I saw this on console using the RNDIS module and OTG host mode after probably less than 15 minutes of use. This is using a custom build from PSP-04.02.00.07. Please let me know whether this is related to existing known issues and if is any additional information I can provide which would be useful. I saw that there are some known issues which might be related, such as SDOCM00034419, but didn't see any further details.
root@am3517-evm:/home/test# ifdown usb1
[ 917.690582] irq 71: nobody cared (try booting with the "irqpoll" option)
[ 917.697692] [<c004dd9c>] (unwind_backtrace+0x0/0xec) from [<c00b9a28>] (__report_bad_irq+0x30/0x8c)
[ 917.707214] [<c00b9a28>] (__report_bad_irq+0x30/0x8c) from [<c00b9bd0>] (note_interrupt+0x14c/0x1dc)
[ 917.716827] [<c00b9bd0>] (note_interrupt+0x14c/0x1dc) from [<c00ba938>] (handle_level_irq+0xe4/0x148)
[ 917.726531] [<c00ba938>] (handle_level_irq+0xe4/0x148) from [<c003d078>] (asm_do_IRQ+0x78/0xa0)
[ 917.735687] [<c003d078>] (asm_do_IRQ+0x78/0xa0) from [<c043198c>] (__irq_svc+0x4c/0xb4)
[ 917.744079] Exception stack(0xcc1adcf8 to 0xcc1add40)
[ 917.749389] dce0: 00000001 0000005f
[ 917.757995] dd00: 00000004 0000098d 00000000 cc1ac000 00000000 00000002 00000001 0000000a
[ 917.766571] dd20: 00000202 00008914 cc1add78 cc1add40 c00a52c4 c007c088 60000113 ffffffff
[ 917.775177] [<c043198c>] (__irq_svc+0x4c/0xb4) from [<c007c088>] (__do_softirq+0x64/0x250)
[ 917.783874] [<c007c088>] (__do_softirq+0x64/0x250) from [<c007c2c4>] (irq_exit+0x50/0xa0)
[ 917.792480] [<c007c2c4>] (irq_exit+0x50/0xa0) from [<c003d07c>] (asm_do_IRQ+0x7c/0xa0)
[ 917.800811] [<c003d07c>] (asm_do_IRQ+0x7c/0xa0) from [<c043198c>] (__irq_svc+0x4c/0xb4)
[ 917.809204] Exception stack(0xcc1add90 to 0xcc1addd8)
[ 917.814514] dd80: 00000001 0000005f 00000040 0000098a
[ 917.823089] dda0: cec48e44 60000013 cec48e38 cec48e44 60000013 cc1ac000 cec48d20 00008914
[ 917.831695] ddc0: cc1addc0 cc1addd8 c00a52c4 c0431490 20000013 ffffffff
[ 917.838653] [<c043198c>] (__irq_svc+0x4c/0xb4) from [<c0431490>] (_raw_spin_unlock_irqrestore+0x44/0x74)
[ 917.848632] [<c0431490>] (_raw_spin_unlock_irqrestore+0x44/0x74) from [<bf0151d8>] (unlink_urbs+0x58/0x60 [usbnet])
[ 917.859771] [<bf0151d8>] (unlink_urbs+0x58/0x60 [usbnet]) from [<bf0152a4>] (usbnet_terminate_urbs+0xc4/0x138 [usbnet])
[ 917.871124] [<bf0152a4>] (usbnet_terminate_urbs+0xc4/0x138 [usbnet]) from [<bf016338>] (usbnet_stop+0xc8/0x14c [usbnet])
[ 917.882568] [<bf016338>] (usbnet_stop+0xc8/0x14c [usbnet]) from [<c038a078>] (__dev_close+0x84/0xa4)
[ 917.892181] [<c038a078>] (__dev_close+0x84/0xa4) from [<c0387a3c>] (__dev_change_flags+0xac/0x134)
[ 917.901611] [<c0387a3c>] (__dev_change_flags+0xac/0x134) from [<c0389ec8>] (dev_change_flags+0x10/0x44)
[ 917.911468] [<c0389ec8>] (dev_change_flags+0x10/0x44) from [<c03d349c>] (devinet_ioctl+0x2dc/0x5f8)
[ 917.920989] [<c03d349c>] (devinet_ioctl+0x2dc/0x5f8) from [<c0376a78>] (sock_ioctl+0x208/0x260)
[ 917.930145] [<c0376a78>] (sock_ioctl+0x208/0x260) from [<c011c630>] (do_vfs_ioctl+0x28c/0x2cc)
[ 917.939208] [<c011c630>] (do_vfs_ioctl+0x28c/0x2cc) from [<c011c6c0>] (sys_ioctl+0x50/0x74)
[ 917.947998] [<c011c6c0>] (sys_ioctl+0x50/0x74) from [<c0047da0>] (ret_fast_syscall+0x0/0x3c)
[ 917.956848] handlers:
[ 917.959228] [<c02ef2bc>] (am35x_musb_interrupt+0x0/0x340)
[ 917.964935] Disabling IRQ #71