Hello, I'm sorry for the long delay -- was too busy with the university and other things... So, yes, this still happens on 4.11 with latest git master (+ trivial porting), which contains this commit. The oops: Jun 01 17:39:15 intelfx-laptop kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 Jun 01 17:39:15 intelfx-laptop kernel: IP: internal_at+0x1/0x30 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: PGD 1337cb067 Jun 01 17:39:16 intelfx-laptop kernel: PUD 104b06067 Jun 01 17:39:16 intelfx-laptop kernel: PMD 0 Jun 01 17:39:16 intelfx-laptop kernel: Jun 01 17:39:16 intelfx-laptop kernel: Oops: 0000 [#1] PREEMPT SMP Jun 01 17:39:16 intelfx-laptop kernel: Modules linked in: bnep nls_iso8859_1 nls_cp437 vfat fat ext4 jbd2 mbcache acpi_call(O) fuse ctr ccm uas btusb btintel bluetooth crc16 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videob Jun 01 17:39:16 intelfx-laptop kernel: tpm_tis_core tpm evdev tcp_yeah tcp_vegas sch_fq_codel vboxnetflt(O) vboxnetadp(O) vboxpci(O) vboxdrv(O) usbserial usbip_host usbip_core sg efivarfs ip_tables x_tables ipv6 autofs4 reiser4 sd_mod hid Jun 01 17:39:16 intelfx-laptop kernel: CPU: 0 PID: 6560 Comm: borg Tainted: G O 4.11.0-pf4-intelfx-00156-g49494524ad71-dirty #1 Jun 01 17:39:16 intelfx-laptop kernel: Hardware name: LENOVO 20BEA008RT/20BEA008RT, BIOS GMET75WW (2.23 ) 03/16/2016 Jun 01 17:39:16 intelfx-laptop kernel: task: ffff890e891f5400 task.stack: ffff9cc04c744000 Jun 01 17:39:16 intelfx-laptop kernel: RIP: 0010:internal_at+0x1/0x30 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: RSP: 0018:ffff9cc04c747978 EFLAGS: 00010246 Jun 01 17:39:16 intelfx-laptop kernel: RAX: 00000000000003a8 RBX: ffff9cc04c7479d0 RCX: ffffffffc06ea980 Jun 01 17:39:16 intelfx-laptop kernel: RDX: ffff8910adafe3c0 RSI: ffff9cc04c7479d0 RDI: 0000000000000000 Jun 01 17:39:16 intelfx-laptop kernel: RBP: ffff8910adafe3c0 R08: 0000000000010000 R09: 0000000000000000 Jun 01 17:39:16 intelfx-laptop kernel: R10: ffffffffc06c6080 R11: 0000000000000020 R12: ffff9cc04c747b10 Jun 01 17:39:16 intelfx-laptop kernel: R13: 0000000000000001 R14: ffff9cc04c7479d0 R15: 0000000000000000 Jun 01 17:39:16 intelfx-laptop kernel: FS: 00007faba5bbe4c0(0000) GS:ffff8910be200000(0000) knlGS:0000000000000000 Jun 01 17:39:16 intelfx-laptop kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 01 17:39:16 intelfx-laptop kernel: CR2: 0000000000000010 CR3: 00000001dd136000 CR4: 00000000001406f0 Jun 01 17:39:16 intelfx-laptop kernel: Call Trace: Jun 01 17:39:16 intelfx-laptop kernel: ? has_pointer_to_internal+0x9/0x20 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? find_disk_cluster+0x185/0x390 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? key_by_inode_cryptcompress+0x70/0x70 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? do_readpage_ctail+0x25d/0x4e0 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? ctail_readpages_filler+0x196/0x260 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? read_cache_pages+0xb7/0x190 Jun 01 17:39:16 intelfx-laptop kernel: ? do_readpage_ctail+0x4e0/0x4e0 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? readpages_ctail+0x13f/0x330 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? readpages_cryptcompress+0x34/0x60 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? __do_page_cache_readahead+0x1de/0x2c0 Jun 01 17:39:16 intelfx-laptop kernel: ? dput.part.6+0x2c/0x240 Jun 01 17:39:16 intelfx-laptop kernel: ? ondemand_readahead+0x11b/0x2d0 Jun 01 17:39:16 intelfx-laptop kernel: ? ondemand_readahead+0x11b/0x2d0 Jun 01 17:39:16 intelfx-laptop kernel: ? pagecache_get_page+0x2b/0x290 Jun 01 17:39:16 intelfx-laptop kernel: ? generic_file_read_iter+0x5bb/0x820 Jun 01 17:39:16 intelfx-laptop kernel: ? __vfs_getxattr+0x25/0x70 Jun 01 17:39:16 intelfx-laptop kernel: ? new_sync_read+0xd2/0x120 Jun 01 17:39:16 intelfx-laptop kernel: ? read_cryptcompress+0x5c/0xa0 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? reiser4_read_dispatch+0x54/0x130 [reiser4] Jun 01 17:39:16 intelfx-laptop kernel: ? vfs_read+0x85/0x150 Jun 01 17:39:16 intelfx-laptop kernel: ? SyS_read+0x4d/0xc0 Jun 01 17:39:16 intelfx-laptop kernel: ? SyS_ioctl+0x36/0x70 Jun 01 17:39:16 intelfx-laptop kernel: ? entry_SYSCALL_64_fastpath+0x13/0x94 Jun 01 17:39:16 intelfx-laptop kernel: Code: 68 53 5b 6e c0 bb fb ff ff ff e8 ed be a4 eb 48 83 c4 18 eb 9e 0f 1f 44 00 00 41 b8 01 00 00 00 31 c9 48 89 f2 e9 d0 eb fc ff 53 <83> 7f 10 ff 48 89 fb 74 09 48 89 df 5b e9 2d 7d 00 00 e8 08 7d Jun 01 17:39:16 intelfx-laptop kernel: RIP: internal_at+0x1/0x30 [reiser4] RSP: ffff9cc04c747978 Jun 01 17:39:16 intelfx-laptop kernel: CR2: 0000000000000010 Jun 01 17:39:16 intelfx-laptop kernel: ---[ end trace 552a3368efb88951 ]--- Not quite sure where to look for the problem... If you are too busy right now, then I'd appreciate at least some pointers. -- Ivan Shapovalov / intelfx / On 2017-02-27 at 17:30 +0100, Edward Shishkin wrote: > Please, check your partition with fsck (repair if damaged). > Then build the kernel with the following patch applied: > 9eca07b7b992724446d5e7327c86bb0bf1f20a41 > Let me know, if the oops appears again. > > Thanks, > Edward.
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