0 [drm]()
[ 44.720115] Modules linked in: vhost_net vhost macvtap macvlan
ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4
xt_conntrack nf_conntrack xt_CHECKSUM iptable_mangle tun bridge stp llc
ip6table_filter ip6_tables ebtable_nat ebtables arc4 md4 nls_utf8 cifs
dns_resolver fscache bnep bluetooth cfg80211 rfkill x86_pkg_temp_thermal
coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel
ghash_clmulni_intel ppdev dcdbas iTCO_wdt iTCO_vendor_support
snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel
snd_hda_controller snd_hda_codec snd_hwdep snd_seq snd_seq_device joydev
snd_pcm microcode serio_raw snd_timer snd soundcore lpc_ich mei_me i2c_i801
shpchp mfd_core mei tpm_tis tpm parport_pc parport nfsd auth_rpcgss nfs_acl
lockd sunrpc i915 e1000e
[ 44.720139] ptp pps_core i2c_algo_bit drm_kms_helper drm i2c_core video
[ 44.720143] CPU: 1 PID: 1189 Comm: Xorg Not tainted 3.15.4-200.fc20.x86_64
#1
[ 44.720145] Hardware name: Dell Inc. Precision T1600/06NWYK, BIOS A02
04/11/2011
[ 44.720146] 0000000000000000 0000000091781590 ffff880036877c40
ffffffff816ef2b1
[ 44.720148] 0000000000000000 ffff880036877c78 ffffffff8108934d
ffff8804017d2d80
[ 44.720150] ffff8800c5a12800 ffff8800c5a12a00 ffff8804171f5000
ffff8804017d2540
[ 44.720151] Call Trace:
[ 44.720157] [<ffffffff816ef2b1>] dump_stack+0x45/0x56
[ 44.720159] [<ffffffff8108934d>] warn_slowpath_common+0x7d/0xa0
[ 44.720161] [<ffffffff8108947a>] warn_slowpath_null+0x1a/0x20
[ 44.720167] [<ffffffffa002a561>] send_vblank_event+0xe1/0xf0 [drm]
[ 44.720173] [<ffffffffa002a5fb>] drm_send_vblank_event+0x8b/0xe0 [drm]
[ 44.720188] [<ffffffffa0131fc3>] intel_crtc_page_flip+0x1b3/0x430 [i915]
[ 44.720197] [<ffffffffa0037a7f>] drm_mode_page_flip_ioctl+0x15f/0x310 [drm]
[ 44.720203] [<ffffffffa0026a79>] drm_ioctl+0x229/0x600 [drm]
[ 44.720211] [<ffffffffa0037920>] ? drm_mode_gamma_get_ioctl+0xf0/0xf0 [drm]
[ 44.720213] [<ffffffff811f94a0>] do_vfs_ioctl+0x2e0/0x4a0
[ 44.720215] [<ffffffff811f96e1>] SyS_ioctl+0x81/0xa0
[ 44.720218] [<ffffffff8111fac6>] ? __audit_syscall_exit+0x1f6/0x2a0
[ 44.720220] [<ffffffff816ff2e9>] system_call_fastpath+0x16/0x1b
[ 44.720221] ---[ end trace 433afeb3d1da38f4 ]---</pre>
</div>
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