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Message-ID: <20171025092159.GA14222@red-moon>
Date: Wed, 25 Oct 2017 10:21:59 +0100
From: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To: Meelis Roos <mroos@...ee>
Cc: linux-alpha@...r.kernel.org,
Linux Kernel list <linux-kernel@...r.kernel.org>,
linux-pci@...r.kernel.org
Subject: Re: alpha boot hang - 4.14-rc* regression
On Wed, Oct 25, 2017 at 11:43:22AM +0300, Meelis Roos wrote:
> (Added linux-pci to CC)
>
> > > I run Gentoo Linux on my alphas, with latest git kernels for test.
> > > 4.13.0 worked well on 3 alphas but 4.13.0-09217-g5969d1bb3082 hangs on
> > > boot on all 3 of them. Tried bisecting on PC164, got into unrelated
> > > stuff, so probably it does not trigger always. Retried bisecting on
> > > DS10L. On the first try I got that the same keel where I first saw bad
> > > was the culprit, another bisect led me to
> > > 0e4c2eeb758a91e68b9eaf7a4bee9bd5ed97ff2b which looks more related.
> > >
> > > This is how the crash looks on console:
> > >
> > > * Starting udev ...
> > > starting version 225
> > > [ ok ]
> > > * Generating a rule to create a /dev/root symlink ...
> > > [ ok ]
> > > * Populating /dev with existing devices through uevents ...
> > > [ ok ]
> > >
> > > halted CPU 0
> > >
> > > halt code = 5
> > > HALT instruction executed
> > > PC = fffffc00009bf914
> > > boot failure
> > > >>>
> > >
> > > What else can I do to debug this?
> >
> > Booting with debug ignore_loglevel I get also this:
> [...]
> > So maybe it is related pcspkr loading, or the just loaded libata or
> > floppy...
>
> removing libata modules and rebooting fixes it - so it seems to be
> loading of libata.
Can you please cherry-pick:
commit b1f9e5e355e9 ("ide: fix IRQ assignment for PCI bus order probing")
from mainline and let us know if that solves the issue ?
Thanks,
Lorenzo
> lspci -vvv from broken kernel with no libata loaded:
>
> 00:07.0 ISA bridge: ULi Electronics Inc. M1533/M1535/M1543 PCI to ISA Bridge [Aladdin IV/V/V+] (rev c3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort+ <MAbort+ >SERR- <PERR- INTx-
> Latency: 0
>
> 00:09.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
> Subsystem: Digital Equipment Corporation DE500B Fast Ethernet
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 29
> Region 0: I/O ports at 8400 [size=128]
> Region 1: Memory at 09091000 (32-bit, non-prefetchable) [size=1K]
> Expansion ROM at 09000000 [disabled] [size=256K]
> Kernel driver in use: tulip
>
> 00:0b.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
> Subsystem: Digital Equipment Corporation DE500B Fast Ethernet
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 30
> Region 0: I/O ports at 8480 [size=128]
> Region 1: Memory at 09092000 (32-bit, non-prefetchable) [size=1K]
> Expansion ROM at 09040000 [disabled] [size=256K]
> Kernel driver in use: tulip
>
> 00:0d.0 IDE interface: ULi Electronics Inc. M5229 IDE (rev c1) (prog-if f0)
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (500ns min, 1000ns max)
> Interrupt: pin A routed to IRQ 238
> Region 0: I/O ports at 01f0 [size=8]
> Region 1: I/O ports at 03f4
> Region 2: I/O ports at 0170 [size=8]
> Region 3: I/O ports at 0374
> Region 4: I/O ports at 8800 [size=16]
>
> 00:11.0 SCSI storage controller: QLogic Corp. ISP1020 Fast-wide SCSI (rev 05)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 248, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 47
> Region 0: I/O ports at 8000 [size=256]
> Region 1: Memory at 09090000 (32-bit, non-prefetchable) [size=4K]
> Expansion ROM at 09080000 [disabled] [size=64K]
> Kernel driver in use: qla1280
>
>
> /proc/interrupts from the same kernel:
> CPU0
> 1: 3 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 4: 319 XT-PIC ttyS0
> 6: 3 XT-PIC floppy
> 8: 688138 dummy -RTC timer
> 12: 5 XT-PIC i8042
> 29: 975 DP264 enp0s9
> 47: 18229 DP264 qla1280
> PMI: 0 Performance Monitoring
> ERR: 0
>
> lspci -vvvv from working 4.13.0:
>
> 00:07.0 ISA bridge: ULi Electronics Inc. M1533/M1535/M1543 PCI to ISA Bridge [Aladdin IV/V/V+] (rev c3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort+ <MAbort+ >SERR- <PERR- INTx-
> Latency: 0
>
> 00:09.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
> Subsystem: Digital Equipment Corporation DE500B Fast Ethernet
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 29
> Region 0: I/O ports at 8400 [size=128]
> Region 1: Memory at 09091000 (32-bit, non-prefetchable) [size=1K]
> Expansion ROM at 09000000 [disabled] [size=256K]
> Kernel driver in use: tulip
>
> 00:0b.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
> Subsystem: Digital Equipment Corporation DE500B Fast Ethernet
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 30
> Region 0: I/O ports at 8480 [size=128]
> Region 1: Memory at 09092000 (32-bit, non-prefetchable) [size=1K]
> Expansion ROM at 09040000 [disabled] [size=256K]
> Kernel driver in use: tulip
>
> 00:0d.0 IDE interface: ULi Electronics Inc. M5229 IDE (rev c1) (prog-if f0)
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 255 (500ns min, 1000ns max)
> Interrupt: pin A routed to IRQ 14
> Region 0: I/O ports at 01f0 [size=8]
> Region 1: I/O ports at 03f4
> Region 2: I/O ports at 0170 [size=8]
> Region 3: I/O ports at 0374
> Region 4: I/O ports at 8800 [size=16]
> Kernel driver in use: pata_ali
> Kernel modules: pata_ali, ata_generic
>
> 00:11.0 SCSI storage controller: QLogic Corp. ISP1020 Fast-wide SCSI (rev 05)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 248, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 47
> Region 0: I/O ports at 8000 [size=256]
> Region 1: Memory at 09090000 (32-bit, non-prefetchable) [size=4K]
> Expansion ROM at 09080000 [disabled] [size=64K]
> Kernel driver in use: qla1280
>
> CPU0
> 1: 3 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 4: 320 XT-PIC ttyS0
> 6: 3 XT-PIC floppy
> 8: 165722 dummy -RTC timer
> 12: 5 XT-PIC i8042
> 14: 0 XT-PIC pata_ali
> 15: 0 XT-PIC pata_ali
> 29: 535 DP264 enp0s9
> 47: 21742 DP264 qla1280
> PMI: 0 Performance Monitoring
> ERR: 0
>
>
> dmesg from broken kernel with no libata loaded:
> [ 0.000000] Linux version 4.13.0-rc3-00004-g0e4c2eeb758a (mroos@...0l) (gcc version 5.4.0 (Gentoo 5.4.0-r3 p1.3, pie-0.6.5)) #101 Wed Oct 25 09:49:26 EEST 2017
> [ 0.000000] Booting GENERIC on Tsunami variation Webbrick using machine vector Webbrick from SRM
> [ 0.000000] Major Options: LEGACY_START VERBOSE_MCHECK MAGIC_SYSRQ
> [ 0.000000] Command line: root=/dev/sda2 console=ttyS0
> [ 0.000000] memcluster 0, usage 1, start 0, end 256
> [ 0.000000] memcluster 1, usage 0, start 256, end 65429
> [ 0.000000] memcluster 2, usage 1, start 65429, end 65536
> [ 0.000000] freeing pages 256:384
> [ 0.000000] freeing pages 1358:65429
> [ 0.000000] reserving pages 1358:1359
> [ 0.000000] 2048K Bcache detected; load hit latency 18 cycles, load miss latency 112 cycles
> [ 0.000000] On node 0 totalpages: 65429
> [ 0.000000] free_area_init_node: node 0, pgdat fffffc0000a4b550, node_mem_map fffffc0000a9e000
> [ 0.000000] DMA zone: 448 pages used for memmap
> [ 0.000000] DMA zone: 0 pages reserved
> [ 0.000000] DMA zone: 65429 pages, LIFO batch:15
> [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
> [ 0.000000] pcpu-alloc: [0] 0
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64981
> [ 0.000000] Kernel command line: root=/dev/sda2 console=ttyS0
> [ 0.000000] PID hash table entries: 2048 (order: 1, 16384 bytes)
> [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 524288 bytes)
> [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 262144 bytes)
> [ 0.000000] Sorting __ex_table...
> [ 0.000000] Memory: 508632K/523432K available (5297K kernel code, 422K rwdata, 1504K rodata, 256K init, 212K bss, 14800K reserved, 0K cma-reserved)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> [ 0.000000] NR_IRQS: 128
> [ 0.000000] HWRPB cycle frequency bogus. Estimated 616560540 Hz
> [ 0.000000] clocksource: rpcc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 3099874744 ns
> [ 0.000976] Console: colour dummy device 80x25
> [ 0.024414] console [ttyS0] enabled
> [ 0.026367] Calibrating delay loop... 1221.92 BogoMIPS (lpj=595968)
> [ 0.036132] pid_max: default: 32768 minimum: 301
> [ 0.037109] Mount-cache hash table entries: 1024 (order: 0, 8192 bytes)
> [ 0.038085] Mountpoint-cache hash table entries: 1024 (order: 0, 8192 bytes)
> [ 0.041015] devtmpfs: initialized
> [ 0.042968] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1866466235866741 ns
> [ 0.043945] futex hash table entries: 256 (order: -1, 6144 bytes)
> [ 0.044921] random: get_random_u32 called from bucket_table_alloc+0x12c/0x300 with crng_init=0
> [ 0.045898] NET: Registered protocol family 16
> [ 0.046874] EISA bus registered
> [ 0.047851] PCI host bridge to bus 0000:00
> [ 0.048828] pci_bus 0000:00: root bus resource [io 0x0000-0x1ffffff]
> [ 0.049804] pci_bus 0000:00: root bus resource [mem 0x00000000-0x3fffffff]
> [ 0.050781] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
> [ 0.051757] pci 0000:00:07.0: [10b9:1533] type 00 class 0x060100
> [ 0.052734] pci 0000:00:09.0: [1011:0019] type 00 class 0x020000
> [ 0.052734] pci 0000:00:09.0: reg 0x10: [io 0x10000-0x1007f]
> [ 0.052734] pci 0000:00:09.0: reg 0x14: [mem 0x01091000-0x010913ff]
> [ 0.052734] pci 0000:00:09.0: reg 0x30: [mem 0x01000000-0x0103ffff pref]
> [ 0.052734] pci 0000:00:0b.0: [1011:0019] type 00 class 0x020000
> [ 0.052734] pci 0000:00:0b.0: reg 0x10: [io 0x10080-0x100ff]
> [ 0.052734] pci 0000:00:0b.0: reg 0x14: [mem 0x01091400-0x010917ff]
> [ 0.052734] pci 0000:00:0b.0: reg 0x30: [mem 0x01040000-0x0107ffff pref]
> [ 0.052734] pci 0000:00:0d.0: [10b9:5229] type 00 class 0x0101f0
> [ 0.052734] pci 0000:00:0d.0: [Firmware Bug]: reg 0x10: invalid BAR (can't size)
> [ 0.053710] pci 0000:00:0d.0: [Firmware Bug]: reg 0x14: invalid BAR (can't size)
> [ 0.054687] pci 0000:00:0d.0: [Firmware Bug]: reg 0x18: invalid BAR (can't size)
> [ 0.055664] pci 0000:00:0d.0: [Firmware Bug]: reg 0x1c: invalid BAR (can't size)
> [ 0.056640] pci 0000:00:0d.0: reg 0x20: [io 0x10110-0x1011f]
> [ 0.056640] pci 0000:00:0d.0: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
> [ 0.057617] pci 0000:00:0d.0: legacy IDE quirk: reg 0x14: [io 0x03f6]
> [ 0.058593] pci 0000:00:0d.0: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
> [ 0.059570] pci 0000:00:0d.0: legacy IDE quirk: reg 0x1c: [io 0x0376]
> [ 0.060546] pci 0000:00:11.0: [1077:1020] type 00 class 0x010000
> [ 0.060546] pci 0000:00:11.0: reg 0x10: [io 0x1000-0x10ff]
> [ 0.060546] pci 0000:00:11.0: reg 0x14: [mem 0x01090000-0x01090fff]
> [ 0.060546] pci 0000:00:11.0: reg 0x30: [mem 0x01080000-0x0108ffff pref]
> [ 0.060546] pci: enabling save/restore of SRM state
> [ 0.061523] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
> [ 0.061523] pci 0000:00:09.0: BAR 6: assigned [mem 0x09000000-0x0903ffff pref]
> [ 0.062499] pci 0000:00:0b.0: BAR 6: assigned [mem 0x09040000-0x0907ffff pref]
> [ 0.063476] pci 0000:00:11.0: BAR 6: assigned [mem 0x09080000-0x0908ffff pref]
> [ 0.064453] pci 0000:00:11.0: BAR 1: assigned [mem 0x09090000-0x09090fff]
> [ 0.065429] pci 0000:00:09.0: BAR 1: assigned [mem 0x09091000-0x090913ff]
> [ 0.066406] pci 0000:00:0b.0: BAR 1: assigned [mem 0x09092000-0x090923ff]
> [ 0.067382] pci 0000:00:11.0: BAR 0: assigned [io 0x8000-0x80ff]
> [ 0.068359] pci 0000:00:09.0: BAR 0: assigned [io 0x8400-0x847f]
> [ 0.069335] pci 0000:00:0b.0: BAR 0: assigned [io 0x8480-0x84ff]
> [ 0.070312] pci 0000:00:0d.0: BAR 4: assigned [io 0x8800-0x880f]
> [ 0.071289] pci_bus 0000:00: resource 4 [io 0x0000-0x1ffffff]
> [ 0.071289] pci_bus 0000:00: resource 5 [mem 0x00000000-0x3fffffff]
> [ 0.075195] vgaarb: loaded
> [ 0.076171] SCSI subsystem initialized
> [ 0.078124] clocksource: Switched to clocksource rpcc
> [ 0.086914] NET: Registered protocol family 2
> [ 0.087890] random: get_random_u32 called from neigh_hash_alloc+0xdc/0x160 with crng_init=0
> [ 0.088867] random: get_random_u32 called from rt_genid_init+0x2c/0x50 with crng_init=0
> [ 0.089843] TCP established hash table entries: 4096 (order: 2, 32768 bytes)
> [ 0.090820] TCP bind hash table entries: 4096 (order: 2, 32768 bytes)
> [ 0.091796] TCP: Hash tables configured (established 4096 bind 4096)
> [ 0.092773] UDP hash table entries: 256 (order: 0, 8192 bytes)
> [ 0.094726] UDP-Lite hash table entries: 256 (order: 0, 8192 bytes)
> [ 0.096679] NET: Registered protocol family 1
> [ 0.097656] pci 0000:00:07.0: Activating ISA DMA hang workarounds
> [ 0.098632] PCI: CLS 64 bytes, default 64
> [ 0.099609] srm_env: version 0.0.6 loaded successfully
> [ 0.100585] Using epoch 2000 for rtc year 17
> [ 0.102539] platform rtc-alpha: rtc core: registered rtc-alpha as rtc0
> [ 0.103515] workingset: timestamp_bits=62 max_order=16 bucket_order=0
> [ 0.113281] random: fast init done
> [ 0.115234] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
> [ 0.116210] io scheduler noop registered
> [ 0.118164] io scheduler cfq registered (default)
> [ 0.119140] isapnp: Scanning for PnP cards...
> [ 0.473632] isapnp: No Plug & Play device found
> [ 0.475585] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> [ 0.477538] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
> [ 0.480468] serial8250: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
> [ 0.482421] qla1280: QLA1040 found on PCI bus 0, dev 17
> [ 0.484374] Floppy drive(s): fd0 is 2.88M
> [ 0.824218] random: crng init done
> [ 0.946288] FDC 0 is a post-1991 82077
> [ 0.960937] scsi(0:0): Resetting SCSI BUS
> [ 3.999997] scsi host0: QLogic QLA1040 PCI to SCSI Host Adapter
> Firmware version: 7.65.06, Driver version 3.27.1
> [ 4.006833] Linux Tulip driver version 1.1.15 (Feb 27, 2007)
> [ 4.013669] tulip0: EEPROM default media type Autosense
> [ 4.014646] tulip0: Index #0 - Media 10baseT (#0) described by a 21142 Serial PHY (2) block
> [ 4.015622] tulip0: Index #1 - Media 10baseT-FDX (#4) described by a 21142 Serial PHY (2) block
> [ 4.016599] tulip0: Index #2 - Media 100baseTx (#3) described by a 21143 SYM PHY (4) block
> [ 4.017576] tulip0: Index #3 - Media 100baseTx-FDX (#5) described by a 21143 SYM PHY (4) block
> [ 4.025388] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0x9091000, 00:10:64:30:19:8e, IRQ 29
> [ 4.032224] tulip1: EEPROM default media type Autosense
> [ 4.033201] tulip1: Index #0 - Media 10baseT (#0) described by a 21142 Serial PHY (2) block
> [ 4.034177] tulip1: Index #1 - Media 10baseT-FDX (#4) described by a 21142 Serial PHY (2) block
> [ 4.035154] tulip1: Index #2 - Media 100baseTx (#3) described by a 21143 SYM PHY (4) block
> [ 4.036130] tulip1: Index #3 - Media 100baseTx-FDX (#5) described by a 21143 SYM PHY (4) block
> [ 4.043943] net eth1: Digital DS21142/43 Tulip rev 65 at MMIO 0x9092000, 00:10:64:30:19:8d, IRQ 30
> [ 4.049802] serio: i8042 KBD port at 0x60,0x64 irq 1
> [ 4.050779] serio: i8042 AUX port at 0x60,0x64 irq 12
> [ 4.051755] scsi 0:0:0:0: Direct-Access COMPAQ BF0369A4BC HPB7 PQ: 0 ANSI: 3
> [ 4.053708] mousedev: PS/2 mouse device common for all mice
> [ 4.055661] NET: Registered protocol family 10
> [ 4.058591] scsi(0:0:0:0):
> [ 4.058591] Sync: period 10, offset 12
> [ 4.058591] , Wide
> [ 4.058591] , Tagged queuing: depth 31
>
> [ 4.060544] atkbd serio0: keyboard reset failed on isa0060/serio0
> [ 4.062497] Segment Routing with IPv6
> [ 4.063474] NET: Registered protocol family 17
> [ 4.065427] platform rtc-alpha: setting system clock to 2017-10-25 08:33:31 UTC (1508920411)
> [ 4.083005] atkbd serio1: keyboard reset failed on isa0060/serio1
> [ 6.167965] sd 0:0:0:0: Attached scsi generic sg0 type 0
> [ 6.168942] sd 0:0:0:0: [sda] 71132000 512-byte logical blocks: (36.4 GB/33.9 GiB)
> [ 6.170895] sd 0:0:0:0: [sda] Write Protect is off
> [ 6.171871] sd 0:0:0:0: [sda] Mode Sense: cf 00 10 08
> [ 6.172848] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
> [ 6.186520] sda: sda1 sda2 sda4
> [ 6.191403] sd 0:0:0:0: [sda] Attached SCSI disk
> [ 6.195309] EXT4-fs (sda2): couldn't mount as ext3 due to feature incompatibilities
> [ 6.197262] EXT4-fs (sda2): couldn't mount as ext2 due to feature incompatibilities
> [ 6.211910] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
> [ 6.212887] VFS: Mounted root (ext4 filesystem) readonly on device 8:2.
> [ 6.234371] devtmpfs: mounted
> [ 6.235348] Freeing unused kernel memory: 256K
> [ 6.236324] This architecture does not have kernel memory protection.
> [ 13.266594] tulip 0000:00:0b.0 enp0s11: renamed from eth1
> [ 13.267571] tulip 0000:00:09.0 enp0s9: renamed from eth0
> [ 15.346671] EXT4-fs (sda2): re-mounted. Opts: (null)
> [ 16.040030] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
> [ 16.050773] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
>
> --
> Meelis Roos (mroos@...ee) http://www.cs.ut.ee/~mroos/
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