while running the command:
# dd_rescue -k -vvvvv /dev/sdb /dev/null
on a (some time now) problematic disk:
smartd[750]: Device: /dev/sdb [SAT], 35 Currently unreadable (pending) sectors
smartd[750]: Device: /dev/sdb [SAT], 21 Offline uncorrectable sectors
i got a kernel bug reported (and system restarted):
Sep 30 11:54:25 cafe kernel: ------------[ cut here ]------------
Sep 30 11:54:25 cafe kernel: kernel BUG at drivers/ata/sata_mv.c:2118!
Sep 30 11:54:25 cafe kernel: invalid opcode: 0000 [#1] PREEMPT SMP
Sep 30 11:54:25 cafe kernel: CPU: 0 PID: 260 Comm: scsi_eh_1 Tainted: G
E 4.18.8-1-pae #1 openSUSE Tumbleweed (unreleased)
Sep 30 11:54:25 cafe kernel: Hardware name: /i854GML-LPC47M182, BIOS 6.00 PG
06/21/2007
Sep 30 11:54:25 cafe kernel: EIP: mv_qc_prep+0x200/0x230 [sata_mv]
Sep 30 11:54:25 cafe kernel: Code: 34 e9 46 fe ff ff 8d 74 26 00 0f b6 48 16 80
cd 11 66 89 4a 0a 0f b6 58 1b 8d 4a 0e 80 cf 11 66 89 5a 0c e9 d4 fe ff ff 66
90 <0f> 0b 8d b6 00 00 00 00 0f 0b e9 3f fe ff ff 90 83 e7 df 89 78 10
Sep 30 11:54:25 cafe kernel: EAX: f663562c EBX: 00000047 ECX: f661d4ea EDX:
f661d4e0
Sep 30 11:54:25 cafe kernel: ESI: 00000001 EDI: 00000000 EBP: f67b9d18 ESP:
f67b9d0c
Sep 30 11:54:25 cafe kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
EFLAGS: 00210006
Sep 30 11:54:25 cafe kernel: CR0: 80050033 CR2: b337ab68 CR3: 3517c900 CR4:
000006f0
Sep 30 11:54:25 cafe kernel: Call Trace:
Sep 30 11:54:25 cafe kernel: ata_qc_issue+0x102/0x290
Sep 30 11:54:25 cafe kernel: ata_exec_internal_sg+0x2b6/0x560
Sep 30 11:54:25 cafe kernel: ata_exec_internal+0x47/0x70
Sep 30 11:54:25 cafe kernel: ata_read_log_page.part.32+0x125/0x140
Sep 30 11:54:25 cafe kernel: ata_read_log_page+0x24/0x40
Sep 30 11:54:25 cafe kernel: ata_eh_analyze_ncq_error+0xa1/0x290
Sep 30 11:54:25 cafe kernel: ata_eh_link_autopsy+0x6f/0xb80
Sep 30 11:54:25 cafe kernel: ? _raw_spin_unlock_irq+0x13/0x30
Sep 30 11:54:25 cafe kernel: ? __flush_work+0x157/0x180
Sep 30 11:54:25 cafe kernel: ? __cancel_work_timer+0x1f/0x160
Sep 30 11:54:25 cafe kernel: ? lock_timer_base+0x59/0x70
Sep 30 11:54:25 cafe kernel: ? _raw_spin_lock_irqsave+0x1f/0x50
Sep 30 11:54:25 cafe kernel: ata_eh_autopsy+0x27/0xe0
Sep 30 11:54:25 cafe kernel: sata_pmp_error_handler+0x10/0x30
Sep 30 11:54:25 cafe kernel: mv_pmp_error_handler+0x7d/0x90 [sata_mv]
Sep 30 11:54:25 cafe kernel: ata_scsi_port_error_handler+0x277/0x6a0
Sep 30 11:54:25 cafe kernel: ata_scsi_error+0x76/0x90
Sep 30 11:54:25 cafe kernel: scsi_error_handler+0xb0/0x580
Sep 30 11:54:25 cafe kernel: ? __kthread_parkme+0x51/0x70
Sep 30 11:54:25 cafe kernel: ? __kthread_parkme+0x51/0x70
Sep 30 11:54:25 cafe kernel: kthread+0xf0/0x110
Sep 30 11:54:25 cafe kernel: ? scsi_eh_get_sense+0x1e0/0x1e0
Sep 30 11:54:25 cafe kernel: ? kthread_create_worker_on_cpu+0x20/0x20
Sep 30 11:54:25 cafe kernel: ret_from_fork+0x2e/0x38
Sep 30 11:54:25 cafe kernel: Modules linked in: binfmt_misc(E) nf_log_ipv6(E)
xt_comment(E) nf_log_ipv4(E) nf_log_common(E) xt_LOG(E) xt_limit(E)
nfnetlink_cthelper(E) nfnetlink(E) fuse(E) af_packet(E) iscsi_ibft(E)
iscsi_boot_sysfs(E) ip6t_REJECT(E) nf_reject_ipv6(E) nf_conntrack_ipv6(E)
nf_defrag_ipv6(E) ipt_REJECT(E) nf_reject_ipv4(E) xt_pkttype(E) xt_tcpudp(E)
iptable_filter(E) bpfilter(E) ip6table_mangle(E) nf_conntrack_netbios_ns(E)
nf_conntrack_broadcast(E) nf_conntrack_ipv4(E) nf_defrag_ipv4(E) ip_tables(E)
xt_conntrack(E) nf_conntrack(E) ip6table_filter(E) ip6_tables(E) x_tables(E)
btrfs(E) zstd_compress(E) libcrc32c(E) zstd_decompress(E) xxhash(E) xor(E)
iTCO_wdt(E) iTCO_vendor_support(E) ppdev(E) pcspkr(E) i2c_i801(E) lpc_ich(E)
i915(E) raid6_pq(E) video(E) drm_kms_helper(E) drm(E) fb_sys_fops(E)
syscopyarea(E)
Sep 30 11:54:25 cafe kernel: sysfillrect(E) sysimgblt(E) parport_pc(E)
parport(E) e1000(E) i2c_algo_bit(E) joydev(E) button(E) nfsd(E) auth_rpcgss(E)
nfs_acl(E) lockd(E) grace(E) sunrpc(E) ata_generic(E) hid_generic(E) usbhid(E)
ata_piix(E)serio_raw(E) ehci_pci(E) uhci_hcd(E) ehci_hcd(E) sata_mv(E)
usbcore(E) floppy(E) sg(E) dm_multipath(E) dm_mod(E) scsi_dh_rdac(E)
scsi_dh_emc(E) scsi_dh_alua(E)
Sep 30 11:54:25 cafe kernel: ---[ end trace 6ca312d1e86fbb70 ]---
Sep 30 11:54:25 cafe kernel: EIP: mv_qc_prep+0x200/0x230 [sata_mv]
Sep 30 11:54:25 cafe kernel: Code: 34 e9 46 fe ff ff 8d 74 26 00 0f b6 48 16 80
cd 11 66 89 4a 0a 0f b6 58 1b 8d 4a 0e 80 cf 11 66 89 5a 0c e9 d4 fe ff ff 66
90 <0f> 0b 8d b6 00 00 00 00 0f 0b e9 3f fe ff ff 90 83 e7 df 89 78 10
Sep 30 11:54:25 cafe kernel: EAX: f663562c EBX: 00000047 ECX: f661d4ea EDX:
f661d4e0
Sep 30 11:54:25 cafe kernel: ESI: 00000001 EDI: 00000000 EBP: f67b9d18 ESP:
d24a8efc
Sep 30 11:54:25 cafe kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
EFLAGS: 00210006
Sep 30 11:54:25 cafe kernel: CR0: 80050033 CR2: b337ab68 CR3: 3517c900 CR4:
000006f0
Sep 30 11:54:25 cafe kernel: note: scsi_eh_1[260] exited with preempt_count 1