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Re: kernel BUG at /build/linux-lq6CKI/linux-3.12.9/fs/buffer.c:1278




>> 
>> Oggi, mentre sto salvando un testo, libreoffice write si chiude
>> all'improvviso (mentre visualizzo una cartella di dropbox dove volevo
>> salvare)
>> 
>> Ripeto la cosa lanciando libreoffice da terminale ma l'intero pc diventa
>> fortemente instabile, kdm si blocca.
>> Riesco dopo qualche minuto a visualizzare una consolle ed entro come root.
>> Leggo dei messaggi non rassicuranti di dmesg e provo a riavviare come
>> consigliato all'ultima riga.
>> Non riesce a riavviarsi, nemmeno con reboot, shutdown -F... quindi
>> procedo, a malincuore, a resettare con il tastino, sperando di non
>> procurare danni permanenti ai dischi.
>> 
>> ora funziona ma senza effetti grafici...
>> 
>> Più sotto allego l'estratto del dmesg.
>> Non ci capisco molto, ma leggo di un bug del kernel... Ci capite
>> qualcosa di più?
>> Mi aiutate a risolvere?
>> 
>> Grazie!
>> Mario
>> 
>>> [ 1415.702677] soffice.bin[5828]: segfault at 540068 ip
>>> 00007fc2206bcf61 sp 00007fff9ee03770 error 4 in
>>> libkio.so.5.11.5[7fc220574000+2a0000]
>>> [ 1466.350820] soffice.bin[6055]: segfault at 80048 ip
>>> 00007f6914d8fe66 sp 00007ffff8d31960 error 4 in
>>> libQtGui.so.4.8.6[7f6914afa000+a5e000]
>>> [ 1466.356305] ------------[ cut here ]------------
>>> [ 1466.356323] kernel BUG at
>>> /build/linux-lq6CKI/linux-3.12.9/fs/buffer.c:1278!
>>> [ 1466.356341] invalid opcode: 0000 [#1] SMP
>>> [ 1466.356354] Modules linked in: arc4 ecb md4 hmac nls_utf8 cifs
>>> dns_resolver parport_pc ppdev lp parport pci_stub vboxpci(O)
>>> vboxnetadp(O) vboxnetflt(O) vboxdrv(O) nfsd auth_rpcgss oid_registry
>>> nfs_acl nfs lockd fscache sunrpc fuse ecryptfs usblp
>>> snd_hda_codec_realtek snd_hda_codec_hdmi tda18218 af9033
>>> dvb_usb_af9035 dvb_usb_v2 snd_usb_audio snd_usbmidi_lib uvcvideo
>>> dvb_core videobuf2_vmalloc videobuf2_memops videobuf2_core
>>> snd_seq_midi snd_seq_midi_event snd_rawmidi rc_core videodev media
>>> joydev snd_hda_intel snd_hda_codec eeepc_wmi asus_wmi sparse_keymap
>>> rfkill iTCO_wdt mxm_wmi iTCO_vendor_support pcspkr
>>> x86_pkg_temp_thermal coretemp kvm_intel kvm i2c_i801 evdev snd_hwdep
>>> i915 drm_kms_helper drm mei_me snd_pcm i2c_algo_bit i2c_core
>>> snd_page_alloc snd_seq snd_seq_device snd_timer video processor button
>>> snd wmi soundcore mei lpc_ich mfd_core ext4 crc16 mbcache jbd2
>>> sha256_ssse3 sha256_generic dm_crypt dm_mod raid1 md_mod hid_generic
>>> usbhid hid sr_mod cdrom sg sd_mod crc_t10dif usb_storage crct10dif_pclmul
>>> crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel
>>> aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd
>>> ehci_pci ehci_hcd ahci libahci xhci_hcd libata scsi_mod e1000e ptp
>>> pps_core usbcore usb_common fan thermal thermal_sys
>>> [ 1466.356741] CPU: 1 PID: 6055 Comm: soffice.bin Tainted: G          
>>> O 3.12-1-amd64 #1 Debian 3.12.9-1
>>> [ 1466.356764] Hardware name: ASUS All Series/Z87-PLUS, BIOS 1602
>>> 10/29/2013
>>> [ 1466.356782] task: ffff88008c1fc840 ti: ffff8801bb166000 task.ti:
>>> ffff8801bb166000
>>> [ 1466.356801] RIP: 0010:[<ffffffff8148af1e>]  [<ffffffff8148af1e>]
>>> block_dump___mark_inode_dirty+0x95/0x95
>>> [ 1466.356828] RSP: 0018:ffff8801bb167658  EFLAGS: 00010046
>>> [ 1466.356841] RAX: 0000000000000086 RBX: ffff88009d18ac88 RCX:
>>> ffff8800d3021800
>>> [ 1466.356860] RDX: 0000000000001000 RSI: 0000000007d000e3 RDI:
>>> ffff88021effe1c0
>>> [ 1466.356877] RBP: ffff88021effe1c0 R08: 000000000000001f R09:
>>> 000000000000001f
>>> [ 1466.356894] R10: ffff8800d3021800 R11: 0000000000001000 R12:
>>> 0000000007d000e3
>>> [ 1466.356911] R13: 00000000000000c3 R14: 0000000000001000 R15:
>>> ffff880036352000
>>> [ 1466.356929] FS:  00007f69284c7840(0000) GS:ffff88021fa80000(0000)
>>> knlGS:0000000000000000
>>> [ 1466.356949] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 1466.356963] CR2: 0000000000080048 CR3: 00000001fd0c0000 CR4:
>>> 00000000001407e0
>>> [ 1466.356981] Stack:
>>> [ 1466.356987]  ffffffff811a18a5 0000000000000000 0000000000000000
>>> 0000000000000000
>>> [ 1466.357008]  0000000000008050 0000000000000000 0000000000000001
>>> ffff8801bb1677f0
>>> [ 1466.357029]  0000000000000001 ffff88009d18ac88 ffff88021effe1c0
>>> 0000000007d000e3
>>> [ 1466.357050] Call Trace:
>>> [ 1466.357061]  [<ffffffff811a18a5>] ? __find_get_block+0x235/0x240
>>> [ 1466.357078]  [<ffffffff811a18cc>] ? __getblk+0x1c/0x2d0
>>> [ 1466.357105]  [<ffffffffa02556ca>] ?
>>> __ext4_get_inode_loc+0x10a/0x3d0 [ext4]
>>> [ 1466.357131]  [<ffffffffa0258a2c>] ?
>>> ext4_reserve_inode_write+0x1c/0x90 [ext4]
>>> [ 1466.357155]  [<ffffffffa025bb86>] ? ext4_dirty_inode+0x36/0x50 [ext4]
>>> [ 1466.357182]  [<ffffffffa0258ada>] ?
>>> ext4_mark_inode_dirty+0x3a/0x1d0 [ext4]
>>> [ 1466.357206]  [<ffffffffa025bb86>] ? ext4_dirty_inode+0x36/0x50 [ext4]
>>> [ 1466.357224]  [<ffffffff8119aff2>] ? __mark_inode_dirty+0x172/0x270
>>> [ 1466.357241]  [<ffffffff8118ba59>] ? update_time+0x79/0xc0
>>> [ 1466.357256]  [<ffffffff8105efcd>] ? current_fs_time+0xd/0x50
>>> [ 1466.357272]  [<ffffffff8118bc60>] ? file_update_time+0x80/0xd0
>>> [ 1466.357289]  [<ffffffff81113f52>] ?
>>> __generic_file_aio_write+0x182/0x3e0
>>> [ 1466.357309]  [<ffffffff8101b289>] ? init_fpu+0x49/0xa0
>>> [ 1466.357323]  [<ffffffff81012aff>] ? math_state_restore+0x1f/0x140
>>> [ 1466.357340]  [<ffffffff811141fb>] ? generic_file_aio_write+0x4b/0x90
>>> [ 1466.357361]  [<ffffffffa0250d59>] ? ext4_file_write+0x89/0x380 [ext4]
>>> [ 1466.357379]  [<ffffffffa05a3293>] ? crypt_scatterlist+0x123/0x200
>>> [ecryptfs]
>>> [ 1466.357399]  [<ffffffff81172b77>] ? do_sync_write+0x57/0x90
>>> [ 1466.357414]  [<ffffffff811731f3>] ? vfs_write+0xb3/0x1e0
>>> [ 1466.358120]  [<ffffffff8119c31d>] ? kernel_write+0x2d/0x40
>>> [ 1466.358813]  [<ffffffffa05a2a1f>] ? ecryptfs_write_lower+0x1f/0x40
>>> [ecryptfs]
>>> [ 1466.359499]  [<ffffffffa05a3da7>] ?
>>> ecryptfs_encrypt_page+0xf7/0x190 [ecryptfs]
>>> [ 1466.360166]  [<ffffffffa05a1f4a>] ? ecryptfs_writepage+0xa/0x60
>>> [ecryptfs]
>>> [ 1466.360811]  [<ffffffff8111b5fa>] ? __writepage+0xa/0x30
>>> [ 1466.361433]  [<ffffffff8111be5f>] ? write_cache_pages+0x1df/0x3f0
>>> [ 1466.362055]  [<ffffffff8111b5f0>] ? global_dirtyable_memory+0x30/0x30
>>> [ 1466.362637]  [<ffffffff81185a62>] ? pollwake+0x62/0x70
>>> [ 1466.363190]  [<ffffffff81089a90>] ? wake_up_state+0x10/0x10
>>> [ 1466.363716]  [<ffffffff810836ff>] ? __wake_up_common+0x4f/0x80
>>> [ 1466.364219]  [<ffffffff8111c0a5>] ? generic_writepages+0x35/0x50
>>> [ 1466.364701]  [<ffffffff81113469>] ?
>>> __filemap_fdatawrite_range+0x49/0x50
>>> [ 1466.365175]  [<ffffffff811134b2>] ? filemap_write_and_wait+0x22/0x50
>>> [ 1466.365645]  [<ffffffffa05a1c21>] ?
>>> ecryptfs_put_lower_file+0x31/0x60 [ecryptfs]
>>> [ 1466.366110]  [<ffffffffa059f1c9>] ? ecryptfs_release+0x9/0x20
>>> [ecryptfs]
>>> [ 1466.366564]  [<ffffffff81174b7a>] ? __fput+0xca/0x220
>>> [ 1466.367016]  [<ffffffff81078924>] ? task_work_run+0xb4/0xd0
>>> [ 1466.367448]  [<ffffffff8105d8d3>] ? do_exit+0x2c3/0xa50
>>> [ 1466.367905]  [<ffffffff8105e0c4>] ? do_group_exit+0x34/0xa0
>>> [ 1466.368335]  [<ffffffff8106c058>] ? get_signal_to_deliver+0x1c8/0x5b0
>>> [ 1466.368796]  [<ffffffff8101235d>] ? do_signal+0x3d/0x5b0
>>> [ 1466.369236]  [<ffffffff8149501e>] ? __do_page_fault+0x48e/0x500
>>> [ 1466.369669]  [<ffffffff811afcde>] ? fsnotify+0x24e/0x330
>>> [ 1466.370114]  [<ffffffff810115cd>] ? __switch_to+0x16d/0x480
>>> [ 1466.370523]  [<ffffffff81012938>] ? do_notify_resume+0x68/0x90
>>> [ 1466.370944]  [<ffffffff81491a3c>] ? retint_signal+0x48/0x8c
>>> [ 1466.371358] Code: c0 4c 8d 8f d0 02 00 00 48 c7 c7 08 9d 70 81 e8
>>> 6a e7 ff ff 48 85 ed 74 0f 66 83 45 58 01 5b 48 89 ef 5d e9 45 d4 cf
>>> ff 5b 5d c3 <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b f3 48 0f b8 c7 c3 53 48 8d
>>> 9e ff
>>> [ 1466.372300] RIP  [<ffffffff8148af1e>]
>>> block_dump___mark_inode_dirty+0x95/0x95
>>> [ 1466.372764]  RSP <ffff8801bb167658>
>>> [ 1466.376264] ---[ end trace cfdb08039283f776 ]---
>>> [ 1466.376266] Fixing recursive fault but reboot is needed!
>> 
>> 

Prova a segnalare il bug al manutentore del kernel, dandogli tutti dettagli 

hardware possibili.



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