Description of problem: Just did a cold boot, then system hanged. Additional info: reporter: libreport-2.6.3 general protection fault: 0000 [#1] SMP Modules linked in: snd_soc_sst_acpi(+) soundcore dell_rbtn i2c_designware_platform(+) i2c_designware_core int3400_thermal rfkill acpi_thermal_rel lpc_ich nfsd auth_rpcgss nfs_acl lockd grace sunrpc hid_multitouch hid_sensor_hub i915 i2c_algo_bit drm_kms_helper drm serio_raw sdhci_acpi sdhci mmc_core video i2c_hid CPU: 1 PID: 35 Comm: kdevtmpfs Not tainted 4.2.5-300.fc23.x86_64 #1 Hardware name: Dell Inc. Inspiron 7348/0RTGX8, BIOS A07 07/07/2015 task: ffff880254821d80 ti: ffff88025483c000 task.ti: ffff88025483c000 RIP: 0010:[<ffffffff8120001f>] [<ffffffff8120001f>] kmem_cache_alloc+0x7f/0x210 RSP: 0000:ffff88025483fb28 EFLAGS: 00010246 RAX: 00ff8802520aeb00 RBX: 0000000000018020 RCX: 0000000000000020 RDX: 000000000000421f RSI: 0000000000018020 RDI: 0000000000019bc0 RBP: ffff88025483fb68 R08: ffff88025ec59bc0 R09: 00ff8802520aeb00 R10: 0000000000000009 R11: 0000000000000100 R12: 0000000000018020 R13: ffff880256003b00 R14: ffffffff81323207 R15: ffff880256003b00 FS: 0000000000000000(0000) GS:ffff88025ec40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563ed225b000 CR3: 000000003f910000 CR4: 00000000003406e0 Stack: 00070005020a04c9 000000008e139f11 ffff88025483fc08 0000000000000046 0000000000000005 0000000000000025 ffff88025483fc4c 0000000000000001 ffff88025483fbb8 ffffffff81323207 ffff88025483fc58 0000004681338363 Call Trace: [<ffffffff81323207>] avc_alloc_node+0x27/0x120 [<ffffffff81323364>] avc_compute_av+0x64/0x190 [<ffffffff813239b2>] avc_has_perm+0x122/0x190 [<ffffffff8132594c>] may_create+0xfc/0x110 [<ffffffff813259a2>] selinux_inode_mknod+0x42/0x80 [<ffffffff81320186>] security_inode_mknod+0x56/0x80 [<ffffffff8122a77d>] vfs_mknod+0xcd/0x160 [<ffffffff814d6c89>] handle_create+0x89/0x220 [<ffffffff81774b31>] ? __schedule+0x371/0x950 [<ffffffff814d6f52>] devtmpfsd+0x132/0x160 [<ffffffff814d6e20>] ? handle_create+0x220/0x220 [<ffffffff810bc8b8>] kthread+0xd8/0xf0 [<ffffffff810bc7e0>] ? kthread_worker_fn+0x160/0x160 [<ffffffff817795df>] ret_from_fork+0x3f/0x70 [<ffffffff810bc7e0>] ? kthread_worker_fn+0x160/0x160 Code: 83 78 10 00 4d 8b 08 0f 84 37 01 00 00 4d 85 c9 0f 84 2e 01 00 00 49 63 45 20 49 8b 7d 00 4c 01 c8 40 f6 c7 0f 0f 85 60 01 00 00 <48> 8b 18 48 8d 4a 01 4c 89 c8 65 48 0f c7 0f 0f 94 c0 84 c0 74 RIP [<ffffffff8120001f>] kmem_cache_alloc+0x7f/0x210 RSP <ffff88025483fb28>
Created attachment 1094944 [details] File: dmesg
It's still happening (apparently) randomly in both 4.2.3 and 4.2.5 kernels at *boot time*. Once the system is booted up (sometimes it's really hard to achieve), the system works fine. I've also attached the URL for the 4.2.3 issue.
*** This bug has been marked as a duplicate of bug 1278561 ***