Re: sun4v+DMA related boot crash on 4.13-git

From: Meelis Roos
Date: Tue Jul 11 2017 - 17:48:23 EST

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> > > > > I tested yesterdayd 4.12+git on sparc64 to see if the sparc merge
> > > > > works
> > > > > fine, and on all of my sun4v machines (T1000, T2000, T5120) it crashed
> > > > > on boot with DMA-related stacktrace (below). Allt he machines are
> > > > > sun4v
> > > > > physical machines, not VM-s. Older sun4 machines do not exhibit this
> > > > > problem.
> > > > >
> > > > > Maybae DMA APi realted, maybe sparc64. Will try to bisect when I get
> > > > > time.
> > > > I see whats going on with panic. I will reproduce locally. Will get back
> > > > soon.
> > > This patch should fix panic. Please give it a try.
> >
> > Yes, this patch fixes it. Thank you for fixing it quickly!
> Thanks for testing. Patch sent for sparc-next.

Why sparc-next - it should go into 4.13 since 4.13 would break all
niagara1 and niagara2 systems otherwise?

>
> -Tushar
> > >
> > > commit b02c2b0bfd ("sparc: remove arch specific dma_supported
> > > implementations") introduced a code that incorrectly allow dma_supported()
> > > to
> > > succeed for 64bit dma mask even if system doesn't have ATU IOMMU. 64bit
> > > DMA
> > > only supported on sun4v equipped with ATU IOMMU HW.
> > >
> > > diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
> > > index 24f21c7..0a32c57 100644
> > > --- a/arch/sparc/kernel/pci_sun4v.c
> > > +++ b/arch/sparc/kernel/pci_sun4v.c
> > > @@ -673,12 +673,14 @@ static void dma_4v_unmap_sg(struct device *dev,
> > > struct
> > > scatterlist *sglist,
> > > static int dma_4v_supported(struct device *dev, u64 device_mask)
> > > {
> > > struct iommu *iommu = dev->archdata.iommu;
> > > - u64 dma_addr_mask;
> > > + u64 dma_addr_mask = iommu->dma_addr_mask;
> > >
> > > - if (device_mask > DMA_BIT_MASK(32) && iommu->atu)
> > > - dma_addr_mask = iommu->atu->dma_addr_mask;
> > > - else
> > > - dma_addr_mask = iommu->dma_addr_mask;
> > > + if (device_mask > DMA_BIT_MASK(32)) {
> > > + if (iommu->atu)
> > > + dma_addr_mask = iommu->atu->dma_addr_mask;
> > > + else
> > > + return 0;
> > > + }
> > >
> > > if ((device_mask & dma_addr_mask) == dma_addr_mask)
> > > return 1;
> > >
> > >
> > > -Tushar
> > >
> > >
> > > >
> > > > -Tushar
> > > > >
> > > > >
> > > > > [ 0.000024] PROMLIB: Sun IEEE Boot Prom 'OBP 4.30.4.d 2011/07/06
> > > > > 14:29'
> > > > > [ 0.000033] PROMLIB: Root node compatible: sun4v
> > > > > [ 0.000079] Linux version 4.12.0-08915-gf263fbb (mroos@t2000) (gcc
> > > > > version 4.9.2 (Debian 4.9.2-20)) #141 SMP Sun Jul 9 17:51:12 EEST 2017
> > > > > [ 0.002047] bootconsole [earlyprom0] enabled
> > > > > [ 0.002383] ARCH: SUN4V
> > > > > [ 0.002668] Ethernet address: 00:14:4f:86:99:26
> > > > > [ 0.003406] MM: PAGE_OFFSET is 0xffff800000000000 (max_phys_bits ==
> > > > > 39)
> > > > > [ 0.004089] MM: VMALLOC [0x0000000100000000 --> 0x0000600000000000]
> > > > > [ 0.004562] MM: VMEMMAP [0x0000600000000000 --> 0x0000c00000000000]
> > > > > [ 0.095699] Kernel: Using 3 locked TLB entries for main kernel
> > > > > image.
> > > > > [ 0.096387] Remapping the kernel...
> > > > > [ 0.096400] done.
> > > > > [ 1.906342] OF stdout device is: /virtual-devices@100/console@1
> > > > > [ 1.907160] PROM: Built device tree with 148821 bytes of memory.
> > > > > [ 1.907804] MDESC: Size is 42336 bytes.
> > > > > [ 1.910139] PLATFORM: banner-name [Sun Fire T200]
> > > > > [ 1.910564] PLATFORM: name [SUNW,Sun-Fire-T200]
> > > > > [ 1.910919] PLATFORM: hostid [84869926]
> > > > > [ 1.911224] PLATFORM: serial# [00ab4130]
> > > > > [ 1.911536] PLATFORM: stick-frequency [3b9aca00]
> > > > > [ 1.911894] PLATFORM: mac-address [144f869926]
> > > > > [ 1.912241] PLATFORM: watchdog-resolution [1000 ms]
> > > > > [ 1.912619] PLATFORM: watchdog-max-timeout [31536000000 ms]
> > > > > [ 1.913042] PLATFORM: max-cpus [32]
> > > > > [ 1.913501] Top of RAM: 0x3ffd34000, Total RAM: 0x3f7918000
> > > > > [ 1.913936] Memory hole size: 132MB
> > > > > [ 2.279507] Allocated 16384 bytes for kernel page tables.
> > > > > [ 2.280578] Zone ranges:
> > > > > [ 2.280819] Normal [mem 0x0000000008400000-0x00000003ffd33fff]
> > > > > [ 2.281292] Movable zone start for each node
> > > > > [ 2.281626] Early memory node ranges
> > > > > [ 2.281916] node 0: [mem 0x0000000008400000-0x00000003ffc1ffff]
> > > > > [ 2.282557] node 0: [mem 0x00000003ffc28000-0x00000003ffcfdfff]
> > > > > [ 2.283030] node 0: [mem 0x00000003ffd0e000-0x00000003ffd27fff]
> > > > > [ 2.283514] node 0: [mem 0x00000003ffd2c000-0x00000003ffd33fff]
> > > > > [ 2.283994] Initmem setup node 0 [mem
> > > > > 0x0000000008400000-0x00000003ffd33fff]
> > > > > [ 2.782262] Booting Linux...
> > > > > [ 2.782734] CPU CAPS:
> > > > > [flush,stbar,swap,muldiv,v9,blkinit,mul32,div32]
> > > > > [ 2.783255] CPU CAPS: [v8plus,ASIBlkInit]
> > > > > [ 2.897543] percpu: Embedded 12 pages/cpu @ffff8003ff800000 s55872
> > > > > r8192 d34240 u262144
> > > > > [ 2.913264] SUN4V: Mondo queue sizes [cpu(4096) dev(16384) r(8192)
> > > > > nr(256)]
> > > > > [ 2.915492] Built 1 zonelists in Node order, mobility grouping on.
> > > > > Total pages: 2063634
> > > > > [ 2.916160] Policy zone: Normal
> > > > > [ 2.916420] Kernel command line: root=/dev/sda1 ro
> > > > > [ 2.918743] PID hash table entries: 4096 (order: 2, 32768 bytes)
> > > > > [ 2.919230] Sorting __ex_table...
> > > > > [ 3.220450] Memory: 16497120K/16639072K available (5521K kernel
> > > > > code,
> > > > > 530K rwdata, 1224K rodata, 336K init, 699K bss, 141952K reserved, 0K
> > > > > cma-reserved)
> > > > > [ 3.223109] Hierarchical RCU implementation.
> > > > > [ 3.223452] RCU restricting CPUs from NR_CPUS=256 to
> > > > > nr_cpu_ids=16.
> > > > > [ 3.223933] RCU: Adjusting geometry for rcu_fanout_leaf=16,
> > > > > nr_cpu_ids=16
> > > > > [ 3.225508] NR_IRQS: 2048, nr_irqs: 2048, preallocated irqs: 1
> > > > > [ 3.225975] SUN4V: Using IRQ API major 1, cookie only virqs
> > > > > disabled
> > > > > [ 3.227643] clocksource: stick: mask: 0xffffffffffffffff
> > > > > max_cycles:
> > > > > 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
> > > > > [ 3.228400] clocksource: mult[800000] shift[23]
> > > > > [ 3.228755] clockevent: mult[80000000] shift[31]
> > > > > [ 3.230304] Console: colour dummy device 80x25
> > > > > [ 3.230662] console [tty0] enabled
> > > > > [ 3.230948] bootconsole [earlyprom0] disabled
> > > > > [ 0.000024] PROMLIB: Sun IEEE Boot Prom 'OBP 4.30.4.d 2011/07/06
> > > > > 14:29'
> > > > > [ 0.000033] PROMLIB: Root node compatible: sun4v
> > > > > [ 0.000079] Linux version 4.12.0-08915-gf263fbb (mroos@t2000) (gcc
> > > > > version 4.9.2 (Debian 4.9.2-20)) #141 SMP Sun Jul 9 17:51:12 EEST 2017
> > > > > [ 0.002047] bootconsole [earlyprom0] enabled
> > > > > [ 0.002383] ARCH: SUN4V
> > > > > [ 0.002668] Ethernet address: 00:14:4f:86:99:26
> > > > > [ 0.003406] MM: PAGE_OFFSET is 0xffff800000000000 (max_phys_bits ==
> > > > > 39)
> > > > > [ 0.004089] MM: VMALLOC [0x0000000100000000 --> 0x0000600000000000]
> > > > > [ 0.004562] MM: VMEMMAP [0x0000600000000000 --> 0x0000c00000000000]
> > > > > [ 0.095699] Kernel: Using 3 locked TLB entries for main kernel
> > > > > image.
> > > > > [ 0.096387] Remapping the kernel...
> > > > > [ 0.096400] done.
> > > > > [ 1.906342] OF stdout device is: /virtual-devices@100/console@1
> > > > > [ 1.907160] PROM: Built device tree with 148821 bytes of memory.
> > > > > [ 1.907804] MDESC: Size is 42336 bytes.
> > > > > [ 1.910139] PLATFORM: banner-name [Sun Fire T200]
> > > > > [ 1.910564] PLATFORM: name [SUNW,Sun-Fire-T200]
> > > > > [ 1.910919] PLATFORM: hostid [84869926]
> > > > > [ 1.911224] PLATFORM: serial# [00ab4130]pci_sun4v: Could not
> > > > > register
> > > > > hvapi ATU err=-22
> > > > > [ 1.911536] PLATFORM: stick-frequency [3b9aca00]
> > > > > [ 1.911894] PLATFORM: mac-address [144f869926]
> > > > > [ 1.912241] PLATFORM: watchdog-resolution [1000 ms]
> > > > > [ 1.912619] PLATFORM: watchdog-max-timeout [31536000000 ms]
> > > > > [ 1.913042] PLATFORM: max-cpus [32]
> > > > > [ 1.913501] Top of RAM: 0x3ffd34000, Total RAM: 0x3f7918000
> > > > > [ 1.913936] Memory hole size: 132MB
> > > > > [ 2.279507] Allocated 16384 bytes for kernel page tables.
> > > > > [ 2.280578] Zone ranges:
> > > > > [ 2.280819] Normal [mem 0x0000000008400000-0x00000003ffd33fff]
> > > > > [ 2.281292] Movable zone start for each node
> > > > > [ 2.281626] Early memory node ranges
> > > > > [ 2.281916] node 0: [mem 0x0000000008400000-0x00000003ffc1ffff]
> > > > > [ 2.282557] node 0: [mem 0x00000003ffc28000-0x00000003ffcfdfff]
> > > > > [ 2.283030] node 0: [mem 0x00000003ffd0e000-0x00000003ffd27fff]
> > > > > [ 2.283514] node 0: [mem 0x00000003ffd2c000-0x00000003ffd33fff]
> > > > > [ 2.283994] Initmem setup node 0 [mem
> > > > > 0x0000000008400000-0x00000003ffd33fff]
> > > > > [ 2.782262] Booting Linux...
> > > > > [ 2.782734] CPU CAPS:
> > > > > [flush,stbar,swap,muldiv,v9,blkinit,mul32,div32]
> > > > > [ 2.783255] CPU CAPS: [v8plus,ASIBlkInit]
> > > > > [ 2.897543] percpu: Embedded 12 pages/cpu @ffff8003ff800000 s55872
> > > > > r8192 d34240 u262144
> > > > > [ 2.913264] SUN4V: Mondo queue sizes [cpu(4096) dev(16384) r(8192)
> > > > > nr(256)]
> > > > > [ 2.915492] Built 1 zonelists in Node order, mobility grouping on.
> > > > > Total pages: 2063634
> > > > > [ 2.916160] Policy zone: Normal
> > > > > [ 2.916420] Kernel command line: root=/dev/sda1 ro
> > > > > [ 2.918743] PID hash table entries: 4096 (order: 2, 32768 bytes)
> > > > > [ 2.919230] Sorting __ex_table...
> > > > > [ 3.220450] Memory: 16497120K/16639072K available (5521K kernel
> > > > > code,
> > > > > 530K rwdata, 1224K rodata, 336K init, 699K bss, 141952K reserved, 0K
> > > > > cma-reserved)pci_sun4v: Could not register hvapi ATU err=-22
> > > > > [ 3.223109] Hierarchical RCU implementation.
> > > > > [ 3.223452] RCU restricting CPUs from NR_CPUS=256 to
> > > > > nr_cpu_ids=16.
> > > > > [ 3.223933] RCU: Adjusting geometry for rcu_fanout_leaf=16,
> > > > > nr_cpu_ids=16
> > > > > [ 3.225508] NR_IRQS: 2048, nr_irqs: 2048, preallocated irqs: 1
> > > > > [ 3.225975] SUN4V: Using IRQ API major 1, cookie only virqs
> > > > > disabled
> > > > > [ 3.227643] clocksource: stick: mask: 0xffffffffffffffff
> > > > > max_cycles:
> > > > > 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
> > > > > [ 3.228400] clocksource: mult[800000] shift[23]
> > > > > [ 3.228755] clockevent: mult[80000000] shift[31]
> > > > > [ 3.230304] Console: colour dummy device 80x25
> > > > > [ 3.230662] console [tty0] enabled
> > > > > [ 3.230948] bootconsole [earlyprom0] disabled
> > > > > [ 3.309471] Calibrating delay using timer specific routine..
> > > > > 2014.88
> > > > > BogoMIPS (lpj=4029765)
> > > > > [ 3.309507] pid_max: default: 32768 minimum: 301
> > > > > [ 3.309791] Security Framework initialized
> > > > > [ 3.327582] Dentry cache hash table entries: 2097152 (order: 11,
> > > > > 16777216 bytes)
> > > > > [ 3.336474] Inode-cache hash table entries: 1048576 (order: 10,
> > > > > 8388608
> > > > > bytes)
> > > > > [ 3.336834] Mount-cache hash table entries: 32768 (order: 5, 262144
> > > > > bytes)
> > > > > [ 3.337143] Mountpoint-cache hash table entries: 32768 (order: 5,
> > > > > 262144 bytes)
> > > > > [ 3.339484] Hierarchical SRCU implementation.
> > > > > [ 3.341250] smp: Bringing up secondary CPUs ...
> > > > > [ 3.362204] smp: Brought up 1 node, 16 CPUs
> > > > > [ 3.365605] devtmpfs: initialized
> > > > > [ 3.373758] Performance events:
> > > > > [ 3.373796] Testing NMI watchdog ...
> > > > > [ 3.453874] OK.
> > > > > [ 3.453914] Supported PMU type is 'niagara'
> > > > > [ 3.454420] ldc.c:v1.1 (July 22, 2008)
> > > > > [ 3.454439] ldc: Domaining disabled.
> > > > > [ 3.454906] clocksource: jiffies: mask: 0xffffffff max_cycles:
> > > > > 0xffffffff, max_idle_ns: 7645041785100000 ns
> > > > > [ 3.455041] futex hash table entries: 4096 (order: 5, 262144 bytes)
> > > > > [ 3.456859] NET: Registered protocol family 16
> > > > > [ 3.471474] VIO: Adding device channel-devices (tx_ino =
> > > > > ffffffffffffffff, rx_ino = ffffffffffffffff)
> > > > > [ 3.471707] VIO: Adding device vldc-port-0-0 (tx_ino = 0, rx_ino =
> > > > > 1)
> > > > > [ 3.471883] VIO: Adding device vldc-port-0-1 (tx_ino = 2, rx_ino =
> > > > > 3)
> > > > > [ 3.472070] VIO: Adding device vldc-port-0-2 (tx_ino = 6, rx_ino =
> > > > > 7)
> > > > > [ 3.472247] VIO: Adding device vldc-port-1-0 (tx_ino = 8, rx_ino =
> > > > > 9)
> > > > > [ 3.472431] VIO: Adding device vldc-port-3-0 (tx_ino = 28, rx_ino =
> > > > > 29)
> > > > > [ 3.472613] VIO: Adding device vldc-port-3-8 (tx_ino = 1a, rx_ino =
> > > > > 1b)
> > > > > [ 3.472806] VIO: Adding device domain-services-port-1 (tx_ino = 2e,
> > > > > rx_ino = 2f)
> > > > > [ 3.473032] VIO: Adding device domain-services-port-0 (tx_ino = 4,
> > > > > rx_ino = 5)
> > > > > [ 3.483410] pci_sun4v: Registered hvapi major[1] minor[0]
> > > > > [ 3.483468] pci_sun4v: Could not register hvapi ATU err=-22
> > > > > [ 3.483660] /pci@780: SUN4V PCI Bus Module
> > > > > [ 3.483712] /pci@780: On NUMA node -1
> > > > > [ 3.483765] /pci@780: PCI IO[e810000000] MEM[ea00000000]
> > > > > [ 3.483770] MEM64[ec00000000]
> > > > > [ 3.483820]
> > > > > [ 3.483919] /pci@780: Unable to request IOMMU resource.
> > > > > [ 3.534438] /pci@780: MSI Queue first[0] num[36] count[128]
> > > > > devino[0x18]
> > > > > [ 3.534504] /pci@780: MSI first[0] num[256] mask[0xff] width[32]
> > > > > [ 3.534584] /pci@780: MSI addr32[0x7fff0000:0x10000]
> > > > > addr64[0x3ffff0000:0x10000]
> > > > > [ 3.534676] /pci@780: MSI queues at RA [00000003f1d00000]
> > > > > [ 3.534733] PCI: Scanning PBM /pci@780
> > > > > [ 3.535009] pci_sun4v f027e92c: PCI host bridge to bus 0000:02
> > > > > [ 3.535080] pci_bus 0000:02: root bus resource [io
> > > > > 0xe810000000-0xe81fffffff] (bus address [0x0000-0xfffffff])
> > > > > [ 3.535186] pci_bus 0000:02: root bus resource [mem
> > > > > 0xea00000000-0xea7ffeffff] (bus address [0x00000000-0x7ffeffff])
> > > > > [ 3.535298] pci_bus 0000:02: root bus resource [mem
> > > > > 0xec00000000-0xeffffeffff] (bus address [0x200000000-0x5fffeffff])
> > > > > [ 3.535401] pci_bus 0000:02: root bus resource [bus 02-07]
> > > > > [ 3.543213] /pci@7c0: SUN4V PCI Bus Module
> > > > > [ 3.543268] /pci@7c0: On NUMA node -1
> > > > > [ 3.543322] /pci@7c0: PCI IO[f010000000] MEM[f200000000]
> > > > > [ 3.543326] MEM64[f400000000]
> > > > > [ 3.543377]
> > > > > [ 3.543476] /pci@7c0: Unable to request IOMMU resource.
> > > > > [ 3.593995] /pci@7c0: MSI Queue first[0] num[36] count[128]
> > > > > devino[0x18]
> > > > > [ 3.594060] /pci@7c0: MSI first[0] num[256] mask[0xff] width[32]
> > > > > [ 3.594116] /pci@7c0: MSI addr32[0x7fff0000:0x10000]
> > > > > addr64[0x3ffff0000:0x10000]
> > > > > [ 3.594205] /pci@7c0: MSI queues at RA [00000003f1e00000]
> > > > > [ 3.594261] PCI: Scanning PBM /pci@7c0
> > > > > [ 3.594538] pci_sun4v f0287174: PCI host bridge to bus 0001:02
> > > > > [ 3.594609] pci_bus 0001:02: root bus resource [io
> > > > > 0xf010000000-0xf01fffffff] (bus address [0x0000-0xfffffff])
> > > > > [ 3.594721] pci_bus 0001:02: root bus resource [mem
> > > > > 0xf200000000-0xf27ffeffff] (bus address [0x00000000-0x7ffeffff])
> > > > > [ 3.594827] pci_bus 0001:02: root bus resource [mem
> > > > > 0xf400000000-0xf7fffeffff] (bus address [0x200000000-0x5fffeffff])
> > > > > [ 3.594955] pci_bus 0001:02: root bus resource [bus 02-09]
> > > > > [ 3.606120] pci 0001:05:02.0: can't claim BAR 0 [io
> > > > > 0xf010000000-0xf01000ffff]: no compatible bridge window
> > > > > [ 3.612721] HugeTLB registered 8 MB page size, pre-allocated 0
> > > > > pages
> > > > > [ 3.615102] vgaarb: loaded
> > > > > [ 3.615570] SCSI subsystem initialized
> > > > > [ 3.617634] ds.c:v1.0 (Jul 11, 2007)
> > > > > [ 3.618074] clocksource: Switched to clocksource stick
> > > > > [ 3.692013] VFS: Disk quotas dquot_6.6.0
> > > > > [ 3.692220] VFS: Dquot-cache hash table entries: 1024 (order 0,
> > > > > 8192
> > > > > bytes)
> > > > > [ 3.706128] NET: Registered protocol family 2
> > > > > [ 3.707660] TCP established hash table entries: 131072 (order: 7,
> > > > > 1048576 bytes)
> > > > > [ 3.711826] TCP bind hash table entries: 65536 (order: 7, 1048576
> > > > > bytes)
> > > > > [ 3.715734] TCP: Hash tables configured (established 131072 bind
> > > > > 65536)
> > > > > [ 3.716217] UDP hash table entries: 8192 (order: 5, 262144 bytes)
> > > > > [ 3.717567] UDP-Lite hash table entries: 8192 (order: 5, 262144
> > > > > bytes)
> > > > > [ 3.719443] NET: Registered protocol family 1
> > > > > [ 3.719775] pci 0001:05:02.0: Activating ISA DMA hang workarounds
> > > > > [ 3.841387] audit: initializing netlink subsys (disabled)
> > > > > [ 3.841702] audit: type=2000 audit(0.607:1): state=initialized
> > > > > audit_enabled=0 res=1
> > > > > [ 3.842350] workingset: timestamp_bits=58 max_order=21
> > > > > bucket_order=0
> > > > > [ 3.851636] Block layer SCSI generic (bsg) driver version 0.4
> > > > > loaded
> > > > > (major 252)
> > > > > [ 3.851733] io scheduler noop registered
> > > > > [ 3.851785] io scheduler deadline registered
> > > > > [ 3.851915] io scheduler cfq registered (default)
> > > > > [ 3.851971] io scheduler mq-deadline registered
> > > > > [ 3.861058] f027a9b0: ttyS0 at I/O 0x0 (irq = 1, base_baud =
> > > > > 115200) is
> > > > > a SUN4V HCONS
> > > > > [ 4.422839] console [ttyHV0] enabled
> > > > > [ 4.424326] f02bd6ec: ttyS1 at MMIO 0xf0100003f8 (irq = 25,
> > > > > base_baud =
> > > > > 115387) is a 16550A
> > > > > [ 4.432085] Fusion MPT base driver 3.04.20
> > > > > [ 4.432153] Copyright (c) 1999-2008 LSI Corporation
> > > > > [ 4.432236] Fusion MPT SAS Host driver 3.04.20
> > > > > [ 4.469902] mptbase: ioc0: Initiating bringup
> > > > > [ 5.470093] ioc0: LSISAS1064E B1: Capabilities={Initiator}
> > > > > [ 5.470792] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.470922] tsk->{mm,active_mm}->context = 0000000000000000
> > > > > [ 5.470999] tsk->{mm,active_mm}->pgd = ffff800008802000
> > > > > [ 5.471075] \|/ ____ \|/
> > > > > [ 5.471075] "@'/ .. \`@"
> > > > > [ 5.471075] /_| \__/ |_\
> > > > > [ 5.471075] \__U_/
> > > > > [ 5.471302] swapper/0(1): Oops [#1]
> > > > > [ 5.471371] CPU: 4 PID: 1 Comm: swapper/0 Not tainted
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.471489] task: ffff8003f1647320 task.stack: ffff8003f1648000
> > > > > [ 5.471570] TSTATE: 0000000080001602 TPC: 000000000074becc TNPC:
> > > > > 000000000074bed0 Y: 00000000 Not tainted
> > > > > [ 5.471709] TPC: <iommu_tbl_range_alloc+0xc/0x3e0>
> > > > > [ 5.471777] g0: ffff80000841fc00 g1: 0000000000000000 g2:
> > > > > ffff8003f1ccb800 g3: 0000000001080020
> > > > > [ 5.471896] g4: ffff8003f1647320 g5: ffff8003fed90000 g6:
> > > > > ffff8003f1648000 g7: 00000000000000e2
> > > > > [ 5.472016] o0: ffff8003f1cfd0a0 o1: 0000000000000027 o2:
> > > > > ffff8003f164b348 o3: 0000000001080020
> > > > > [ 5.472135] o4: 0000000000000000 o5: 0000000000000000 sp:
> > > > > ffff8003f164a8d1 ret_pc: 00000000007e0c48
> > > > > [ 5.472265] RPC: <PrimeIocFifos+0x2c8/0xa00>
> > > > > [ 5.472333] l0: 0000000000000006 l1: ffffffffffffffff l2:
> > > > > 0000000000000010 l3: ffff8003ee400000
> > > > > [ 5.472453] l4: ffff8003ee400000 l5: 0000000000002000 l6:
> > > > > 0000000000800700 l7: 00000000f025cfd8
> > > > > [ 5.472572] i0: ffff8003f1cfd0a0 i1: 0000000000000010 i2:
> > > > > 0000000000000027 i3: 0000000000000000
> > > > > [ 5.472692] i4: ffffffffffffffff i5: 0000000000000000 i6:
> > > > > ffff8003f164a9d1 i7: 00000000004476f8
> > > > > [ 5.472817] I7: <dma_4v_alloc_coherent+0x158/0x2e0>
> > > > > [ 5.472880] Call Trace:
> > > > > [ 5.472948] [00000000004476f8] dma_4v_alloc_coherent+0x158/0x2e0
> > > > > [ 5.473034] [00000000007e0c48] PrimeIocFifos+0x2c8/0xa00
> > > > > [ 5.473121] [00000000007e74fc] mpt_do_ioc_recovery+0x5fc/0x1700
> > > > > [ 5.473207] [00000000007e9040] mpt_attach+0x480/0xc60
> > > > > [ 5.473293] [00000000007f4248] mptsas_probe+0x8/0x440
> > > > > [ 5.473381] [000000000075c390] local_pci_probe+0x30/0xa0
> > > > > [ 5.473465] [000000000075ca08] pci_device_probe+0xa8/0x140
> > > > > [ 5.473552] [00000000007a7820] driver_probe_device+0x240/0x300
> > > > > [ 5.473635] [00000000007a7990] __driver_attach+0xb0/0xc0
> > > > > [ 5.473717] [00000000007a5954] bus_for_each_dev+0x54/0xa0
> > > > > [ 5.473799] [00000000007a6d04] bus_add_driver+0x1a4/0x240
> > > > > [ 5.473882] [00000000007a806c] driver_register+0x6c/0x100
> > > > > [ 5.473970] [0000000000b5615c] mptsas_init+0x110/0x138
> > > > > [ 5.474052] [0000000000426cd0] do_one_initcall+0x30/0x160
> > > > > [ 5.474165] [0000000000b2aba8] kernel_init_freeable+0x194/0x224
> > > > > [ 5.474254] [0000000000962de4] kernel_init+0x4/0x120
> > > > > [ 5.474329] Disabling lock debugging due to kernel taint
> > > > > [ 5.474414] Caller[00000000004476f8]:
> > > > > dma_4v_alloc_coherent+0x158/0x2e0
> > > > > [ 5.474502] Caller[00000000007e0c48]: PrimeIocFifos+0x2c8/0xa00
> > > > > [ 5.474590] Caller[00000000007e74fc]:
> > > > > mpt_do_ioc_recovery+0x5fc/0x1700
> > > > > [ 5.474678] Caller[00000000007e9040]: mpt_attach+0x480/0xc60
> > > > > [ 5.474762] Caller[00000000007f4248]: mptsas_probe+0x8/0x440
> > > > > [ 5.474848] Caller[000000000075c390]: local_pci_probe+0x30/0xa0
> > > > > [ 5.474933] Caller[000000000075ca08]: pci_device_probe+0xa8/0x140
> > > > > [ 5.475018] Caller[00000000007a7820]:
> > > > > driver_probe_device+0x240/0x300
> > > > > [ 5.475103] Caller[00000000007a7990]: __driver_attach+0xb0/0xc0
> > > > > [ 5.475186] Caller[00000000007a5954]: bus_for_each_dev+0x54/0xa0
> > > > > [ 5.475269] Caller[00000000007a6d04]: bus_add_driver+0x1a4/0x240
> > > > > [ 5.475353] Caller[00000000007a806c]: driver_register+0x6c/0x100
> > > > > [ 5.475439] Caller[0000000000b5615c]: mptsas_init+0x110/0x138
> > > > > [ 5.475521] Caller[0000000000426cd0]: do_one_initcall+0x30/0x160
> > > > > [ 5.475603] Caller[0000000000b2aba8]:
> > > > > kernel_init_freeable+0x194/0x224
> > > > > [ 5.475689] Caller[0000000000962de4]: kernel_init+0x4/0x120
> > > > > [ 5.475776] Caller[0000000000406064]: ret_from_fork+0x1c/0x2c
> > > > > [ 5.475854] Caller[0000000000000000]: (null)
> > > > > [ 5.475928] Instruction DUMP:
> > > > > [ 5.475933] 9de3bf00
> > > > > [ 5.475994] 80a6a00f
> > > > > [ 5.476053] 82102000
> > > > > [ 5.476112] <c4066228>
> > > > > [ 5.476171] 83673001
> > > > > [ 5.476231] a0102000
> > > > > [ 5.476289] f477a88f
> > > > > [ 5.476348] 82088001
> > > > > [ 5.476408] f677a897
> > > > > [ 5.476466]
> > > > > [ 5.476600] Kernel panic - not syncing: Attempted to kill init!
> > > > > exitcode=0x00000009
> > > > > [ 5.476600]
> > > > > [ 5.476845] OOPS: Bogus kernel PC [0000000000000f00] in fault
> > > > > handler
> > > > > [ 5.476850] OOPS: RPC [000000000042c6c0]
> > > > > [ 5.476865] OOPS: RPC <arch_cpu_idle+0x60/0xa0>
> > > > > [ 5.476869] OOPS: Fault was to vaddr[f00]
> > > > > [ 5.476879] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.476883] Call Trace:
> > > > > [ 5.476899] [0000000000457368] do_sparc64_fault+0x3c8/0x780
> > > > > [ 5.476910] [0000000000407c1c] sparc64_realfault_common+0x10/0x20
> > > > > [ 5.476917] [0000000000000f00] 0xf00
> > > > > [ 5.476927] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.476936] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.476945] [0000000000b2aa04] start_kernel+0x410/0x420
> > > > > [ 5.476956] [0000000000962d0c] tlb_fixup_done+0x4c/0x60
> > > > > [ 5.476961] [0000000000000000] (null)
> > > > > [ 5.476965] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.476969] tsk->{mm,active_mm}->context = 0000000000000000
> > > > > [ 5.476973] tsk->{mm,active_mm}->pgd = ffff800008802000
> > > > > [ 5.476977] \|/ ____ \|/
> > > > > [ 5.476977] "@'/ .. \`@"
> > > > > [ 5.476977] /_| \__/ |_\
> > > > > [ 5.476977] \__U_/
> > > > > [ 5.476981] swapper/0(0): Oops [#2]
> > > > > [ 5.476991] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.476997] task: 0000000000ab38c0 task.stack: 0000000000a9c000
> > > > > [ 5.477006] TSTATE: 0000004480001604 TPC: 0000000000000f00 TNPC:
> > > > > 0000000000000f04 Y: 00000000 Tainted: G D
> > > > > [ 5.477011] TPC: <0xf00>
> > > > > [ 5.477017] g0: 0000000000000008 g1: 0000000000000016 g2:
> > > > > 00000000f0200000 g3: 00000000fff78000
> > > > > [ 5.477024] g4: 0000000000005a20 g5: ffff8003fec90000 g6:
> > > > > 0000000000a9c000 g7: 0000000004004000
> > > > > [ 5.477030] o0: 0000000000000f00 o1: 0000000000000000 o2:
> > > > > 0000000000000000 o3: 0000000000000000
> > > > > [ 5.477037] o4: 0000000000000000 o5: 0000000000000000 sp:
> > > > > 0000000000a9f461 ret_pc: 000000000042c6c0
> > > > > [ 5.477047] RPC: <arch_cpu_idle+0x60/0xa0>
> > > > > [ 5.477055] l0: 0000000040004190 l1: 000000004000407c l2:
> > > > > 0000000040004059 l3: 0000000000000040
> > > > > [ 5.477061] l4: 00000000f027e7f8 l5: 0000000040004128 l6:
> > > > > 0000000000140008 l7: 00000000f025cfd8
> > > > > [ 5.477068] i0: 000000000000000e i1: 0000000000a9c008 i2:
> > > > > 0000000000004000 i3: 0000000000000f00
> > > > > [ 5.477074] i4: 00000000fef42ff8 i5: 00000000fef41800 i6:
> > > > > 0000000000a9f511 i7: 00000000004a8d24
> > > > > [ 5.477082] I7: <do_idle+0xc4/0x180>
> > > > > [ 5.477085] Call Trace:
> > > > > [ 5.477094] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.477102] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.477111] [0000000000b2aa04] start_kernel+0x410/0x420
> > > > > [ 5.477121] [0000000000962d0c] tlb_fixup_done+0x4c/0x60
> > > > > [ 5.477126] [0000000000000000] (null)
> > > > > [ 5.477135] Caller[00000000004a8d24]: do_idle+0xc4/0x180
> > > > > [ 5.477143] Caller[00000000004a8ffc]: cpu_startup_entry+0x1c/0x40
> > > > > [ 5.477152] Caller[0000000000b2aa04]: start_kernel+0x410/0x420
> > > > > [ 5.477161] Caller[0000000000962d0c]: tlb_fixup_done+0x4c/0x60
> > > > > [ 5.477166] Caller[0000000000000000]: (null)
> > > > > [ 5.477168] Instruction DUMP:
> > > > > [ 5.477176] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.477180] tsk->{mm,active_mm}->context = 0000000000000000
> > > > > [ 5.477184] tsk->{mm,active_mm}->pgd = ffff800008802000
> > > > > [ 5.477188] \|/ ____ \|/
> > > > > [ 5.477188] "@'/ .. \`@"
> > > > > [ 5.477188] /_| \__/ |_\
> > > > > [ 5.477188] \__U_/
> > > > > [ 5.477193] swapper/0(0): Oops [#3]
> > > > > [ 5.477202] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.477208] task: 0000000000ab38c0 task.stack: 0000000000a9c000
> > > > > [ 5.477217] TSTATE: 0000008880001600 TPC: 0000000000428a28 TNPC:
> > > > > 0000000000428a2c Y: 00000000 Tainted: G D
> > > > > [ 5.477225] TPC: <die_if_kernel+0x288/0x300>
> > > > > [ 5.477232] g0: 0000000000a9ff40 g1: 0000000000a10000 g2:
> > > > > 0000000000000000 g3: 0000000000bc1fdc
> > > > > [ 5.477239] g4: 0000000000ab38c0 g5: ffff8003fec90000 g6:
> > > > > 0000000000a9c000 g7: 000000000000000e
> > > > > [ 5.477245] o0: 0000000000a10340 o1: 0000000000000000 o2:
> > > > > 0000000000000000 o3: 0000000000000001
> > > > > [ 5.477252] o4: 0000000000a9c000 o5: 0000000000003f40 sp:
> > > > > 0000000000a9f0c1 ret_pc: 0000000000428a0c
> > > > > [ 5.477259] RPC: <die_if_kernel+0x26c/0x300>
> > > > > [ 5.477266] l0: 0000000000a9cb80 l1: 0000000000b8e800 l2:
> > > > > 0000000000000000 l3: 0000000000b8e000
> > > > > [ 5.477273] l4: 0000000000a9ff40 l5: 0000000000000f00 l6:
> > > > > 0000000000a9c000 l7: 0000000080001005
> > > > > [ 5.477279] i0: 0000000000a9c000 i1: 0000000000a9fbc0 i2:
> > > > > 0000000000000ef4 i3: fffffffffffffffe
> > > > > [ 5.477286] i4: 0000000000a10340 i5: 0000000000000f00 i6:
> > > > > 0000000000a9f1a1 i7: 00000000004577a4
> > > > > [ 5.477297] I7: <unhandled_fault+0x84/0xa0>
> > > > > [ 5.477300] Call Trace:
> > > > > [ 5.477310] [00000000004577a4] unhandled_fault+0x84/0xa0
> > > > > [ 5.477319] [0000000000457378] do_sparc64_fault+0x3d8/0x780
> > > > > [ 5.477329] [0000000000407c1c] sparc64_realfault_common+0x10/0x20
> > > > > [ 5.477335] [0000000000000f00] 0xf00
> > > > > [ 5.477344] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.477353] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.477361] [0000000000b2aa04] start_kernel+0x410/0x420
> > > > > [ 5.477372] [0000000000962d0c] tlb_fixup_done+0x4c/0x60
> > > > > [ 5.477376] [0000000000000000] (null)
> > > > > [ 5.477388] Caller[00000000004577a4]: unhandled_fault+0x84/0xa0
> > > > > [ 5.477398] Caller[0000000000457378]: do_sparc64_fault+0x3d8/0x780
> > > > > [ 5.477407] Caller[0000000000407c1c]:
> > > > > sparc64_realfault_common+0x10/0x20
> > > > > [ 5.477419] Caller[000000000042c6c0]: arch_cpu_idle+0x60/0xa0
> > > > > [ 5.477428] Caller[00000000004a8d24]: do_idle+0xc4/0x180
> > > > > [ 5.477437] Caller[00000000004a8ffc]: cpu_startup_entry+0x1c/0x40
> > > > > [ 5.477446] Caller[0000000000b2aa04]: start_kernel+0x410/0x420
> > > > > [ 5.477456] Caller[0000000000962d0c]: tlb_fixup_done+0x4c/0x60
> > > > > [ 5.477461] Caller[0000000000000000]: (null)
> > > > > [ 5.477463] Instruction DUMP:
> > > > > [ 5.477467] 80a6e001
> > > > > [ 5.477470] 02400014
> > > > > [ 5.477474] 9010001c
> > > > > [ 5.477478] <d4068000>
> > > > > [ 5.477481] 92102020
> > > > > [ 5.477485] 40023bb4
> > > > > [ 5.477489] 96102020
> > > > > [ 5.477492] 80a6e006
> > > > > [ 5.477496] 0247ffec
> > > > > [ 5.477499]
> > > > > [ 5.496882] OOPS: Bogus kernel PC [0000000000000740] in fault
> > > > > handler
> > > > > [ 5.496887] OOPS: RPC [000000000042c6c0]
> > > > > [ 5.496899] OOPS: RPC <arch_cpu_idle+0x60/0xa0>
> > > > > [ 5.496904] OOPS: Fault was to vaddr[740]
> > > > > [ 5.496914] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.496917] Call Trace:
> > > > > [ 5.496931] [0000000000457368] do_sparc64_fault+0x3c8/0x780
> > > > > [ 5.496942] [0000000000407c1c] sparc64_realfault_common+0x10/0x20
> > > > > [ 5.496948] [0000000000000740] 0x740
> > > > > [ 5.496958] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.496967] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.496974] [0000000000aba494] 0xaba494
> > > > > [ 5.496979] [0000000000000000] (null)
> > > > > [ 5.496983] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.496987] tsk->{mm,active_mm}->context = 0000000000000000
> > > > > [ 5.496992] tsk->{mm,active_mm}->pgd = ffff800008802000
> > > > > [ 5.496996] \|/ ____ \|/
> > > > > [ 5.496996] "@'/ .. \`@"
> > > > > [ 5.496996] /_| \__/ |_\
> > > > > [ 5.496996] \__U_/
> > > > > [ 5.497001] swapper/1(0): Oops [#4]
> > > > > [ 5.497012] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.497018] task: ffff8003f1685140 task.stack: ffff8003f1698000
> > > > > [ 5.497027] TSTATE: 0000004480001603 TPC: 0000000000000740 TNPC:
> > > > > 0000000000000744 Y: 00000000 Tainted: G D
> > > > > [ 5.497033] TPC: <0x740>
> > > > > [ 5.497040] g0: 0000000000000000 g1: 0000000000000016 g2:
> > > > > 00000000f0200000 g3: 00000000fff78000
> > > > > [ 5.497048] g4: 0000000000005a20 g5: ffff8003fecd0000 g6:
> > > > > ffff8003f1698000 g7: 0000000003004000
> > > > > [ 5.497055] o0: 0000000000000740 o1: 0000000000000000 o2:
> > > > > 0000000000000000 o3: 0000000000000000
> > > > > [ 5.497063] o4: 0000000000000000 o5: 0000000000000000 sp:
> > > > > ffff8003f169b531 ret_pc: 000000000042c6c0
> > > > > [ 5.497074] RPC: <arch_cpu_idle+0x60/0xa0>
> > > > > [ 5.497082] l0: 0000000000b93e20 l1: 0000000000005a10 l2:
> > > > > 0000000000000011 l3: 0000000000400000
> > > > > [ 5.497089] l4: 80000000088007c3 l5: 0000000000000003 l6:
> > > > > 0000000000000003 l7: 0000000000000000
> > > > > [ 5.497096] i0: 000000000000000e i1: ffff8003f1698008 i2:
> > > > > 0000000000004000 i3: 0000000000000740
> > > > > [ 5.497104] i4: 00000000fef48ff8 i5: 00000000fef47800 i6:
> > > > > ffff8003f169b5e1 i7: 00000000004a8d24
> > > > > [ 5.497112] I7: <do_idle+0xc4/0x180>
> > > > > [ 5.497116] Call Trace:
> > > > > [ 5.497125] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.497134] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.497141] [0000000000aba494] 0xaba494
> > > > > [ 5.497146] [0000000000000000] (null)
> > > > > [ 5.497155] Caller[00000000004a8d24]: do_idle+0xc4/0x180
> > > > > [ 5.497165] Caller[00000000004a8ffc]: cpu_startup_entry+0x1c/0x40
> > > > > [ 5.497172] Caller[0000000000aba494]: 0xaba494
> > > > > [ 5.497176] Caller[0000000000000000]: (null)
> > > > > [ 5.497179] Instruction DUMP:
> > > > > [ 5.497186] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.497191] tsk->{mm,active_mm}->context = 0000000000000000
> > > > > [ 5.497195] tsk->{mm,active_mm}->pgd = ffff800008802000
> > > > > [ 5.497199] \|/ ____ \|/
> > > > > [ 5.497199] "@'/ .. \`@"
> > > > > [ 5.497199] /_| \__/ |_\
> > > > > [ 5.497199] \__U_/
> > > > > [ 5.497204] swapper/1(0): Oops [#5]
> > > > > [ 5.497215] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.497222] task: ffff8003f1685140 task.stack: ffff8003f1698000
> > > > > [ 5.497231] TSTATE: 0000008880001607 TPC: 0000000000428a28 TNPC:
> > > > > 0000000000428a2c Y: 00000000 Tainted: G D
> > > > > [ 5.497240] TPC: <die_if_kernel+0x288/0x300>
> > > > > [ 5.497248] g0: ffff8003f169bf40 g1: 0000000000a10000 g2:
> > > > > 0000000000000000 g3: 0000000000bc1fdc
> > > > > [ 5.497256] g4: ffff8003f1685140 g5: ffff8003fecd0000 g6:
> > > > > ffff8003f1698000 g7: 000000000000000e
> > > > > [ 5.497262] o0: 0000000000a10340 o1: 0000000000000000 o2:
> > > > > 0000000000000000 o3: 0000000000000001
> > > > > [ 5.497270] o4: ffff8003f1698000 o5: 0000000000003f40 sp:
> > > > > ffff8003f169b191 ret_pc: 0000000000428a0c
> > > > > [ 5.497279] RPC: <die_if_kernel+0x26c/0x300>
> > > > > [ 5.497287] l0: ffff8003f1698b80 l1: 0000000000b8e800 l2:
> > > > > 0000000000000000 l3: 0000000000b8e000
> > > > > [ 5.497295] l4: ffff8003f169bf40 l5: 0000000000000740 l6:
> > > > > ffff8003f1698000 l7: 0000000080001004
> > > > > [ 5.497302] i0: ffff8003f1698000 i1: ffff8003f169bc90 i2:
> > > > > 0000000000000734 i3: fffffffffffffffe
> > > > > [ 5.497310] i4: 0000000000a10340 i5: 0000000000000740 i6:
> > > > > ffff8003f169b271 i7: 00000000004577a4
> > > > > [ 5.497321] I7: <unhandled_fault+0x84/0xa0>
> > > > > [ 5.497325] Call Trace:
> > > > > [ 5.497336] [00000000004577a4] unhandled_fault+0x84/0xa0
> > > > > [ 5.497346] [0000000000457378] do_sparc64_fault+0x3d8/0x780
> > > > > [ 5.497357] [0000000000407c1c] sparc64_realfault_common+0x10/0x20
> > > > > [ 5.497363] [0000000000000740] 0x740
> > > > > [ 5.497373] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.497383] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.497389] [0000000000aba494] 0xaba494
> > > > > [ 5.497394] [0000000000000000] (null)
> > > > > [ 5.497406] Caller[00000000004577a4]: unhandled_fault+0x84/0xa0
> > > > > [ 5.497417] Caller[0000000000457378]: do_sparc64_fault+0x3d8/0x780
> > > > > [ 5.497427] Caller[0000000000407c1c]:
> > > > > sparc64_realfault_common+0x10/0x20
> > > > > [ 5.497440] Caller[000000000042c6c0]: arch_cpu_idle+0x60/0xa0
> > > > > [ 5.497450] Caller[00000000004a8d24]: do_idle+0xc4/0x180
> > > > > [ 5.497460] Caller[00000000004a8ffc]: cpu_startup_entry+0x1c/0x40
> > > > > [ 5.497467] Caller[0000000000aba494]: 0xaba494
> > > > > [ 5.497471] Caller[0000000000000000]: (null)
> > > > > [ 5.497474] Instruction DUMP:
> > > > > [ 5.497478] 80a6e001
> > > > > [ 5.497481] 02400014
> > > > > [ 5.497485] 9010001c
> > > > > [ 5.497489] <d4068000>
> > > > > [ 5.497493] 92102020
> > > > > [ 5.497497] 40023bb4
> > > > > [ 5.497501] 96102020
> > > > > [ 5.497505] 80a6e006
> > > > > [ 5.497509] 0247ffec
> > > > > [ 5.497511]
> > > > > [ 5.516924] OOPS: Bogus kernel PC [00000000000005c0] in fault
> > > > > handler
> > > > > [ 5.516929] OOPS: RPC [000000000042c6c0]
> > > > > [ 5.516943] OOPS: RPC <arch_cpu_idle+0x60/0xa0>
> > > > > [ 5.516948] OOPS: Fault was to vaddr[5c0]
> > > > > [ 5.516960] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G D
> > > > > 4.12.0-08915-gf263fbb #141
> > > > > [ 5.516964] Call Trace:
> > > > > [ 5.516980] [0000000000457368] do_sparc64_fault+0x3c8/0x780
> > > > > [ 5.516993] [0000000000407c1c] sparc64_realfault_common+0x10/0x20
> > > > > [ 5.517001] [00000000000005c0] 0x5c0
> > > > > [ 5.517012] [00000000004a8d24] do_idle+0xc4/0x180
> > > > > [ 5.517024] [00000000004a8ffc] cpu_startup_entry+0x1c/0x40
> > > > > [ 5.517032] [0000000000aba494] 0xaba494
> > > > > [ 5.517038] [0000000000000000] (null)
> > > > > [ 5.517042] Unable to handle kernel NULL pointer dereference
> > > > > [ 5.517048] tsk->{mm,active_mm}->context = 0000000
> > > > >
> > > > --
> > > > To unsubscribe from this list: send the line "unsubscribe sparclinux" in
> > > > the body of a message to majordomo@xxxxxxxxxxxxxxx
> > > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > > >
> > >
> >
>

--
Meelis Roos (mroos@xxxxxxxx)

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