Hi, using the latest kernel from https://git.kernel.org/cgit/linux/kernel/git/balbi/usb.git/ with a USB3380 I get a kernel lockup after setting up an emulated drive and start using it. In order to reproduce: dd if=/dev/zero of=<somefile> bs=64k count=102400 modprobe net2280 modprobe g_mass_storage file=<somefile> I then connect the cable to my Mac, quick format the drive (this works), mount the drive (works as well) and then do write a large file: dd if=/dev/zero of=<mountpoint>/file bs=64k count=10240 I then almost immediately get: [ 115.886330] ------------[ cut here ]------------ [ 115.886335] WARNING: CPU: 3 PID: 0 at kernel/watchdog.c:267 watchdog_overflow_callback+0x9c/0xd0() [ 115.886336] Watchdog detected hard LOCKUP on cpu 3 [ 115.886336] Modules linked in: g_mass_storage net2280 usb_f_mass_storage libcomposite udc_core configfs snd_hda_codec_hdmi i915 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hwdep snd_pcm joydev snd_seq_midi hid_generic crct10dif_pclmul snd_seq_midi_event crc32_pclmul snd_rawmidi ghash_clmulni_intel eeepc_wmi asus_wmi sparse_keymap aesni_intel drm_kms_helper snd_seq drm usbhid hid snd_seq_device aes_x86_64 lrw gf128mul glue_helper snd_timer ablk_helper cryptd snd mei_me mei serio_raw soundcore lpc_ich i2c_algo_bit wmi video mac_hid tpm_infineon rfcomm bnep bluetooth parport_pc ppdev lp parport e1000e psmouse r8169 ptp ahci libahci pps_core mii [ 115.886361] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.17.0-rc5+ #2 [ 115.886362] Hardware name: ASUS All Series/Q87T, BIOS 0215 09/06/2013 [ 115.886363] 0000000000000009 ffff88041fb86c10 ffffffff81746707 ffff88041fb86c58 [ 115.886364] ffff88041fb86c48 ffffffff8106c93d ffff8804097fc000 0000000000000000 [ 115.886365] ffff88041fb86d70 0000000000000000 ffff88041fb86ef8 ffff88041fb86ca8 [ 115.886367] Call Trace: [ 115.886368] <NMI> [<ffffffff81746707>] dump_stack+0x45/0x56 [ 115.886373] [<ffffffff8106c93d>] warn_slowpath_common+0x7d/0xa0 [ 115.886374] [<ffffffff8106c9ac>] warn_slowpath_fmt+0x4c/0x50 [ 115.886376] [<ffffffff8111a23c>] watchdog_overflow_callback+0x9c/0xd0 [ 115.886379] [<ffffffff811579ed>] __perf_event_overflow+0x8d/0x230 [ 115.886381] [<ffffffff81029db8>] ? x86_perf_event_set_period+0xe8/0x150 [ 115.886383] [<ffffffff81158454>] perf_event_overflow+0x14/0x20 [ 115.886385] [<ffffffff8103136d>] intel_pmu_handle_irq+0x1ed/0x3e0 [ 115.886386] [<ffffffff81028abb>] perf_event_nmi_handler+0x2b/0x50 [ 115.886388] [<ffffffff81016fd8>] nmi_handle+0x88/0x120 [ 115.886389] [<ffffffff810175de>] default_do_nmi+0xde/0x140 [ 115.886390] [<ffffffff810176c8>] do_nmi+0x88/0xc0 [ 115.886392] [<ffffffff81751171>] end_repeat_nmi+0x1e/0x2e [ 115.886394] [<ffffffff8138099a>] ? delay_tsc+0x3a/0x80 [ 115.886395] [<ffffffff8138099a>] ? delay_tsc+0x3a/0x80 [ 115.886396] [<ffffffff8138099a>] ? delay_tsc+0x3a/0x80 [ 115.886397] <<EOE>> <IRQ> [<ffffffff813808dc>] __const_udelay+0x2c/0x30 [ 115.886400] [<ffffffffa054be3a>] net2280_irq+0x76a/0x15a8 [net2280] [ 115.886402] [<ffffffff8148df1c>] ? add_interrupt_randomness+0x3c/0x1f0 [ 115.886405] [<ffffffff810c090e>] handle_irq_event_percpu+0x3e/0x1a0 [ 115.886407] [<ffffffff810c0aad>] handle_irq_event+0x3d/0x60 [ 115.886408] [<ffffffff810c3657>] handle_edge_irq+0x77/0x130 [ 115.886410] [<ffffffff810154ee>] handle_irq+0x1e/0x30 [ 115.886411] [<ffffffff81751b6f>] do_IRQ+0x4f/0xf0 [ 115.886412] [<ffffffff8174f9ed>] common_interrupt+0x6d/0x6d [ 115.886413] <EOI> [<ffffffff815f4490>] ? cpuidle_enter_state+0x70/0x170 [ 115.886416] [<ffffffff815f4647>] cpuidle_enter+0x17/0x20 [ 115.886417] [<ffffffff810aad9d>] cpu_startup_entry+0x31d/0x340 [ 115.886419] [<ffffffff810dde88>] ? clockevents_config_and_register+0x28/0x30 [ 115.886421] [<ffffffff81045237>] start_secondary+0x1a7/0x250 [ 115.886422] ---[ end trace e31adb6e2f340f5d ]— Output from lspci: 00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06) 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) 00:16.3 Serial controller: Intel Corporation 8 Series/C220 Series Chipset Family KT Controller (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 05) 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) 00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5) 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation Q87 Express LPC Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) 01:00.0 USB controller: PLX Technology, Inc. Device 3380 (rev ab) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) Perhaps I have something incorrectly configured in the kernel so I’ve attached my kernel.config for reference. The machine seems to be running fine on that kernel for the rest. Let me know if I can do any other tests to help figure out the problem. Paul.
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kernel.config
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