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Additional info: reporter: libreport-2.2.3 BUG: unable to handle kernel NULL pointer dereference at 0000000000000088 IP: [<ffffffffa0268551>] btrfs_kobj_rm_device+0x21/0x40 [btrfs] PGD 0 Oops: 0000 [#1] SMP Modules linked in: cfg80211 rfkill btrfs snd_intel8x0 snd_ac97_codec ac97_bus snd_seq snd_seq_device ppdev xor raid6_pq snd_pcm microcode snd_timer serio_raw parport_pc snd i2c_piix4 parport soundcore i2c_core xfs libcrc32c virtio_net virtio_pci virtio_ring ata_generic virtio pata_acpi CPU: 2 PID: 821 Comm: btrfs-devrepl Not tainted 3.16.0-0.rc6.git0.1.fc21.1.x86_64 #1 Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 task: ffff880099b5eca0 ti: ffff88009983c000 task.ti: ffff88009983c000 RIP: 0010:[<ffffffffa0268551>] [<ffffffffa0268551>] btrfs_kobj_rm_device+0x21/0x40 [btrfs] RSP: 0018:ffff88009983fe08 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: bbb3527a6b299586 RDX: ffff880036b6e410 RSI: ffff88009b4a2800 RDI: ffff880035f6cac0 RBP: ffff88009983fe10 R08: ffff880036b6e410 R09: 0000000000000234 R10: ffffe8ffffd01090 R11: ffffffff818675c0 R12: ffff880099a2cdc8 R13: ffff88009b4a2800 R14: ffff880099eaa000 R15: ffff880036acf200 FS: 0000000000000000(0000) GS:ffff88009fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000088 CR3: 000000009aefe000 CR4: 00000000000006e0 Stack: ffff880099a2c000 ffff88009983fe90 ffffffffa02bf93d ffff880099a2c100 ffff880099a2ce38 00000006baa50000 ffffffff00000028 ffff88009983fea0 ffff88009983fe58 000000002909d417 ffff880099a2c000 000000002909d417 Call Trace: [<ffffffffa02bf93d>] btrfs_dev_replace_finishing+0x32d/0x5c0 [btrfs] [<ffffffffa02c0130>] ? btrfs_dev_replace_status+0x110/0x110 [btrfs] [<ffffffffa02c019d>] btrfs_dev_replace_kthread+0x6d/0x130 [btrfs] [<ffffffff810b311a>] kthread+0xea/0x100 [<ffffffff810b3030>] ? insert_kthread_work+0x40/0x40 [<ffffffff8172253c>] ret_from_fork+0x7c/0xb0 [<ffffffff810b3030>] ? insert_kthread_work+0x40/0x40 Code: 5f 5d c3 0f 1f 80 00 00 00 00 66 66 66 66 90 55 48 89 e5 53 48 8b bf f0 09 00 00 48 85 ff 74 20 31 db 48 85 f6 74 14 48 8b 46 78 <48> 8b 80 88 00 00 00 48 8b 70 38 e8 2f 23 01 e1 89 d8 5b 5d c3 RIP [<ffffffffa0268551>] btrfs_kobj_rm_device+0x21/0x40 [btrfs] RSP <ffff88009983fe08> CR2: 0000000000000088
Created attachment 925304 [details] File: dmesg
Already reported upstream. http://www.spinics.net/lists/linux-btrfs/msg36021.html
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.18.3-201.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.