Revision 9b4fe5fb0bdd8f31f24cbfe77e38ec8155c250c5 authored by Neil Horman on 12 July 2013, 17:35:33 UTC, committed by David S. Miller on 12 July 2013, 23:28:02 UTC
this bug: https://bugzilla.redhat.com/show_bug.cgi?id=951695 Reported a dma debug backtrace: WARNING: at lib/dma-debug.c:937 check_unmap+0x47d/0x930() Hardware name: To Be Filled By O.E.M. via-rhine 0000:00:12.0: DMA-API: device driver failed to check map error[device address=0x0000000075a837b2] [size=90 bytes] [mapped as single] Modules linked in: ip6_tables gspca_spca561 gspca_main videodev media snd_hda_codec_realtek snd_hda_intel i2c_viapro snd_hda_codec snd_hwdep snd_seq ppdev mperf via_rhine coretemp snd_pcm mii microcode snd_page_alloc snd_timer snd_mpu401 snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore parport_pc parport shpchp ata_generic pata_acpi radeon i2c_algo_bit drm_kms_helper ttm drm pata_via sata_via i2c_core uinput Pid: 295, comm: systemd-journal Not tainted 3.9.0-0.rc6.git2.1.fc20.x86_64 #1 Call Trace: <IRQ> [<ffffffff81068dd0>] warn_slowpath_common+0x70/0xa0 [<ffffffff81068e4c>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff8137ec6d>] check_unmap+0x47d/0x930 [<ffffffff810ace9f>] ? local_clock+0x5f/0x70 [<ffffffff8137f17f>] debug_dma_unmap_page+0x5f/0x70 [<ffffffffa0225edc>] ? rhine_ack_events.isra.14+0x3c/0x50 [via_rhine] [<ffffffffa02275f8>] rhine_napipoll+0x1d8/0xd80 [via_rhine] [<ffffffff815d3d51>] ? net_rx_action+0xa1/0x380 [<ffffffff815d3e22>] net_rx_action+0x172/0x380 [<ffffffff8107345f>] __do_softirq+0xff/0x400 [<ffffffff81073925>] irq_exit+0xb5/0xc0 [<ffffffff81724cd6>] do_IRQ+0x56/0xc0 [<ffffffff81719ff2>] common_interrupt+0x72/0x72 <EOI> [<ffffffff8170ff57>] ? __slab_alloc+0x4c2/0x526 [<ffffffff811992e0>] ? mmap_region+0x2b0/0x5a0 [<ffffffff810d5807>] ? __lock_is_held+0x57/0x80 [<ffffffff811992e0>] ? mmap_region+0x2b0/0x5a0 [<ffffffff811bf1bf>] kmem_cache_alloc+0x2df/0x360 [<ffffffff811992e0>] mmap_region+0x2b0/0x5a0 [<ffffffff811998e6>] do_mmap_pgoff+0x316/0x3d0 [<ffffffff81183ca0>] vm_mmap_pgoff+0x90/0xc0 [<ffffffff81197d6c>] sys_mmap_pgoff+0x4c/0x190 [<ffffffff81367d7e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff8101eb42>] sys_mmap+0x22/0x30 [<ffffffff81722fd9>] system_call_fastpath+0x16/0x1b Usual problem with the usual fix, add the appropriate calls to dma_mapping_error where appropriate Untested, as I don't have hardware, but its pretty straightforward Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: David S. Miller <davem@davemloft.net> CC: Roger Luethi <rl@hellgate.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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| accounting | ||
| acpi | ||
| aoe | ||
| arm | ||
| arm64 | ||
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| cgroups | ||
| connector | ||
| console | ||
| cpu-freq | ||
| cpuidle | ||
| cris | ||
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| development-process | ||
| device-mapper | ||
| devicetree | ||
| driver-model | ||
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| i2c | ||
| i2o | ||
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| input | ||
| ioctl | ||
| isdn | ||
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| kbuild | ||
| kdump | ||
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| make | ||
| memory-devices | ||
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| target | ||
| thermal | ||
| timers | ||
| trace | ||
| usb | ||
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| video4linux | ||
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| w1 | ||
| watchdog | ||
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| x86 | ||
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| .gitignore | -rw-r--r-- | 107 bytes |
| 00-INDEX | -rw-r--r-- | 16.6 KB |
| BUG-HUNTING | -rw-r--r-- | 8.1 KB |
| Changes | -rw-r--r-- | 11.7 KB |
| CodingStyle | -rw-r--r-- | 30.8 KB |
| DMA-API-HOWTO.txt | -rw-r--r-- | 31.3 KB |
| DMA-API.txt | -rw-r--r-- | 27.3 KB |
| DMA-ISA-LPC.txt | -rw-r--r-- | 5.2 KB |
| DMA-attributes.txt | -rw-r--r-- | 4.5 KB |
| HOWTO | -rw-r--r-- | 27.2 KB |
| IPMI.txt | -rw-r--r-- | 26.1 KB |
| IRQ-affinity.txt | -rw-r--r-- | 2.5 KB |
| IRQ-domain.txt | -rw-r--r-- | 6.9 KB |
| IRQ.txt | -rw-r--r-- | 962 bytes |
| Intel-IOMMU.txt | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 174 bytes |
| ManagementStyle | -rw-r--r-- | 12.9 KB |
| SAK.txt | -rw-r--r-- | 2.8 KB |
| SM501.txt | -rw-r--r-- | 2.8 KB |
| SecurityBugs | -rw-r--r-- | 1.8 KB |
| SubmitChecklist | -rw-r--r-- | 4.4 KB |
| SubmittingDrivers | -rw-r--r-- | 6.3 KB |
| SubmittingPatches | -rw-r--r-- | 28.9 KB |
| VGA-softcursor.txt | -rw-r--r-- | 2.0 KB |
| applying-patches.txt | -rw-r--r-- | 19.5 KB |
| atomic_ops.txt | -rw-r--r-- | 21.7 KB |
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| basic_profiling.txt | -rw-r--r-- | 1.7 KB |
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| binfmt_misc.txt | -rw-r--r-- | 5.9 KB |
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| bt8xxgpio.txt | -rw-r--r-- | 4.3 KB |
| btmrvl.txt | -rw-r--r-- | 2.9 KB |
| bus-virt-phys-mapping.txt | -rw-r--r-- | 7.9 KB |
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| circular-buffers.txt | -rw-r--r-- | 7.6 KB |
| clk.txt | -rw-r--r-- | 8.9 KB |
| coccinelle.txt | -rw-r--r-- | 8.4 KB |
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| devices.txt | -rw-r--r-- | 115.7 KB |
| digsig.txt | -rw-r--r-- | 2.8 KB |
| dma-buf-sharing.txt | -rw-r--r-- | 20.2 KB |
| dmaengine.txt | -rw-r--r-- | 7.6 KB |
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| dontdiff | -rw-r--r-- | 2.5 KB |
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| io-mapping.txt | -rw-r--r-- | 3.2 KB |
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| irqflags-tracing.txt | -rw-r--r-- | 2.6 KB |
| isapnp.txt | -rw-r--r-- | 433 bytes |
| java.txt | -rw-r--r-- | 10.7 KB |
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| kernel-parameters.txt | -rw-r--r-- | 117.5 KB |
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| kmemcheck.txt | -rw-r--r-- | 29.8 KB |
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| logo.txt | -rw-r--r-- | 563 bytes |
| magic-number.txt | -rw-r--r-- | 9.7 KB |
| md.txt | -rw-r--r-- | 25.3 KB |
| media-framework.txt | -rw-r--r-- | 14.7 KB |
| memory-barriers.txt | -rw-r--r-- | 82.4 KB |
| memory-hotplug.txt | -rw-r--r-- | 15.9 KB |
| mono.txt | -rw-r--r-- | 2.5 KB |
| mutex-design.txt | -rw-r--r-- | 5.8 KB |
| nommu-mmap.txt | -rw-r--r-- | 12.7 KB |
| numastat.txt | -rw-r--r-- | 836 bytes |
| oops-tracing.txt | -rw-r--r-- | 12.5 KB |
| padata.txt | -rw-r--r-- | 7.3 KB |
| parport-lowlevel.txt | -rw-r--r-- | 32.2 KB |
| parport.txt | -rw-r--r-- | 8.8 KB |
| percpu-rw-semaphore.txt | -rw-r--r-- | 1.1 KB |
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| sgi-visws.txt | -rw-r--r-- | 678 bytes |
| smsc_ece1099.txt | -rw-r--r-- | 2.4 KB |
| sparse.txt | -rw-r--r-- | 3.8 KB |
| spinlocks.txt | -rw-r--r-- | 6.5 KB |
| stable_api_nonsense.txt | -rw-r--r-- | 9.2 KB |
| stable_kernel_rules.txt | -rw-r--r-- | 4.4 KB |
| static-keys.txt | -rw-r--r-- | 11.9 KB |
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| sysfs-rules.txt | -rw-r--r-- | 8.1 KB |
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| this_cpu_ops.txt | -rw-r--r-- | 6.4 KB |
| unaligned-memory-access.txt | -rw-r--r-- | 10.0 KB |
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| vfio.txt | -rw-r--r-- | 15.9 KB |
| vgaarbiter.txt | -rw-r--r-- | 8.1 KB |
| video-output.txt | -rw-r--r-- | 1.1 KB |
| vme_api.txt | -rw-r--r-- | 13.1 KB |
| volatile-considered-harmful.txt | -rw-r--r-- | 5.6 KB |
| workqueue.txt | -rw-r--r-- | 14.9 KB |
| ww-mutex-design.txt | -rw-r--r-- | 12.4 KB |
| xz.txt | -rw-r--r-- | 5.7 KB |
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