copying from transcend 16Gb sdhc I card on laptop slowdowns after 100-300Mb dmesg repeatedly spam about [ 336.101876] DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:16:00.0 [ 336.106637] DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:16:00.0 [ 336.106637] ------------[ cut here ]------------ [ 336.106637] WARNING: CPU: 2 PID: 0 at drivers/mmc/host/sdhci.c:856 sdhci_send_command+0x8e4/0xc30 [sdhci]() [ 336.106637] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat mmc_block fuse xt_multiport xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media joydev arc4 brcmsmac nvidia(PO) cordic brcmutil mac80211 cfg80211 snd_hda_codec_hdmi rfkill r8169 mousedev ir_lirc_codec drm snd_hda_codec_realtek snd_hda_codec_generic lirc_dev snd_hda_intel snd_hda_controller evdev mac_hid snd_hda_codec snd_hda_core mii bcma ir_rc6_decoder ir_sanyo_decoder ir_nec_decoder jmb38x_ms i2c_core ir_sharp_decoder ir_mce_kbd_decoder [ 336.106637] ir_jvc_decoder ir_rc5_decoder ir_xmp_decoder ir_sony_decoder memstick rc_rc6_mce ene_ir rc_core coretemp crc32c_intel snd_hwdep psmouse snd_pcm snd_timer snd serio_raw toshiba_haps toshiba_bluetooth mei_me soundcore mei shpchp battery ac video button sch_fq_codel msr sparse_keymap loop kvm_intel kvm cpuid cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave acpi_cpufreq processor ip_tables x_tables ext4 crc16 mbcache jbd2 sr_mod cdrom sd_mod atkbd libps2 ahci libahci libata scsi_mod ehci_pci ehci_hcd sdhci_pci sdhci led_class usbcore mmc_core usb_common i8042 serio lz4 lz4_compress [ 336.106637] CPU: 2 PID: 0 Comm: swapper/2 Tainted: P W O 4.1.2-2-ARCH #1 [ 336.106637] Hardware name: TOSHIBA Satellite A660/NWQAA, BIOS 1.60 07/23/10 [ 336.106637] 0000000000000000 1c0fa02e044d6e83 ffff88023bc83d18 ffffffff81585c8e [ 336.106637] 0000000000000000 0000000000000000 ffff88023bc83d58 ffffffff81078c9a [ 336.106637] ffff880231cff4c0 ffff880231cff4c0 ffff88020fcf8290 ffff88020fcf8310 [ 336.106637] Call Trace: [ 336.106637] <IRQ> [<ffffffff81585c8e>] dump_stack+0x4c/0x6e [ 336.106637] [<ffffffff81078c9a>] warn_slowpath_common+0x8a/0xc0 [ 336.106637] [<ffffffff81078dca>] warn_slowpath_null+0x1a/0x20 [ 336.106637] [<ffffffffa004f0b4>] sdhci_send_command+0x8e4/0xc30 [sdhci] [ 336.106637] [<ffffffff810ec6f7>] ? ktime_get+0x37/0xb0 [ 336.106637] [<ffffffffa004fe3c>] sdhci_finish_command+0x15c/0x170 [sdhci] [ 336.106637] [<ffffffffa0050249>] sdhci_irq+0x329/0x990 [sdhci] [ 336.106637] [<ffffffff810e6359>] ? enqueue_hrtimer+0x29/0xa0 [ 336.106637] [<ffffffff810d4d9e>] handle_irq_event_percpu+0x3e/0x1f0 [ 336.106637] [<ffffffff810d4f91>] handle_irq_event+0x41/0x70 [ 336.106637] [<ffffffff810d8212>] handle_fasteoi_irq+0x82/0x130 [ 336.106637] [<ffffffff810181a2>] handle_irq+0x22/0x40 [ 336.106637] [<ffffffff8158e08f>] do_IRQ+0x4f/0xf0 [ 336.106637] [<ffffffff8158c0ae>] common_interrupt+0x6e/0x6e [ 336.106637] <EOI> [<ffffffff8143f40f>] ? cpuidle_enter_state+0x8f/0x240 [ 336.106637] [<ffffffff8143f3e4>] ? cpuidle_enter_state+0x64/0x240 [ 336.106637] [<ffffffff8143f5f7>] cpuidle_enter+0x17/0x20 [ 336.106637] [<ffffffff810bccac>] cpu_startup_entry+0x31c/0x450 [ 336.106637] [<ffffffff81050066>] start_secondary+0x196/0x1e0 [ 336.106637] ---[ end trace 9cf1bf48caa4616d ]--- swiotlb=131072 make it works a bit longer. just about 1Gb without such logs, but than return back to error state GRUB_CMDLINE_LINUX="resume=/dev/sda2 nomodeset notsc clocksource=acpi_pm nmi_watchdog=0 numa=off fastboot usbhid.mousepoll=2 init=/usr/lib/systemd/systemd enable_mtrr_cleanup intel_pstate=disable zswap.enabled=1 zswap.max_pool_percent=27 zswap.compressor=lz4 drm.vblankoffdelay=1 audit=0 pcie_aspm=powersave pcie_ports=native drm_kms_helper.poll=0 intel_iommu=on swiotlb=131072"
intel_iommu=off does not help, but switched to 3.14.48 lts and successfully tranfered all the data without any error
Can you test this on a newer kernel and see if you get the same results.
fixed with modprobe options jmb38x_ms no_dma=Y JMicron Technology Corp. MS Host Controller (rev 20) 197b:2383
Ok please, close this bug as invalid now.
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