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* Kernel Oops wenn USB stick with FAT32 is unplugged wenn tcpdump is writing to it.
@ 2019-11-22 10:06 Markus Sattler
  2019-11-25  7:33 ` Markus Sattler
  0 siblings, 1 reply; 2+ messages in thread
From: Markus Sattler @ 2019-11-22 10:06 UTC (permalink / raw)
  To: viro; +Cc: Andreas Chmielewski, Heiko Hund, linux-fsdevel

Hi Alexander,

we found a oops when tcpdump is used to write to a file on a USB stick and then unplugging the USB stick.
this were tested and reproducible on every system that we had on hand,
this includes different platforms (x86_64 / arm).


uname -a of the systems:

4.14.142 #0 SMP PREEMPT Tue Aug 6 10:39:48 2019 aarch64 GNU/Linux
4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux


steps to reproduce:

- create FAT32 USB stick
- mount USB stick
- run "sudo tcpdump -w <USB stick path>/tcpdump.pcap"
- unplug USB stick


If more info is needed feel free to ask.

Best Regards,

Markus


Kernel oops of 5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux


[ 6029.049374] usb 1-2: USB disconnect, device number 23
[ 6029.050234] print_req_error: I/O error, dev sdb, sector 9752 flags 1
[ 6029.050332] print_req_error: I/O error, dev sdb, sector 2049 flags 1
[ 6029.050341] Buffer I/O error on dev sdb1, logical block 1, lost async page write
[ 6029.050356] print_req_error: I/O error, dev sdb, sector 2080 flags 1
[ 6029.050359] Buffer I/O error on dev sdb1, logical block 32, lost async page write
[ 6029.050388] print_req_error: I/O error, dev sdb, sector 5912 flags 1
[ 6029.050391] Buffer I/O error on dev sdb1, logical block 3864, lost async page write
[ 6029.050397] print_req_error: I/O error, dev sdb, sector 9744 flags 1
[ 6029.050400] Buffer I/O error on dev sdb1, logical block 7696, lost async page write
[ 6029.547787] ------------[ cut here ]------------
[ 6029.547790] bdi-block not registered
[ 6029.547817] WARNING: CPU: 3 PID: 16210 at /build/linux-hwe-X76GcN/linux-hwe-5.0.0/fs/fs-writeback.c:2231 __mark_inode_dirty+0x215/0x3b0
[ 6029.547818] Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink ufs qnx4 hfsplus hfs minix ntfs msdos cpuid xfs jfs uas usb_storage snd_usb_audio snd_usbmidi_lib sctp hid_logitech_hidpp
hid_logitech_dj hid_generic usbhid hid ti_usb_3410_5052 ftdi_sio usbserial cdc_ether usbnet r8152 mii rfcomm twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common
serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 cast5_generic cast_common des_generic camellia_generic
camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 xcbc md4 algif_hash xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo cmac bnep binfmt_misc nls_iso8859_1 arc4
snd_hda_codec_hdmi btusb btrtl snd_hda_codec_realtek btbcm intel_rapl btintel snd_hda_codec_generic bluetooth x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_seq_midi ecdh_generic snd_hda_intel
snd_seq_midi_event iwlmvm
[ 6029.547878]  snd_hda_codec intel_cstate intel_rapl_perf snd_rawmidi mac80211 snd_hda_core joydev snd_hwdep input_leds rtsx_pci_ms serio_raw thinkpad_acpi snd_seq wmi_bmof snd_pcm memstick iwlwifi
nvram ledtrig_audio snd_seq_device snd_timer snd cfg80211 mei_me mei soundcore intel_pch_thermal mac_hid ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport xt_limit
xt_tcpudp xt_addrtype xt_conntrack sch_fq_codel ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat coretemp nf_conntrack_ftp parport_pc nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 ppdev iptable_filter lp parport binder_linux bpfilter ashmem_linux(CE) ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c algif_skcipher af_alg
dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel i915 aes_x86_64 crypto_simd cryptd glue_helper psmouse kvmgt vfio_mdev rtsx_pci
mdev vfio_iommu_type1 vfio kvm
[ 6029.547942]  irqbypass video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e wmi drm ahci libahci
[ 6029.547957] CPU: 3 PID: 16210 Comm: tcpdump Tainted: G        WC  E     5.0.0-36-generic #39~18.04.1-Ubuntu
[ 6029.547959] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
[ 6029.547964] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
[ 6029.547968] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 91 1a b1 b3 e8 7b da da ff <0f> 0b 48 8b 05 72 ad 31 01 45 85 ff 49 89 84 24 c8
00 00 00 74 0f
[ 6029.547971] RSP: 0018:ffffb96c4a7abcc8 EFLAGS: 00010286
[ 6029.547974] RAX: 0000000000000000 RBX: ffffa081fd8d3858 RCX: 0000000000000006
[ 6029.547976] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffffa08321396440
[ 6029.547978] RBP: ffffb96c4a7abcf8 R08: 0000000000000a31 R09: 0000000000000004
[ 6029.547980] R10: 0000000000000000 R11: 0000000000000001 R12: ffffa08040454638
[ 6029.547982] R13: 0000000000000000 R14: ffffa080404546c0 R15: 0000000000000000
[ 6029.547986] FS:  00007f183b7a01c0(0000) GS:ffffa08321380000(0000) knlGS:0000000000000000
[ 6029.547988] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6029.547991] CR2: 00001029fba6d030 CR3: 000000051cd8a006 CR4: 00000000003606e0
[ 6029.547993] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6029.547995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 6029.547996] Call Trace:
[ 6029.548005]  fat_update_time+0x63/0xa0
[ 6029.548010]  file_update_time+0xe0/0x130
[ 6029.548018]  __generic_file_write_iter+0x9c/0x1d0
[ 6029.548024]  generic_file_write_iter+0xb2/0x150
[ 6029.548034]  new_sync_write+0x10c/0x170
[ 6029.548040]  __vfs_write+0x29/0x40
[ 6029.548045]  vfs_write+0xb1/0x1a0
[ 6029.548051]  ksys_write+0x5c/0xe0
[ 6029.548057]  __x64_sys_write+0x1a/0x20
[ 6029.548063]  do_syscall_64+0x5a/0x120
[ 6029.548068]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 6029.548072] RIP: 0033:0x7f183abc8154
[ 6029.548075] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89
d4 53 48 89 f5
[ 6029.548077] RSP: 002b:00007ffcc68466f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 6029.548081] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f183abc8154
[ 6029.548083] RDX: 0000000000001000 RSI: 00005575f1b7ece0 RDI: 0000000000000004
[ 6029.548085] RBP: 00005575f1b7ece0 R08: 00005575f1b70280 R09: 0000000000000056
[ 6029.548087] R10: 00005575f0f176d0 R11: 0000000000000246 R12: 00005575f1b70280
[ 6029.548089] R13: 0000000000001000 R14: 00007f183aea02a0 R15: 00007f183ae9f760
[ 6029.548093] ---[ end trace 389abc9f9445a322 ]---
[ 6029.548143] FAT-fs (sdb1): FAT read failed (blocknr 32)
[ 6029.548148] ------------[ cut here ]------------
[ 6029.548150] bdi-block not registered
[ 6029.548162] WARNING: CPU: 3 PID: 16210 at /build/linux-hwe-X76GcN/linux-hwe-5.0.0/fs/fs-writeback.c:2231 __mark_inode_dirty+0x215/0x3b0
[ 6029.548163] Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink ufs qnx4 hfsplus hfs minix ntfs msdos cpuid xfs jfs uas usb_storage snd_usb_audio snd_usbmidi_lib sctp hid_logitech_hidpp
hid_logitech_dj hid_generic usbhid hid ti_usb_3410_5052 ftdi_sio usbserial cdc_ether usbnet r8152 mii rfcomm twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common
serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 cast5_generic cast_common des_generic camellia_generic
camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 xcbc md4 algif_hash xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo cmac bnep binfmt_misc nls_iso8859_1 arc4
snd_hda_codec_hdmi btusb btrtl snd_hda_codec_realtek btbcm intel_rapl btintel snd_hda_codec_generic bluetooth x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_seq_midi ecdh_generic snd_hda_intel
snd_seq_midi_event iwlmvm
[ 6029.548214]  snd_hda_codec intel_cstate intel_rapl_perf snd_rawmidi mac80211 snd_hda_core joydev snd_hwdep input_leds rtsx_pci_ms serio_raw thinkpad_acpi snd_seq wmi_bmof snd_pcm memstick iwlwifi
nvram ledtrig_audio snd_seq_device snd_timer snd cfg80211 mei_me mei soundcore intel_pch_thermal mac_hid ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport xt_limit
xt_tcpudp xt_addrtype xt_conntrack sch_fq_codel ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat coretemp nf_conntrack_ftp parport_pc nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 ppdev iptable_filter lp parport binder_linux bpfilter ashmem_linux(CE) ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c algif_skcipher af_alg
dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel i915 aes_x86_64 crypto_simd cryptd glue_helper psmouse kvmgt vfio_mdev rtsx_pci
mdev vfio_iommu_type1 vfio kvm
[ 6029.548265]  irqbypass video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e wmi drm ahci libahci
[ 6029.548277] CPU: 3 PID: 16210 Comm: tcpdump Tainted: G        WC  E     5.0.0-36-generic #39~18.04.1-Ubuntu
[ 6029.548279] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
[ 6029.548282] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
[ 6029.548285] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 91 1a b1 b3 e8 7b da da ff <0f> 0b 48 8b 05 72 ad 31 01 45 85 ff 49 89 84 24 c8
00 00 00 74 0f
[ 6029.548287] RSP: 0018:ffffb96c4a7ab928 EFLAGS: 00010286
[ 6029.548290] RAX: 0000000000000000 RBX: ffffa081fd8d3858 RCX: 0000000000000006
[ 6029.548292] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffffa08321396440
[ 6029.548294] RBP: ffffb96c4a7ab958 R08: 0000000000000a5c R09: 0000000000000004
[ 6029.548296] R10: ffffb96c4a7ab8a0 R11: 0000000000000001 R12: ffffa08040455fd0
[ 6029.548298] R13: 0000000000000000 R14: ffffa08040456058 R15: 0000000000000000
[ 6029.548301] FS:  00007f183b7a01c0(0000) GS:ffffa08321380000(0000) knlGS:0000000000000000
[ 6029.548303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6029.548305] CR2: 00001029fba6d030 CR3: 000000051cd8a006 CR4: 00000000003606e0
[ 6029.548307] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6029.548309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 6029.548311] Call Trace:
[ 6029.548315]  mark_fsinfo_dirty+0x2f/0x40
[ 6029.548319]  fat_alloc_clusters+0x51d/0x5e0
[ 6029.548325]  ? get_page_from_freelist+0x154e/0x1560
[ 6029.548332]  ? _cond_resched+0x19/0x40
[ 6029.548338]  ? kmem_cache_alloc+0x1a9/0x1c0
[ 6029.548343]  fat_add_cluster+0x30/0x80
[ 6029.548346]  fat_get_block+0x135/0x250
[ 6029.548352]  __block_write_begin_int+0x133/0x590
[ 6029.548355]  ? fat_add_cluster+0x80/0x80
[ 6029.548359]  ? fat_add_cluster+0x80/0x80
[ 6029.548363]  block_write_begin+0x49/0xe0
[ 6029.548367]  ? do_invalid_op+0x3b/0x50
[ 6029.548371]  cont_write_begin+0x228/0x310
[ 6029.548374]  ? fat_add_cluster+0x80/0x80
[ 6029.548379]  fat_write_begin+0x37/0x70
[ 6029.548382]  ? fat_add_cluster+0x80/0x80
[ 6029.548388]  generic_perform_write+0xb3/0x1b0
[ 6029.548395]  __generic_file_write_iter+0x1aa/0x1d0
[ 6029.548401]  generic_file_write_iter+0xb2/0x150
[ 6029.548407]  new_sync_write+0x10c/0x170
[ 6029.548413]  __vfs_write+0x29/0x40
[ 6029.548418]  vfs_write+0xb1/0x1a0
[ 6029.548424]  ksys_write+0x5c/0xe0
[ 6029.548430]  __x64_sys_write+0x1a/0x20
[ 6029.548435]  do_syscall_64+0x5a/0x120
[ 6029.548439]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 6029.548441] RIP: 0033:0x7f183abc8154
[ 6029.548444] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89
d4 53 48 89 f5
[ 6029.548446] RSP: 002b:00007ffcc68466f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 6029.548449] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f183abc8154
[ 6029.548451] RDX: 0000000000001000 RSI: 00005575f1b7ece0 RDI: 0000000000000004
[ 6029.548453] RBP: 00005575f1b7ece0 R08: 00005575f1b70280 R09: 0000000000000056
[ 6029.548455] R10: 00005575f0f176d0 R11: 0000000000000246 R12: 00005575f1b70280
[ 6029.548457] R13: 0000000000001000 R14: 00007f183aea02a0 R15: 00007f183ae9f760
[ 6029.548460] ---[ end trace 389abc9f9445a323 ]---
[ 6029.548485] FAT-fs (sdb1): FAT read failed (blocknr 32)
[ 6029.548501] FAT-fs (sdb1): unable to read inode block for updating (i_pos 123137)
[ 6029.548517] ------------[ cut here ]------------



Kernel oops of #0 SMP PREEMPT Tue Aug 6 10:39:48 2019 aarch64 GNU/Linux




# tcpdump -w a.pcap
[ 6382.476394] device br-lan entered promiscuous mode
tcpdump: listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes
[ 6386.018721] usb 1-1: USB disconnect, device number 5
^C6 packets captur[ 6391.346853] device br-lan left promiscuous mode
ed
7 packets received by filter
0 packets dropped by kernel
[ 6391.396413] bdi-block not registered
[ 6391.399989] ------------[ cut here ]------------
[ 6391.404602] WARNING: CPU: 1 PID: 18359 at fs/fs-writeback.c:2206 __mark_inode_dirty+0x128/0x220
[ 6391.413287] Modules linked in: qcserial option ipw ebtable_nat ebtable_filter ebtable_broute cdc_mbim w1_therm usb_wwan usb_serial_simple ti_usb_3410_5052 sierra_net sierra rndis_host T
[ 6391.484059]  xt_NETMAP xt_LOG xt_FLOWOFFLOAD xt_CT x_tables wire visor usbserial usbnet ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cy2
[ 6391.554743]  uhci_hcd ohci_platform ohci_hcd ehci_pci fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd usbcore usb_common mii [last unloaded: compat]
[ 6391.567876] CPU: 1 PID: 18359 Comm: tcpdump Tainted: G        W       4.14.142 #0
[ 6391.575346] Hardware name: Sophos RED60 (DT)
[ 6391.579605] task: ffff8000013bc140 task.stack: ffff00000e610000
[ 6391.585515] PC is at __mark_inode_dirty+0x128/0x220
[ 6391.590381] LR is at __mark_inode_dirty+0x128/0x220
[ 6391.595247] pc : [<ffff000008224338>] lr : [<ffff000008224338>] pstate: 00400145
[ 6391.602630] sp : ffff00000e613bb0
[ 6391.605933] x29: ffff00000e613bb0 x28: ffff8000013bc140
[ 6391.611236] x27: ffff000008891000 x26: 0000000000000042
[ 6391.616538] x25: 0000000000000124 x24: ffff80002fc6c1c8
[ 6391.621840] x23: 0000000000000000 x22: 0000000000000000
[ 6391.627142] x21: 0000000000000001 x20: ffff80002fc6c148
[ 6391.632444] x19: ffff8000319e7858 x18: 0000000000000000
[ 6391.637746] x17: 0000ffffbf5785d8 x16: ffff0000081f5618
[ 6391.643047] x15: 0000000000000004 x14: 0000000000800000
[ 6391.648349] x13: 000000006474e551 x12: ffff00000981bf00
[ 6391.653651] x11: ffff00000e6138e0 x10: 0000000000000000
[ 6391.658952] x9 : ffffffffffffffff x8 : 0000000000000000
[ 6391.664254] x7 : 0000000000000007 x6 : 000000000000034b
[ 6391.669556] x5 : 0000000000000000 x4 : 0000000000000000
[ 6391.674858] x3 : 0000000000000000 x2 : ffff80003bd813f0
[ 6391.680160] x1 : ffff8000013bc140 x0 : 0000000000000018
[ 6391.685463] Call trace:
[ 6391.687900] Exception stack(0xffff00000e613a70 to 0xffff00000e613bb0)
[ 6391.694331] 3a60:                                   0000000000000018 ffff8000013bc140
[ 6391.702150] 3a80: ffff80003bd813f0 0000000000000000 0000000000000000 0000000000000000
[ 6391.709969] 3aa0: 000000000000034b 0000000000000007 0000000000000000 ffffffffffffffff
[ 6391.717788] 3ac0: 0000000000000000 ffff00000e6138e0 ffff00000981bf00 000000006474e551
[ 6391.725608] 3ae0: 0000000000800000 0000000000000004 ffff0000081f5618 0000ffffbf5785d8
[ 6391.733427] 3b00: 0000000000000000 ffff8000319e7858 ffff80002fc6c148 0000000000000001
[ 6391.741246] 3b20: 0000000000000000 0000000000000000 ffff80002fc6c1c8 0000000000000124
[ 6391.749065] 3b40: 0000000000000042 ffff000008891000 ffff8000013bc140 ffff00000e613bb0
[ 6391.756885] 3b60: ffff000008224338 ffff00000e613bb0 ffff000008224338 0000000000400145
[ 6391.764703] 3b80: 0000000000000000 0000000000000000 0000ffffffffffff 0039c5b028000000
[ 6391.772521] 3ba0: ffff00000e613bb0 ffff000008224338
[ 6391.777389] [<ffff000008224338>] __mark_inode_dirty+0x128/0x220
[ 6391.783299] [<ffff0000082129a0>] generic_update_time+0x90/0xa8
[ 6391.789121] [<ffff000008212cd8>] file_update_time+0xe0/0x100
[ 6391.794773] [<ffff0000081758b8>] __generic_file_write_iter+0x80/0x1b0
[ 6391.801202] [<ffff000008175b0c>] generic_file_write_iter+0x124/0x1d8
[ 6391.807546] [<ffff0000081f322c>] do_iter_readv_writev+0xec/0x130
[ 6391.813542] [<ffff0000081f3eec>] do_iter_write+0x7c/0x1d0
[ 6391.818930] [<ffff0000081f40e0>] vfs_writev+0x78/0xb8
[ 6391.823971] [<ffff0000081f4180>] do_writev+0x60/0xc0
[ 6391.828926] [<ffff0000081f5628>] SyS_writev+0x10/0x18
[ 6391.833966] Exception stack(0xffff00000e613ec0 to 0xffff00000e614000)
[ 6391.840396] 3ec0: 0000000000000004 0000fffffa394480 0000000000000002 0000ffffbf6225f8
[ 6391.848215] 3ee0: 0000000000000001 0000ffffbf660618 0000000000000000 000000007fffffff
[ 6391.856034] 3f00: 0000000000000042 000000000000000a 0000fffffa3942fc 00000000ffffffff
[ 6391.863852] 3f20: 0000ffffbf6623b7 000000006474e551 0000000000800000 0000000000000004
[ 6391.871672] 3f40: 00000000004d1dc0 0000ffffbf5785d8 0000000000000000 0000ffffbf5d0a00
[ 6391.879490] 3f60: 0000fffffa394480 00000000000002af 0000000000000000 0000000000000002
[ 6391.887309] 3f80: 0000000000000000 0000000000000000 00000000004d5000 0000ffffbf5d0a00
[ 6391.895129] 3fa0: 0000000000410e0c 0000fffffa394440 0000ffffbf62247c 0000fffffa394440
[ 6391.902947] 3fc0: 0000ffffbf622648 0000000020000000 0000000000000004 0000000000000042
[ 6391.910766] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 6391.918586] [<ffff000008083200>] el0_svc_naked+0x34/0x38
[ 6391.923886] ---[ end trace e567d7b7cb8ba10a ]---
[ 6391.928661] blk_partition_remap: fail for partition 1
[ 6391.933718] FAT-fs (sda1): FAT read failed (blocknr 32)
[ 6391.938944] bdi-block not registered
[ 6391.942534] ------------[ cut here ]------------
[ 6391.947144] WARNING: CPU: 1 PID: 18359 at fs/fs-writeback.c:2206 __mark_inode_dirty+0x128/0x220
[ 6391.955829] Modules linked in: qcserial option ipw ebtable_nat ebtable_filter ebtable_broute cdc_mbim w1_therm usb_wwan usb_serial_simple ti_usb_3410_5052 sierra_net sierra rndis_host T
[ 6392.026595]  xt_NETMAP xt_LOG xt_FLOWOFFLOAD xt_CT x_tables wire visor usbserial usbnet ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cy2
[ 6392.097270]  uhci_hcd ohci_platform ohci_hcd ehci_pci fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd usbcore usb_common mii [last unloaded: compat]
[ 6392.110402] CPU: 1 PID: 18359 Comm: tcpdump Tainted: G        W       4.14.142 #0
[ 6392.117872] Hardware name: Sophos RED60 (DT)
[ 6392.122131] task: ffff8000013bc140 task.stack: ffff00000e610000
[ 6392.128040] PC is at __mark_inode_dirty+0x128/0x220
[ 6392.132907] LR is at __mark_inode_dirty+0x128/0x220
[ 6392.137773] pc : [<ffff000008224338>] lr : [<ffff000008224338>] pstate: 00400145
[ 6392.145156] sp : ffff00000e6137f0
[ 6392.148459] x29: ffff00000e6137f0 x28: ffff80000125c800
[ 6392.153761] x27: ffff00000e61399c x26: 0000000000000000
[ 6392.159064] x25: 00000000fffffffb x24: ffff80002fc6ca38
[ 6392.164366] x23: 0000000000000000 x22: 0000000000000000
[ 6392.169668] x21: 0000000000000001 x20: ffff80002fc6c9b8
[ 6392.174971] x19: ffff8000319e7858 x18: 0000000000000000
[ 6392.180273] x17: 0000ffffbf5785d8 x16: ffff0000081f5618
[ 6392.185575] x15: 0000000000000004 x14: 0000000000800000
[ 6392.190877] x13: 000000006474e551 x12: ffff00000981bf00
[ 6392.196179] x11: ffff00000e613520 x10: 0000000000000000
[ 6392.201480] x9 : ffffffffffffffff x8 : 0000000000000000
[ 6392.206781] x7 : 0000000000000007 x6 : 000000000000038d
[ 6392.212084] x5 : 0000000000000000 x4 : 0000000000000000
[ 6392.217386] x3 : 0000000000000000 x2 : ffff80003bd813f0
[ 6392.222688] x1 : ffff8000013bc140 x0 : 0000000000000018
[ 6392.227990] Call trace:
[ 6392.230427] Exception stack(0xffff00000e6136b0 to 0xffff00000e6137f0)
[ 6392.236857] 36a0:                                   0000000000000018 ffff8000013bc140
[ 6392.244677] 36c0: ffff80003bd813f0 0000000000000000 0000000000000000 0000000000000000
[ 6392.252496] 36e0: 000000000000038d 0000000000000007 0000000000000000 ffffffffffffffff
[ 6392.260315] 3700: 0000000000000000 ffff00000e613520 ffff00000981bf00 000000006474e551
[ 6392.268134] 3720: 0000000000800000 0000000000000004 ffff0000081f5618 0000ffffbf5785d8
[ 6392.275953] 3740: 0000000000000000 ffff8000319e7858 ffff80002fc6c9b8 0000000000000001
[ 6392.283772] 3760: 0000000000000000 0000000000000000 ffff80002fc6ca38 00000000fffffffb
[ 6392.291591] 3780: 0000000000000000 ffff00000e61399c ffff80000125c800 ffff00000e6137f0
[ 6392.299410] 37a0: ffff000008224338 ffff00000e6137f0 ffff000008224338 0000000000400145
[ 6392.307229] 37c0: 0000000000000000 0000000000000000 0000ffffffffffff 0000000000000000
[ 6392.315047] 37e0: ffff00000e6137f0 ffff000008224338
[ 6392.319916] [<ffff000008224338>] __mark_inode_dirty+0x128/0x220
[ 6392.325826] [<ffff0000082da054>] mark_fsinfo_dirty+0x2c/0x40
[ 6392.331475] [<ffff0000082daad4>] fat_alloc_clusters+0x28c/0x398
[ 6392.337384] [<ffff0000082de2b4>] fat_add_cluster+0x1c/0x58
[ 6392.342859] [<ffff0000082de3f8>] fat_get_block+0x108/0x1e8
[ 6392.348335] [<ffff00000822e7e8>] __block_write_begin_int+0x160/0x520
[ 6392.354677] [<ffff00000822ec0c>] block_write_begin+0x4c/0xc8
[ 6392.360325] [<ffff00000822ef44>] cont_write_begin+0x2bc/0x2f0
[ 6392.366061] [<ffff0000082dd404>] fat_write_begin+0x3c/0x68
[ 6392.371537] [<ffff0000081718e8>] generic_perform_write+0x98/0x178
[ 6392.377619] [<ffff000008175970>] __generic_file_write_iter+0x138/0x1b0
[ 6392.384137] [<ffff000008175b0c>] generic_file_write_iter+0x124/0x1d8
[ 6392.390481] [<ffff0000081f322c>] do_iter_readv_writev+0xec/0x130
[ 6392.396477] [<ffff0000081f3eec>] do_iter_write+0x7c/0x1d0
[ 6392.401865] [<ffff0000081f40e0>] vfs_writev+0x78/0xb8
[ 6392.406906] [<ffff0000081f4180>] do_writev+0x60/0xc0
[ 6392.411861] [<ffff0000081f5628>] SyS_writev+0x10/0x18
[ 6392.416901] Exception stack(0xffff00000e613ec0 to 0xffff00000e614000)
[ 6392.423332] 3ec0: 0000000000000004 0000fffffa394480 0000000000000002 0000ffffbf6225f8
[ 6392.431151] 3ee0: 0000000000000001 0000ffffbf660618 0000000000000000 000000007fffffff
[ 6392.438970] 3f00: 0000000000000042 000000000000000a 0000fffffa3942fc 00000000ffffffff
[ 6392.446789] 3f20: 0000ffffbf6623b7 000000006474e551 0000000000800000 0000000000000004
[ 6392.454608] 3f40: 00000000004d1dc0 0000ffffbf5785d8 0000000000000000 0000ffffbf5d0a00
[ 6392.462427] 3f60: 0000fffffa394480 00000000000002af 0000000000000000 0000000000000002
[ 6392.470246] 3f80: 0000000000000000 0000000000000000 00000000004d5000 0000ffffbf5d0a00
[ 6392.478065] 3fa0: 0000000000410e0c 0000fffffa394440 0000ffffbf62247c 0000fffffa394440
[ 6392.485885] 3fc0: 0000ffffbf622648 0000000020000000 0000000000000004 0000000000000042
[ 6392.493703] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 6392.501524] [<ffff000008083200>] el0_svc_naked+0x34/0x38
[ 6392.506824] ---[ end trace e567d7b7cb8ba10b ]---


--
Markus Sattler
Software Engineer
Markus.Sattler@sophos.com

Sophos Technology GmbH
Amalienbadstr. 41/Bau 52, 76227 Karlsruhe, Germany
Sophos Technology GmbH, Commercial Register: Mannheim HRB 712658
Headquarter Location: Amalienbadstr. 41/Bau 52 | 76227 Karlsruhe | Germany
Executive Board: Nicholas Bray, Wolfgang Hilpert, Pino von Kienlin, Jenny Onslow

________________________________

Sophos Technology GmbH, Amalienbadstr. 41/Bau 52, D-76227 Karlsruhe, Deutschland
Tel +49 (0)721 25516 0 Fax +49 (0)721 25516 200 E-Mail info@sophos.de www.sophos.de
Sitz der Gesellschaft: Karlsruhe, Amtsgericht Mannheim HRB 712658
Geschäftsführer: Stuart Fillingham, Pino von Kienlin, Jacqueline Denton.
Sophos Technology GmbH, Gustav-Stresemann-Ring 1, 65189 Wiesbaden, Deutschland
Tel +49 (0) 611 5858-0 Fax +49 (0) 611 5858-1042 E-Mail info@sophos.de www.sophos.de
Sitz der Gesellschaft: Karlsruhe, Amtsgericht Mannheim HRB 712658
Geschäftsführer: Stuart Fillingham, Pino von Kienlin, Jacqueline Denton

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Kernel Oops wenn USB stick with FAT32 is unplugged wenn tcpdump is writing to it.
  2019-11-22 10:06 Kernel Oops wenn USB stick with FAT32 is unplugged wenn tcpdump is writing to it Markus Sattler
@ 2019-11-25  7:33 ` Markus Sattler
  0 siblings, 0 replies; 2+ messages in thread
From: Markus Sattler @ 2019-11-25  7:33 UTC (permalink / raw)
  To: viro; +Cc: Andreas Chmielewski, Heiko Hund, linux-fsdevel

Hi Alexander,

short update, we updated on machine to 5.3.0 and are still able to reproduce the problem.

5.3.0-23-generic #25~18.04.1-Ubuntu SMP Tue Nov 12 10:58:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Best Regards,

Markus

Kernel oops 5.3.0:


[ 1232.956433] device enp0s31f6 entered promiscuous mode
[ 1237.987618] usb 1-2: USB disconnect, device number 20
[ 1237.988325] blk_update_request: I/O error, dev sdb, sector 9752 op 0x1:(WRITE) flags 0x0 phys_seg 11 prio class 0
[ 1237.988382] blk_update_request: I/O error, dev sdb, sector 2049 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[ 1237.988389] Buffer I/O error on dev sdb1, logical block 1, lost async page write
[ 1237.988400] blk_update_request: I/O error, dev sdb, sector 2080 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[ 1237.988404] Buffer I/O error on dev sdb1, logical block 32, lost async page write
[ 1237.988450] blk_update_request: I/O error, dev sdb, sector 5912 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[ 1237.988453] Buffer I/O error on dev sdb1, logical block 3864, lost async page write
[ 1237.988459] blk_update_request: I/O error, dev sdb, sector 9744 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[ 1237.988462] Buffer I/O error on dev sdb1, logical block 7696, lost async page write
[ 1238.060094] ------------[ cut here ]------------
[ 1238.060097] bdi-block not registered
[ 1238.060113] WARNING: CPU: 2 PID: 10140 at /build/linux-hwe-edge-ixgf89/linux-hwe-edge-5.3.0/fs/fs-writeback.c:2235 __mark_inode_dirty+0x215/0x3b0
[ 1238.060114] Modules linked in: nfnetlink_queue(E) nfnetlink_log(E) nfnetlink(E) uas(E) usb_storage(E) hid_logitech_hidpp(E) hid_logitech_dj(E) ti_usb_3410_5052(E) twofish_generic(E)
twofish_avx_x86_64(E) twofish_x86_64_3way(E) twofish_x86_64(E) twofish_common(E) serpent_avx2(E) serpent_avx_x86_64(E) serpent_sse2_x86_64(E) serpent_generic(E) blowfish_generic(E) blowfish_x86_64(E)
blowfish_common(E) cast5_avx_x86_64(E) cast5_generic(E) cast_common(E) des_generic(E) camellia_generic(E) camellia_aesni_avx2(E) camellia_aesni_avx_x86_64(E) camellia_x86_64(E) xcbc(E) md4(E)
algif_hash(E) xfrm_user(E) xfrm4_tunnel(E) tunnel4(E) ipcomp(E) xfrm_ipcomp(E) esp4(E) ah4(E) af_key(E) xfrm_algo(E) rfcomm(E) cmac(E) bnep(E) binfmt_misc(E) nls_iso8859_1(E) intel_rapl_msr(E)
mei_hdcp(E) cdc_ether(E) usbnet(E) r8152(E) mii(E) snd_hda_codec_hdmi(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) snd_usb_audio(E) intel_powerclamp(E) ftdi_sio(E) snd_usbmidi_lib(E) mc(E)
usbserial(E) kvm_intel(E) kvm(E) btusb(E)
[ 1238.060157]  snd_hda_codec_realtek(E) snd_seq_midi(E) btrtl(E) irqbypass(E) snd_seq_midi_event(E) btbcm(E) snd_hda_codec_generic(E) btintel(E) intel_cstate(E) bluetooth(E) intel_rapl_perf(E)
iwlmvm(E) mac80211(E) ecdh_generic(E) snd_hda_intel(E) ecc(E) libarc4(E) snd_rawmidi(E) snd_hda_codec(E) joydev(E) snd_hda_core(E) iwlwifi(E) input_leds(E) snd_hwdep(E) serio_raw(E) snd_pcm(E)
snd_seq(E) rtsx_pci_ms(E) thinkpad_acpi(E) nvram(E) snd_seq_device(E) wmi_bmof(E) ledtrig_audio(E) memstick(E) cfg80211(E) snd_timer(E) mei_me(E) intel_pch_thermal(E) mei(E) snd(E) soundcore(E)
mac_hid(E) ip6t_REJECT(E) nf_reject_ipv6(E) xt_hl(E) ip6t_rt(E) ipt_REJECT(E) nf_reject_ipv4(E) xt_multiport(E) xt_limit(E) xt_tcpudp(E) xt_addrtype(E) xt_conntrack(E) sch_fq_codel(E)
ip6table_filter(E) ip6_tables(E) nf_conntrack_netbios_ns(E) nf_conntrack_broadcast(E) nf_nat_ftp(E) nf_nat(E) coretemp(E) nf_conntrack_ftp(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E)
parport_pc(E) ppdev(E) iptable_filter(E)
[ 1238.060187]  bpfilter(E) lp(E) parport(E) binder_linux(E) ashmem_linux(CE) ip_tables(E) x_tables(E) autofs4(E) btrfs(E) xor(E) zstd_compress(E) raid6_pq(E) libcrc32c(E) algif_skcipher(E) af_alg(E)
dm_crypt(E) dm_mirror(E) dm_region_hash(E) dm_log(E) hid_generic(E) usbhid(E) hid(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) rtsx_pci_sdmmc(E) aesni_intel(E) aes_x86_64(E)
crypto_simd(E) cryptd(E) glue_helper(E) psmouse(E) rtsx_pci(E) i915(E) ahci(E) libahci(E) i2c_algo_bit(E) e1000e(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) drm(E)
wmi(E) video(E)
[ 1238.060210] CPU: 2 PID: 10140 Comm: tcpdump Tainted: G         C  E     5.3.0-23-generic #25~18.04.1-Ubuntu
[ 1238.060210] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
[ 1238.060214] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
[ 1238.060215] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 23 97 b4 a9 e8 9b 91 d9 ff <0f> 0b 48 8b 05 72 44 30 01 45 85 ff 49 89 84 24 c8
00 00 00 74 0f
[ 1238.060216] RSP: 0018:ffffab914363fcc0 EFLAGS: 00010282
[ 1238.060218] RAX: 0000000000000000 RBX: ffff964c338c7058 RCX: 0000000000000006
[ 1238.060218] RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff964e21317440
[ 1238.060219] RBP: ffffab914363fcf0 R08: 0000000000000486 R09: 0000000000000004
[ 1238.060220] R10: 0000000000000000 R11: 0000000000000001 R12: ffff964be9ce73b8
[ 1238.060220] R13: 0000000000000000 R14: ffff964be9ce7440 R15: 0000000000000000
[ 1238.060221] FS:  00007fc1d47b11c0(0000) GS:ffff964e21300000(0000) knlGS:0000000000000000
[ 1238.060222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1238.060223] CR2: 000055d555eeb610 CR3: 000000057fae6005 CR4: 00000000003606e0
[ 1238.060224] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1238.060224] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1238.060225] Call Trace:
[ 1238.060231]  fat_update_time+0x63/0xa0
[ 1238.060234]  file_update_time+0xe0/0x130
[ 1238.060236]  __generic_file_write_iter+0x9c/0x1d0
[ 1238.060239]  ? fsnotify+0x2ed/0x380
[ 1238.060240]  generic_file_write_iter+0xbd/0x160
[ 1238.060242]  new_sync_write+0x125/0x1c0
[ 1238.060243]  __vfs_write+0x29/0x40
[ 1238.060244]  vfs_write+0xb1/0x1a0
[ 1238.060245]  ksys_write+0xa7/0xe0
[ 1238.060247]  __x64_sys_write+0x1a/0x20
[ 1238.060252]  do_syscall_64+0x5a/0x130
[ 1238.060257]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1238.060260] RIP: 0033:0x7fc1d3bd9154
[ 1238.060262] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89
d4 53 48 89 f5
[ 1238.060263] RSP: 002b:00007ffcbac4feb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1238.060264] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007fc1d3bd9154
[ 1238.060265] RDX: 0000000000001000 RSI: 000055bd1df7cce0 RDI: 0000000000000004
[ 1238.060265] RBP: 000055bd1df7cce0 R08: 000055bd1df6e280 R09: 0000000000000056
[ 1238.060266] R10: 000055bd1d0806d0 R11: 0000000000000246 R12: 000055bd1df6e280
[ 1238.060266] R13: 0000000000001000 R14: 00007fc1d3eb12a0 R15: 00007fc1d3eb0760
[ 1238.060268] ---[ end trace 9ef7c3502938dfcc ]---
[ 1238.060295] FAT-fs (sdb1): FAT read failed (blocknr 32)
[ 1238.060298] ------------[ cut here ]------------
[ 1238.060299] bdi-block not registered
[ 1238.060311] WARNING: CPU: 2 PID: 10140 at /build/linux-hwe-edge-ixgf89/linux-hwe-edge-5.3.0/fs/fs-writeback.c:2235 __mark_inode_dirty+0x215/0x3b0
[ 1238.060311] Modules linked in: nfnetlink_queue(E) nfnetlink_log(E) nfnetlink(E) uas(E) usb_storage(E) hid_logitech_hidpp(E) hid_logitech_dj(E) ti_usb_3410_5052(E) twofish_generic(E)
twofish_avx_x86_64(E) twofish_x86_64_3way(E) twofish_x86_64(E) twofish_common(E) serpent_avx2(E) serpent_avx_x86_64(E) serpent_sse2_x86_64(E) serpent_generic(E) blowfish_generic(E) blowfish_x86_64(E)
blowfish_common(E) cast5_avx_x86_64(E) cast5_generic(E) cast_common(E) des_generic(E) camellia_generic(E) camellia_aesni_avx2(E) camellia_aesni_avx_x86_64(E) camellia_x86_64(E) xcbc(E) md4(E)
algif_hash(E) xfrm_user(E) xfrm4_tunnel(E) tunnel4(E) ipcomp(E) xfrm_ipcomp(E) esp4(E) ah4(E) af_key(E) xfrm_algo(E) rfcomm(E) cmac(E) bnep(E) binfmt_misc(E) nls_iso8859_1(E) intel_rapl_msr(E)
mei_hdcp(E) cdc_ether(E) usbnet(E) r8152(E) mii(E) snd_hda_codec_hdmi(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) snd_usb_audio(E) intel_powerclamp(E) ftdi_sio(E) snd_usbmidi_lib(E) mc(E)
usbserial(E) kvm_intel(E) kvm(E) btusb(E)
[ 1238.060331]  snd_hda_codec_realtek(E) snd_seq_midi(E) btrtl(E) irqbypass(E) snd_seq_midi_event(E) btbcm(E) snd_hda_codec_generic(E) btintel(E) intel_cstate(E) bluetooth(E) intel_rapl_perf(E)
iwlmvm(E) mac80211(E) ecdh_generic(E) snd_hda_intel(E) ecc(E) libarc4(E) snd_rawmidi(E) snd_hda_codec(E) joydev(E) snd_hda_core(E) iwlwifi(E) input_leds(E) snd_hwdep(E) serio_raw(E) snd_pcm(E)
snd_seq(E) rtsx_pci_ms(E) thinkpad_acpi(E) nvram(E) snd_seq_device(E) wmi_bmof(E) ledtrig_audio(E) memstick(E) cfg80211(E) snd_timer(E) mei_me(E) intel_pch_thermal(E) mei(E) snd(E) soundcore(E)
mac_hid(E) ip6t_REJECT(E) nf_reject_ipv6(E) xt_hl(E) ip6t_rt(E) ipt_REJECT(E) nf_reject_ipv4(E) xt_multiport(E) xt_limit(E) xt_tcpudp(E) xt_addrtype(E) xt_conntrack(E) sch_fq_codel(E)
ip6table_filter(E) ip6_tables(E) nf_conntrack_netbios_ns(E) nf_conntrack_broadcast(E) nf_nat_ftp(E) nf_nat(E) coretemp(E) nf_conntrack_ftp(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E)
parport_pc(E) ppdev(E) iptable_filter(E)
[ 1238.060350]  bpfilter(E) lp(E) parport(E) binder_linux(E) ashmem_linux(CE) ip_tables(E) x_tables(E) autofs4(E) btrfs(E) xor(E) zstd_compress(E) raid6_pq(E) libcrc32c(E) algif_skcipher(E) af_alg(E)
dm_crypt(E) dm_mirror(E) dm_region_hash(E) dm_log(E) hid_generic(E) usbhid(E) hid(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) rtsx_pci_sdmmc(E) aesni_intel(E) aes_x86_64(E)
crypto_simd(E) cryptd(E) glue_helper(E) psmouse(E) rtsx_pci(E) i915(E) ahci(E) libahci(E) i2c_algo_bit(E) e1000e(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) drm(E)
wmi(E) video(E)
[ 1238.060375] CPU: 2 PID: 10140 Comm: tcpdump Tainted: G        WC  E     5.3.0-23-generic #25~18.04.1-Ubuntu
[ 1238.060376] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
[ 1238.060378] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
[ 1238.060380] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 23 97 b4 a9 e8 9b 91 d9 ff <0f> 0b 48 8b 05 72 44 30 01 45 85 ff 49 89 84 24 c8
00 00 00 74 0f
[ 1238.060381] RSP: 0018:ffffab914363f918 EFLAGS: 00010286
[ 1238.060382] RAX: 0000000000000000 RBX: ffff964c338c7058 RCX: 0000000000000006
[ 1238.060382] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff964e21317440
[ 1238.060383] RBP: ffffab914363f948 R08: 00000000000004b2 R09: 0000000000000004
[ 1238.060384] R10: ffffab914363f890 R11: 0000000000000001 R12: ffff964de65cc638
[ 1238.060384] R13: 0000000000000000 R14: ffff964de65cc6c0 R15: 0000000000000000
[ 1238.060385] FS:  00007fc1d47b11c0(0000) GS:ffff964e21300000(0000) knlGS:0000000000000000
[ 1238.060386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1238.060386] CR2: 000055d555eeb610 CR3: 000000057fae6005 CR4: 00000000003606e0
[ 1238.060387] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1238.060388] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1238.060388] Call Trace:
[ 1238.060392]  mark_fsinfo_dirty+0x2f/0x40
[ 1238.060393]  fat_alloc_clusters+0x51d/0x5e0
[ 1238.060396]  ? _cond_resched+0x19/0x40
[ 1238.060398]  fat_add_cluster+0x30/0x80
[ 1238.060400]  ? alloc_buffer_head+0x21/0x60
[ 1238.060401]  fat_get_block+0xe8/0x270
[ 1238.060403]  __block_write_begin_int+0x133/0x590
[ 1238.060405]  ? fat_add_cluster+0x80/0x80
[ 1238.060406]  ? fat_add_cluster+0x80/0x80
[ 1238.060407]  block_write_begin+0x49/0xe0
[ 1238.060409]  cont_write_begin+0x228/0x310
[ 1238.060410]  ? fat_add_cluster+0x80/0x80
[ 1238.060412]  fat_write_begin+0x37/0x70
[ 1238.060413]  ? fat_add_cluster+0x80/0x80
[ 1238.060416]  generic_perform_write+0xb3/0x1b0
[ 1238.060418]  __generic_file_write_iter+0x1aa/0x1d0
[ 1238.060419]  ? fsnotify+0x2ed/0x380
[ 1238.060420]  generic_file_write_iter+0xbd/0x160
[ 1238.060422]  new_sync_write+0x125/0x1c0
[ 1238.060423]  __vfs_write+0x29/0x40
[ 1238.060424]  vfs_write+0xb1/0x1a0
[ 1238.060426]  ksys_write+0xa7/0xe0
[ 1238.060427]  __x64_sys_write+0x1a/0x20
[ 1238.060429]  do_syscall_64+0x5a/0x130
[ 1238.060432]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1238.060433] RIP: 0033:0x7fc1d3bd9154
[ 1238.060434] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89
d4 53 48 89 f5
[ 1238.060435] RSP: 002b:00007ffcbac4feb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1238.060436] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007fc1d3bd9154
[ 1238.060436] RDX: 0000000000001000 RSI: 000055bd1df7cce0 RDI: 0000000000000004
[ 1238.060437] RBP: 000055bd1df7cce0 R08: 000055bd1df6e280 R09: 0000000000000056
[ 1238.060438] R10: 000055bd1d0806d0 R11: 0000000000000246 R12: 000055bd1df6e280
[ 1238.060438] R13: 0000000000001000 R14: 00007fc1d3eb12a0 R15: 00007fc1d3eb0760
[ 1238.060440] ---[ end trace 9ef7c3502938dfcd ]---
[ 1238.060453] FAT-fs (sdb1): FAT read failed (blocknr 32)
[ 1238.060460] FAT-fs (sdb1): unable to read inode block for updating (i_pos 123137)
[ 1238.060470] ------------[ cut here ]------------
[ 1238.060471] bdi-block not registered
[ 1238.060480] WARNING: CPU: 2 PID: 10140 at /build/linux-hwe-edge-ixgf89/linux-hwe-edge-5.3.0/fs/fs-writeback.c:2235 __mark_inode_dirty+0x215/0x3b0
[ 1238.060481] Modules linked in: nfnetlink_queue(E) nfnetlink_log(E) nfnetlink(E) uas(E) usb_storage(E) hid_logitech_hidpp(E) hid_logitech_dj(E) ti_usb_3410_5052(E) twofish_generic(E)
twofish_avx_x86_64(E) twofish_x86_64_3way(E) twofish_x86_64(E) twofish_common(E) serpent_avx2(E) serpent_avx_x86_64(E) serpent_sse2_x86_64(E) serpent_generic(E) blowfish_generic(E) blowfish_x86_64(E)
blowfish_common(E) cast5_avx_x86_64(E) cast5_generic(E) cast_common(E) des_generic(E) camellia_generic(E) camellia_aesni_avx2(E) camellia_aesni_avx_x86_64(E) camellia_x86_64(E) xcbc(E) md4(E)
algif_hash(E) xfrm_user(E) xfrm4_tunnel(E) tunnel4(E) ipcomp(E) xfrm_ipcomp(E) esp4(E) ah4(E) af_key(E) xfrm_algo(E) rfcomm(E) cmac(E) bnep(E) binfmt_misc(E) nls_iso8859_1(E) intel_rapl_msr(E)
mei_hdcp(E) cdc_ether(E) usbnet(E) r8152(E) mii(E) snd_hda_codec_hdmi(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) snd_usb_audio(E) intel_powerclamp(E) ftdi_sio(E) snd_usbmidi_lib(E) mc(E)
usbserial(E) kvm_intel(E) kvm(E) btusb(E)
[ 1238.060506]  snd_hda_codec_realtek(E) snd_seq_midi(E) btrtl(E) irqbypass(E) snd_seq_midi_event(E) btbcm(E) snd_hda_codec_generic(E) btintel(E) intel_cstate(E) bluetooth(E) intel_rapl_perf(E)
iwlmvm(E) mac80211(E) ecdh_generic(E) snd_hda_intel(E) ecc(E) libarc4(E) snd_rawmidi(E) snd_hda_codec(E) joydev(E) snd_hda_core(E) iwlwifi(E) input_leds(E) snd_hwdep(E) serio_raw(E) snd_pcm(E)
snd_seq(E) rtsx_pci_ms(E) thinkpad_acpi(E) nvram(E) snd_seq_device(E) wmi_bmof(E) ledtrig_audio(E) memstick(E) cfg80211(E) snd_timer(E) mei_me(E) intel_pch_thermal(E) mei(E) snd(E) soundcore(E)
mac_hid(E) ip6t_REJECT(E) nf_reject_ipv6(E) xt_hl(E) ip6t_rt(E) ipt_REJECT(E) nf_reject_ipv4(E) xt_multiport(E) xt_limit(E) xt_tcpudp(E) xt_addrtype(E) xt_conntrack(E) sch_fq_codel(E)
ip6table_filter(E) ip6_tables(E) nf_conntrack_netbios_ns(E) nf_conntrack_broadcast(E) nf_nat_ftp(E) nf_nat(E) coretemp(E) nf_conntrack_ftp(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E)
parport_pc(E) ppdev(E) iptable_filter(E)
[ 1238.060527]  bpfilter(E) lp(E) parport(E) binder_linux(E) ashmem_linux(CE) ip_tables(E) x_tables(E) autofs4(E) btrfs(E) xor(E) zstd_compress(E) raid6_pq(E) libcrc32c(E) algif_skcipher(E) af_alg(E)
dm_crypt(E) dm_mirror(E) dm_region_hash(E) dm_log(E) hid_generic(E) usbhid(E) hid(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) rtsx_pci_sdmmc(E) aesni_intel(E) aes_x86_64(E)
crypto_simd(E) cryptd(E) glue_helper(E) psmouse(E) rtsx_pci(E) i915(E) ahci(E) libahci(E) i2c_algo_bit(E) e1000e(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) drm(E)
wmi(E) video(E)
[ 1238.060543] CPU: 2 PID: 10140 Comm: tcpdump Tainted: G        WC  E     5.3.0-23-generic #25~18.04.1-Ubuntu
[ 1238.060544] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
[ 1238.060547] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
[ 1238.060548] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 23 97 b4 a9 e8 9b 91 d9 ff <0f> 0b 48 8b 05 72 44 30 01 45 85 ff 49 89 84 24 c8
00 00 00 74 0f
[ 1238.060549] RSP: 0018:ffffab914363fcc0 EFLAGS: 00010282
[ 1238.060550] RAX: 0000000000000000 RBX: ffff964c338c7058 RCX: 0000000000000006
[ 1238.060551] RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff964e21317440
[ 1238.060552] RBP: ffffab914363fcf0 R08: 00000000000004ec R09: 0000000000000004
[ 1238.060553] R10: 0000000000000000 R11: 0000000000000001 R12: ffff964be9ce73b8
[ 1238.060554] R13: 0000000000000000 R14: ffff964be9ce7440 R15: 0000000000000000
[ 1238.060554] FS:  00007fc1d47b11c0(0000) GS:ffff964e21300000(0000) knlGS:0000000000000000
[ 1238.060555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1238.060556] CR2: 000055d555eeb610 CR3: 000000057fae6005 CR4: 00000000003606e0
[ 1238.060556] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1238.060557] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1238.060558] Call Trace:
[ 1238.060561]  fat_update_time+0x63/0xa0
[ 1238.060563]  file_update_time+0xe0/0x130
[ 1238.060566]  __generic_file_write_iter+0x9c/0x1d0
[ 1238.060568]  ? fsnotify+0x2ed/0x380
[ 1238.060569]  generic_file_write_iter+0xbd/0x160
[ 1238.060571]  new_sync_write+0x125/0x1c0
[ 1238.060573]  __vfs_write+0x29/0x40
[ 1238.060574]  vfs_write+0xb1/0x1a0
[ 1238.060575]  ksys_write+0xa7/0xe0
[ 1238.060577]  __x64_sys_write+0x1a/0x20
[ 1238.060593]  do_syscall_64+0x5a/0x130
[ 1238.060596]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1238.060597] RIP: 0033:0x7fc1d3bd9154
[ 1238.060599] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89
d4 53 48 89 f5
[ 1238.060599] RSP: 002b:00007ffcbac4feb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1238.060600] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007fc1d3bd9154
[ 1238.060601] RDX: 0000000000001000 RSI: 000055bd1df7cce0 RDI: 0000000000000004
[ 1238.060601] RBP: 000055bd1df7cce0 R08: 000055bd1df6e280 R09: 0000000000000056
[ 1238.060602] R10: 000055bd1d0806d0 R11: 0000000000000246 R12: 000055bd1df6e280
[ 1238.060602] R13: 0000000000001000 R14: 00007fc1d3eb12a0 R15: 00007fc1d3eb0760
[ 1238.060604] ---[ end trace 9ef7c3502938dfce ]---




On Fri, 2019-11-22 at 11:06 +0100, Sattler Markus wrote:
> Hi Alexander,
>
> we found a oops when tcpdump is used to write to a file on a USB stick and then unplugging the USB stick.
> this were tested and reproducible on every system that we had on hand,
> this includes different platforms (x86_64 / arm).
>
>
> uname -a of the systems:
>
> 4.14.142 #0 SMP PREEMPT Tue Aug 6 10:39:48 2019 aarch64 GNU/Linux
> 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
> 5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
>
>
> steps to reproduce:
>
> - create FAT32 USB stick
> - mount USB stick
> - run "sudo tcpdump -w <USB stick path>/tcpdump.pcap"
> - unplug USB stick
>
>
> If more info is needed feel free to ask.
>
> Best Regards,
>
> Markus
>
>
> Kernel oops of 5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
>
>
> [ 6029.049374] usb 1-2: USB disconnect, device number 23
> [ 6029.050234] print_req_error: I/O error, dev sdb, sector 9752 flags 1
> [ 6029.050332] print_req_error: I/O error, dev sdb, sector 2049 flags 1
> [ 6029.050341] Buffer I/O error on dev sdb1, logical block 1, lost async page write
> [ 6029.050356] print_req_error: I/O error, dev sdb, sector 2080 flags 1
> [ 6029.050359] Buffer I/O error on dev sdb1, logical block 32, lost async page write
> [ 6029.050388] print_req_error: I/O error, dev sdb, sector 5912 flags 1
> [ 6029.050391] Buffer I/O error on dev sdb1, logical block 3864, lost async page write
> [ 6029.050397] print_req_error: I/O error, dev sdb, sector 9744 flags 1
> [ 6029.050400] Buffer I/O error on dev sdb1, logical block 7696, lost async page write
> [ 6029.547787] ------------[ cut here ]------------
> [ 6029.547790] bdi-block not registered
> [ 6029.547817] WARNING: CPU: 3 PID: 16210 at /build/linux-hwe-X76GcN/linux-hwe-5.0.0/fs/fs-writeback.c:2231 __mark_inode_dirty+0x215/0x3b0
> [ 6029.547818] Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink ufs qnx4 hfsplus hfs minix ntfs msdos cpuid xfs jfs uas usb_storage snd_usb_audio snd_usbmidi_lib sctp hid_logitech_hidpp
> hid_logitech_dj hid_generic usbhid hid ti_usb_3410_5052 ftdi_sio usbserial cdc_ether usbnet r8152 mii rfcomm twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common
> serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 cast5_generic cast_common des_generic camellia_generic
> camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 xcbc md4 algif_hash xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo cmac bnep binfmt_misc nls_iso8859_1 arc4
> snd_hda_codec_hdmi btusb btrtl snd_hda_codec_realtek btbcm intel_rapl btintel snd_hda_codec_generic bluetooth x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_seq_midi ecdh_generic snd_hda_intel
> snd_seq_midi_event iwlmvm
> [ 6029.547878]  snd_hda_codec intel_cstate intel_rapl_perf snd_rawmidi mac80211 snd_hda_core joydev snd_hwdep input_leds rtsx_pci_ms serio_raw thinkpad_acpi snd_seq wmi_bmof snd_pcm memstick iwlwifi
> nvram ledtrig_audio snd_seq_device snd_timer snd cfg80211 mei_me mei soundcore intel_pch_thermal mac_hid ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport xt_limit
> xt_tcpudp xt_addrtype xt_conntrack sch_fq_codel ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat coretemp nf_conntrack_ftp parport_pc nf_conntrack
> nf_defrag_ipv6 nf_defrag_ipv4 ppdev iptable_filter lp parport binder_linux bpfilter ashmem_linux(CE) ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c algif_skcipher af_alg
> dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel i915 aes_x86_64 crypto_simd cryptd glue_helper psmouse kvmgt vfio_mdev rtsx_pci
> mdev vfio_iommu_type1 vfio kvm
> [ 6029.547942]  irqbypass video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e wmi drm ahci libahci
> [ 6029.547957] CPU: 3 PID: 16210 Comm: tcpdump Tainted: G        WC  E     5.0.0-36-generic #39~18.04.1-Ubuntu
> [ 6029.547959] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
> [ 6029.547964] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
> [ 6029.547968] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 91 1a b1 b3 e8 7b da da ff <0f> 0b 48 8b 05 72 ad 31 01 45 85 ff 49 89 84 24
> c8
> 00 00 00 74 0f
> [ 6029.547971] RSP: 0018:ffffb96c4a7abcc8 EFLAGS: 00010286
> [ 6029.547974] RAX: 0000000000000000 RBX: ffffa081fd8d3858 RCX: 0000000000000006
> [ 6029.547976] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffffa08321396440
> [ 6029.547978] RBP: ffffb96c4a7abcf8 R08: 0000000000000a31 R09: 0000000000000004
> [ 6029.547980] R10: 0000000000000000 R11: 0000000000000001 R12: ffffa08040454638
> [ 6029.547982] R13: 0000000000000000 R14: ffffa080404546c0 R15: 0000000000000000
> [ 6029.547986] FS:  00007f183b7a01c0(0000) GS:ffffa08321380000(0000) knlGS:0000000000000000
> [ 6029.547988] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 6029.547991] CR2: 00001029fba6d030 CR3: 000000051cd8a006 CR4: 00000000003606e0
> [ 6029.547993] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 6029.547995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 6029.547996] Call Trace:
> [ 6029.548005]  fat_update_time+0x63/0xa0
> [ 6029.548010]  file_update_time+0xe0/0x130
> [ 6029.548018]  __generic_file_write_iter+0x9c/0x1d0
> [ 6029.548024]  generic_file_write_iter+0xb2/0x150
> [ 6029.548034]  new_sync_write+0x10c/0x170
> [ 6029.548040]  __vfs_write+0x29/0x40
> [ 6029.548045]  vfs_write+0xb1/0x1a0
> [ 6029.548051]  ksys_write+0x5c/0xe0
> [ 6029.548057]  __x64_sys_write+0x1a/0x20
> [ 6029.548063]  do_syscall_64+0x5a/0x120
> [ 6029.548068]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
> [ 6029.548072] RIP: 0033:0x7f183abc8154
> [ 6029.548075] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49
> 89
> d4 53 48 89 f5
> [ 6029.548077] RSP: 002b:00007ffcc68466f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
> [ 6029.548081] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f183abc8154
> [ 6029.548083] RDX: 0000000000001000 RSI: 00005575f1b7ece0 RDI: 0000000000000004
> [ 6029.548085] RBP: 00005575f1b7ece0 R08: 00005575f1b70280 R09: 0000000000000056
> [ 6029.548087] R10: 00005575f0f176d0 R11: 0000000000000246 R12: 00005575f1b70280
> [ 6029.548089] R13: 0000000000001000 R14: 00007f183aea02a0 R15: 00007f183ae9f760
> [ 6029.548093] ---[ end trace 389abc9f9445a322 ]---
> [ 6029.548143] FAT-fs (sdb1): FAT read failed (blocknr 32)
> [ 6029.548148] ------------[ cut here ]------------
> [ 6029.548150] bdi-block not registered
> [ 6029.548162] WARNING: CPU: 3 PID: 16210 at /build/linux-hwe-X76GcN/linux-hwe-5.0.0/fs/fs-writeback.c:2231 __mark_inode_dirty+0x215/0x3b0
> [ 6029.548163] Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink ufs qnx4 hfsplus hfs minix ntfs msdos cpuid xfs jfs uas usb_storage snd_usb_audio snd_usbmidi_lib sctp hid_logitech_hidpp
> hid_logitech_dj hid_generic usbhid hid ti_usb_3410_5052 ftdi_sio usbserial cdc_ether usbnet r8152 mii rfcomm twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common
> serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 cast5_generic cast_common des_generic camellia_generic
> camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 xcbc md4 algif_hash xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo cmac bnep binfmt_misc nls_iso8859_1 arc4
> snd_hda_codec_hdmi btusb btrtl snd_hda_codec_realtek btbcm intel_rapl btintel snd_hda_codec_generic bluetooth x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_seq_midi ecdh_generic snd_hda_intel
> snd_seq_midi_event iwlmvm
> [ 6029.548214]  snd_hda_codec intel_cstate intel_rapl_perf snd_rawmidi mac80211 snd_hda_core joydev snd_hwdep input_leds rtsx_pci_ms serio_raw thinkpad_acpi snd_seq wmi_bmof snd_pcm memstick iwlwifi
> nvram ledtrig_audio snd_seq_device snd_timer snd cfg80211 mei_me mei soundcore intel_pch_thermal mac_hid ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport xt_limit
> xt_tcpudp xt_addrtype xt_conntrack sch_fq_codel ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat coretemp nf_conntrack_ftp parport_pc nf_conntrack
> nf_defrag_ipv6 nf_defrag_ipv4 ppdev iptable_filter lp parport binder_linux bpfilter ashmem_linux(CE) ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c algif_skcipher af_alg
> dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel i915 aes_x86_64 crypto_simd cryptd glue_helper psmouse kvmgt vfio_mdev rtsx_pci
> mdev vfio_iommu_type1 vfio kvm
> [ 6029.548265]  irqbypass video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e wmi drm ahci libahci
> [ 6029.548277] CPU: 3 PID: 16210 Comm: tcpdump Tainted: G        WC  E     5.0.0-36-generic #39~18.04.1-Ubuntu
> [ 6029.548279] Hardware name: LENOVO 20FXS16N0E/20FXS16N0E, BIOS R07ET88W (2.28 ) 01/18/2019
> [ 6029.548282] RIP: 0010:__mark_inode_dirty+0x215/0x3b0
> [ 6029.548285] Code: e8 b0 fa ff ff 48 89 c3 48 8b 00 f6 40 3c 02 75 1b 48 8b 53 08 83 e2 01 75 12 48 8b 70 30 48 c7 c7 91 1a b1 b3 e8 7b da da ff <0f> 0b 48 8b 05 72 ad 31 01 45 85 ff 49 89 84 24
> c8
> 00 00 00 74 0f
> [ 6029.548287] RSP: 0018:ffffb96c4a7ab928 EFLAGS: 00010286
> [ 6029.548290] RAX: 0000000000000000 RBX: ffffa081fd8d3858 RCX: 0000000000000006
> [ 6029.548292] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffffa08321396440
> [ 6029.548294] RBP: ffffb96c4a7ab958 R08: 0000000000000a5c R09: 0000000000000004
> [ 6029.548296] R10: ffffb96c4a7ab8a0 R11: 0000000000000001 R12: ffffa08040455fd0
> [ 6029.548298] R13: 0000000000000000 R14: ffffa08040456058 R15: 0000000000000000
> [ 6029.548301] FS:  00007f183b7a01c0(0000) GS:ffffa08321380000(0000) knlGS:0000000000000000
> [ 6029.548303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 6029.548305] CR2: 00001029fba6d030 CR3: 000000051cd8a006 CR4: 00000000003606e0
> [ 6029.548307] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 6029.548309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 6029.548311] Call Trace:
> [ 6029.548315]  mark_fsinfo_dirty+0x2f/0x40
> [ 6029.548319]  fat_alloc_clusters+0x51d/0x5e0
> [ 6029.548325]  ? get_page_from_freelist+0x154e/0x1560
> [ 6029.548332]  ? _cond_resched+0x19/0x40
> [ 6029.548338]  ? kmem_cache_alloc+0x1a9/0x1c0
> [ 6029.548343]  fat_add_cluster+0x30/0x80
> [ 6029.548346]  fat_get_block+0x135/0x250
> [ 6029.548352]  __block_write_begin_int+0x133/0x590
> [ 6029.548355]  ? fat_add_cluster+0x80/0x80
> [ 6029.548359]  ? fat_add_cluster+0x80/0x80
> [ 6029.548363]  block_write_begin+0x49/0xe0
> [ 6029.548367]  ? do_invalid_op+0x3b/0x50
> [ 6029.548371]  cont_write_begin+0x228/0x310
> [ 6029.548374]  ? fat_add_cluster+0x80/0x80
> [ 6029.548379]  fat_write_begin+0x37/0x70
> [ 6029.548382]  ? fat_add_cluster+0x80/0x80
> [ 6029.548388]  generic_perform_write+0xb3/0x1b0
> [ 6029.548395]  __generic_file_write_iter+0x1aa/0x1d0
> [ 6029.548401]  generic_file_write_iter+0xb2/0x150
> [ 6029.548407]  new_sync_write+0x10c/0x170
> [ 6029.548413]  __vfs_write+0x29/0x40
> [ 6029.548418]  vfs_write+0xb1/0x1a0
> [ 6029.548424]  ksys_write+0x5c/0xe0
> [ 6029.548430]  __x64_sys_write+0x1a/0x20
> [ 6029.548435]  do_syscall_64+0x5a/0x120
> [ 6029.548439]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
> [ 6029.548441] RIP: 0033:0x7f183abc8154
> [ 6029.548444] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49
> 89
> d4 53 48 89 f5
> [ 6029.548446] RSP: 002b:00007ffcc68466f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
> [ 6029.548449] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f183abc8154
> [ 6029.548451] RDX: 0000000000001000 RSI: 00005575f1b7ece0 RDI: 0000000000000004
> [ 6029.548453] RBP: 00005575f1b7ece0 R08: 00005575f1b70280 R09: 0000000000000056
> [ 6029.548455] R10: 00005575f0f176d0 R11: 0000000000000246 R12: 00005575f1b70280
> [ 6029.548457] R13: 0000000000001000 R14: 00007f183aea02a0 R15: 00007f183ae9f760
> [ 6029.548460] ---[ end trace 389abc9f9445a323 ]---
> [ 6029.548485] FAT-fs (sdb1): FAT read failed (blocknr 32)
> [ 6029.548501] FAT-fs (sdb1): unable to read inode block for updating (i_pos 123137)
> [ 6029.548517] ------------[ cut here ]------------
>
>
>
> Kernel oops of #0 SMP PREEMPT Tue Aug 6 10:39:48 2019 aarch64 GNU/Linux
>
>
>
>
> # tcpdump -w a.pcap
> [ 6382.476394] device br-lan entered promiscuous mode
> tcpdump: listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes
> [ 6386.018721] usb 1-1: USB disconnect, device number 5
> ^C6 packets captur[ 6391.346853] device br-lan left promiscuous mode
> ed
> 7 packets received by filter
> 0 packets dropped by kernel
> [ 6391.396413] bdi-block not registered
> [ 6391.399989] ------------[ cut here ]------------
> [ 6391.404602] WARNING: CPU: 1 PID: 18359 at fs/fs-writeback.c:2206 __mark_inode_dirty+0x128/0x220
> [ 6391.413287] Modules linked in: qcserial option ipw ebtable_nat ebtable_filter ebtable_broute cdc_mbim w1_therm usb_wwan usb_serial_simple ti_usb_3410_5052 sierra_net sierra rndis_host T
> [ 6391.484059]  xt_NETMAP xt_LOG xt_FLOWOFFLOAD xt_CT x_tables wire visor usbserial usbnet ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cy2
> [ 6391.554743]  uhci_hcd ohci_platform ohci_hcd ehci_pci fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd usbcore usb_common mii [last unloaded: compat]
> [ 6391.567876] CPU: 1 PID: 18359 Comm: tcpdump Tainted: G        W       4.14.142 #0
> [ 6391.575346] Hardware name: Sophos RED60 (DT)
> [ 6391.579605] task: ffff8000013bc140 task.stack: ffff00000e610000
> [ 6391.585515] PC is at __mark_inode_dirty+0x128/0x220
> [ 6391.590381] LR is at __mark_inode_dirty+0x128/0x220
> [ 6391.595247] pc : [<ffff000008224338>] lr : [<ffff000008224338>] pstate: 00400145
> [ 6391.602630] sp : ffff00000e613bb0
> [ 6391.605933] x29: ffff00000e613bb0 x28: ffff8000013bc140
> [ 6391.611236] x27: ffff000008891000 x26: 0000000000000042
> [ 6391.616538] x25: 0000000000000124 x24: ffff80002fc6c1c8
> [ 6391.621840] x23: 0000000000000000 x22: 0000000000000000
> [ 6391.627142] x21: 0000000000000001 x20: ffff80002fc6c148
> [ 6391.632444] x19: ffff8000319e7858 x18: 0000000000000000
> [ 6391.637746] x17: 0000ffffbf5785d8 x16: ffff0000081f5618
> [ 6391.643047] x15: 0000000000000004 x14: 0000000000800000
> [ 6391.648349] x13: 000000006474e551 x12: ffff00000981bf00
> [ 6391.653651] x11: ffff00000e6138e0 x10: 0000000000000000
> [ 6391.658952] x9 : ffffffffffffffff x8 : 0000000000000000
> [ 6391.664254] x7 : 0000000000000007 x6 : 000000000000034b
> [ 6391.669556] x5 : 0000000000000000 x4 : 0000000000000000
> [ 6391.674858] x3 : 0000000000000000 x2 : ffff80003bd813f0
> [ 6391.680160] x1 : ffff8000013bc140 x0 : 0000000000000018
> [ 6391.685463] Call trace:
> [ 6391.687900] Exception stack(0xffff00000e613a70 to 0xffff00000e613bb0)
> [ 6391.694331] 3a60:                                   0000000000000018 ffff8000013bc140
> [ 6391.702150] 3a80: ffff80003bd813f0 0000000000000000 0000000000000000 0000000000000000
> [ 6391.709969] 3aa0: 000000000000034b 0000000000000007 0000000000000000 ffffffffffffffff
> [ 6391.717788] 3ac0: 0000000000000000 ffff00000e6138e0 ffff00000981bf00 000000006474e551
> [ 6391.725608] 3ae0: 0000000000800000 0000000000000004 ffff0000081f5618 0000ffffbf5785d8
> [ 6391.733427] 3b00: 0000000000000000 ffff8000319e7858 ffff80002fc6c148 0000000000000001
> [ 6391.741246] 3b20: 0000000000000000 0000000000000000 ffff80002fc6c1c8 0000000000000124
> [ 6391.749065] 3b40: 0000000000000042 ffff000008891000 ffff8000013bc140 ffff00000e613bb0
> [ 6391.756885] 3b60: ffff000008224338 ffff00000e613bb0 ffff000008224338 0000000000400145
> [ 6391.764703] 3b80: 0000000000000000 0000000000000000 0000ffffffffffff 0039c5b028000000
> [ 6391.772521] 3ba0: ffff00000e613bb0 ffff000008224338
> [ 6391.777389] [<ffff000008224338>] __mark_inode_dirty+0x128/0x220
> [ 6391.783299] [<ffff0000082129a0>] generic_update_time+0x90/0xa8
> [ 6391.789121] [<ffff000008212cd8>] file_update_time+0xe0/0x100
> [ 6391.794773] [<ffff0000081758b8>] __generic_file_write_iter+0x80/0x1b0
> [ 6391.801202] [<ffff000008175b0c>] generic_file_write_iter+0x124/0x1d8
> [ 6391.807546] [<ffff0000081f322c>] do_iter_readv_writev+0xec/0x130
> [ 6391.813542] [<ffff0000081f3eec>] do_iter_write+0x7c/0x1d0
> [ 6391.818930] [<ffff0000081f40e0>] vfs_writev+0x78/0xb8
> [ 6391.823971] [<ffff0000081f4180>] do_writev+0x60/0xc0
> [ 6391.828926] [<ffff0000081f5628>] SyS_writev+0x10/0x18
> [ 6391.833966] Exception stack(0xffff00000e613ec0 to 0xffff00000e614000)
> [ 6391.840396] 3ec0: 0000000000000004 0000fffffa394480 0000000000000002 0000ffffbf6225f8
> [ 6391.848215] 3ee0: 0000000000000001 0000ffffbf660618 0000000000000000 000000007fffffff
> [ 6391.856034] 3f00: 0000000000000042 000000000000000a 0000fffffa3942fc 00000000ffffffff
> [ 6391.863852] 3f20: 0000ffffbf6623b7 000000006474e551 0000000000800000 0000000000000004
> [ 6391.871672] 3f40: 00000000004d1dc0 0000ffffbf5785d8 0000000000000000 0000ffffbf5d0a00
> [ 6391.879490] 3f60: 0000fffffa394480 00000000000002af 0000000000000000 0000000000000002
> [ 6391.887309] 3f80: 0000000000000000 0000000000000000 00000000004d5000 0000ffffbf5d0a00
> [ 6391.895129] 3fa0: 0000000000410e0c 0000fffffa394440 0000ffffbf62247c 0000fffffa394440
> [ 6391.902947] 3fc0: 0000ffffbf622648 0000000020000000 0000000000000004 0000000000000042
> [ 6391.910766] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [ 6391.918586] [<ffff000008083200>] el0_svc_naked+0x34/0x38
> [ 6391.923886] ---[ end trace e567d7b7cb8ba10a ]---
> [ 6391.928661] blk_partition_remap: fail for partition 1
> [ 6391.933718] FAT-fs (sda1): FAT read failed (blocknr 32)
> [ 6391.938944] bdi-block not registered
> [ 6391.942534] ------------[ cut here ]------------
> [ 6391.947144] WARNING: CPU: 1 PID: 18359 at fs/fs-writeback.c:2206 __mark_inode_dirty+0x128/0x220
> [ 6391.955829] Modules linked in: qcserial option ipw ebtable_nat ebtable_filter ebtable_broute cdc_mbim w1_therm usb_wwan usb_serial_simple ti_usb_3410_5052 sierra_net sierra rndis_host T
> [ 6392.026595]  xt_NETMAP xt_LOG xt_FLOWOFFLOAD xt_CT x_tables wire visor usbserial usbnet ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cy2
> [ 6392.097270]  uhci_hcd ohci_platform ohci_hcd ehci_pci fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd usbcore usb_common mii [last unloaded: compat]
> [ 6392.110402] CPU: 1 PID: 18359 Comm: tcpdump Tainted: G        W       4.14.142 #0
> [ 6392.117872] Hardware name: Sophos RED60 (DT)
> [ 6392.122131] task: ffff8000013bc140 task.stack: ffff00000e610000
> [ 6392.128040] PC is at __mark_inode_dirty+0x128/0x220
> [ 6392.132907] LR is at __mark_inode_dirty+0x128/0x220
> [ 6392.137773] pc : [<ffff000008224338>] lr : [<ffff000008224338>] pstate: 00400145
> [ 6392.145156] sp : ffff00000e6137f0
> [ 6392.148459] x29: ffff00000e6137f0 x28: ffff80000125c800
> [ 6392.153761] x27: ffff00000e61399c x26: 0000000000000000
> [ 6392.159064] x25: 00000000fffffffb x24: ffff80002fc6ca38
> [ 6392.164366] x23: 0000000000000000 x22: 0000000000000000
> [ 6392.169668] x21: 0000000000000001 x20: ffff80002fc6c9b8
> [ 6392.174971] x19: ffff8000319e7858 x18: 0000000000000000
> [ 6392.180273] x17: 0000ffffbf5785d8 x16: ffff0000081f5618
> [ 6392.185575] x15: 0000000000000004 x14: 0000000000800000
> [ 6392.190877] x13: 000000006474e551 x12: ffff00000981bf00
> [ 6392.196179] x11: ffff00000e613520 x10: 0000000000000000
> [ 6392.201480] x9 : ffffffffffffffff x8 : 0000000000000000
> [ 6392.206781] x7 : 0000000000000007 x6 : 000000000000038d
> [ 6392.212084] x5 : 0000000000000000 x4 : 0000000000000000
> [ 6392.217386] x3 : 0000000000000000 x2 : ffff80003bd813f0
> [ 6392.222688] x1 : ffff8000013bc140 x0 : 0000000000000018
> [ 6392.227990] Call trace:
> [ 6392.230427] Exception stack(0xffff00000e6136b0 to 0xffff00000e6137f0)
> [ 6392.236857] 36a0:                                   0000000000000018 ffff8000013bc140
> [ 6392.244677] 36c0: ffff80003bd813f0 0000000000000000 0000000000000000 0000000000000000
> [ 6392.252496] 36e0: 000000000000038d 0000000000000007 0000000000000000 ffffffffffffffff
> [ 6392.260315] 3700: 0000000000000000 ffff00000e613520 ffff00000981bf00 000000006474e551
> [ 6392.268134] 3720: 0000000000800000 0000000000000004 ffff0000081f5618 0000ffffbf5785d8
> [ 6392.275953] 3740: 0000000000000000 ffff8000319e7858 ffff80002fc6c9b8 0000000000000001
> [ 6392.283772] 3760: 0000000000000000 0000000000000000 ffff80002fc6ca38 00000000fffffffb
> [ 6392.291591] 3780: 0000000000000000 ffff00000e61399c ffff80000125c800 ffff00000e6137f0
> [ 6392.299410] 37a0: ffff000008224338 ffff00000e6137f0 ffff000008224338 0000000000400145
> [ 6392.307229] 37c0: 0000000000000000 0000000000000000 0000ffffffffffff 0000000000000000
> [ 6392.315047] 37e0: ffff00000e6137f0 ffff000008224338
> [ 6392.319916] [<ffff000008224338>] __mark_inode_dirty+0x128/0x220
> [ 6392.325826] [<ffff0000082da054>] mark_fsinfo_dirty+0x2c/0x40
> [ 6392.331475] [<ffff0000082daad4>] fat_alloc_clusters+0x28c/0x398
> [ 6392.337384] [<ffff0000082de2b4>] fat_add_cluster+0x1c/0x58
> [ 6392.342859] [<ffff0000082de3f8>] fat_get_block+0x108/0x1e8
> [ 6392.348335] [<ffff00000822e7e8>] __block_write_begin_int+0x160/0x520
> [ 6392.354677] [<ffff00000822ec0c>] block_write_begin+0x4c/0xc8
> [ 6392.360325] [<ffff00000822ef44>] cont_write_begin+0x2bc/0x2f0
> [ 6392.366061] [<ffff0000082dd404>] fat_write_begin+0x3c/0x68
> [ 6392.371537] [<ffff0000081718e8>] generic_perform_write+0x98/0x178
> [ 6392.377619] [<ffff000008175970>] __generic_file_write_iter+0x138/0x1b0
> [ 6392.384137] [<ffff000008175b0c>] generic_file_write_iter+0x124/0x1d8
> [ 6392.390481] [<ffff0000081f322c>] do_iter_readv_writev+0xec/0x130
> [ 6392.396477] [<ffff0000081f3eec>] do_iter_write+0x7c/0x1d0
> [ 6392.401865] [<ffff0000081f40e0>] vfs_writev+0x78/0xb8
> [ 6392.406906] [<ffff0000081f4180>] do_writev+0x60/0xc0
> [ 6392.411861] [<ffff0000081f5628>] SyS_writev+0x10/0x18
> [ 6392.416901] Exception stack(0xffff00000e613ec0 to 0xffff00000e614000)
> [ 6392.423332] 3ec0: 0000000000000004 0000fffffa394480 0000000000000002 0000ffffbf6225f8
> [ 6392.431151] 3ee0: 0000000000000001 0000ffffbf660618 0000000000000000 000000007fffffff
> [ 6392.438970] 3f00: 0000000000000042 000000000000000a 0000fffffa3942fc 00000000ffffffff
> [ 6392.446789] 3f20: 0000ffffbf6623b7 000000006474e551 0000000000800000 0000000000000004
> [ 6392.454608] 3f40: 00000000004d1dc0 0000ffffbf5785d8 0000000000000000 0000ffffbf5d0a00
> [ 6392.462427] 3f60: 0000fffffa394480 00000000000002af 0000000000000000 0000000000000002
> [ 6392.470246] 3f80: 0000000000000000 0000000000000000 00000000004d5000 0000ffffbf5d0a00
> [ 6392.478065] 3fa0: 0000000000410e0c 0000fffffa394440 0000ffffbf62247c 0000fffffa394440
> [ 6392.485885] 3fc0: 0000ffffbf622648 0000000020000000 0000000000000004 0000000000000042
> [ 6392.493703] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [ 6392.501524] [<ffff000008083200>] el0_svc_naked+0x34/0x38
> [ 6392.506824] ---[ end trace e567d7b7cb8ba10b ]---
>
>
>
--
Markus Sattler
Software Engineer
O: +49 (0)72125516012
Markus.Sattler@sophos.com

Sophos Technology GmbH
Amalienbadstr. 41/Bau 52, 76227 Karlsruhe, Germany
Sophos Technology GmbH, Commercial Register: Mannheim HRB 712658
Headquarter Location: Amalienbadstr. 41/Bau 52 | 76227 Karlsruhe | Germany
Executive Board: Nicholas Bray, Wolfgang Hilpert, Pino von Kienlin, Jenny Onslow

________________________________

Sophos Technology GmbH, Amalienbadstr. 41/Bau 52, D-76227 Karlsruhe, Deutschland
Tel +49 (0)721 25516 0 Fax +49 (0)721 25516 200 E-Mail info@sophos.de www.sophos.de
Sitz der Gesellschaft: Karlsruhe, Amtsgericht Mannheim HRB 712658
Geschäftsführer: Stuart Fillingham, Pino von Kienlin, Jacqueline Denton.
Sophos Technology GmbH, Gustav-Stresemann-Ring 1, 65189 Wiesbaden, Deutschland
Tel +49 (0) 611 5858-0 Fax +49 (0) 611 5858-1042 E-Mail info@sophos.de www.sophos.de
Sitz der Gesellschaft: Karlsruhe, Amtsgericht Mannheim HRB 712658
Geschäftsführer: Stuart Fillingham, Pino von Kienlin, Jacqueline Denton

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2019-11-22 10:06 Kernel Oops wenn USB stick with FAT32 is unplugged wenn tcpdump is writing to it Markus Sattler
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