a regression (well I switched to slub) happens on boot...
...
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1d.3 to 64
uhci_hcd 0000:00:1d.3: UHCI Host Controller
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
uhci_hcd 0000:00:1d.3: irq 16, io base 0x00004040
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
usb 1-4: new high speed USB device using ehci_hcd and address 3
BUG: at include/linux/slub_def.h:77 kmalloc_index()
[<c0176448>] get_slab+0x1c8/0x250
[<c02f18f4>] usb_get_configuration+0x854/0xfa0
[<c01778ec>] __kmalloc_track_caller+0x1c/0x80
[<c0162e2a>] __kzalloc+0x1a/0x50
[<c02f18f4>] usb_get_configuration+0x854/0xfa0
[<c02ee560>] usb_start_wait_urb+0x70/0xb0
[<c02e9250>] hub_port_init+0x90/0x5f0
[<c02ea2e4>] usb_new_device+0x14/0x100
[<c02eae2b>] hub_thread+0x5ab/0xc30
[<c013f710>] autoremove_wake_function+0x0/0x50
[<c02ea880>] hub_thread+0x0/0xc30
[<c013f432>] kthread+0x42/0x70
[<c013f3f0>] kthread+0x0/0x70
[<c0104df3>] kernel_thread_helper+0x7/0x14
=======================
usb 1-4: configuration #1 chosen from 1 choice
usb 2-2: new full speed USB device using uhci_hcd and address 2
usb 2-2: configuration #1 chosen from 1 choice
usb 4-2: new full speed USB device using uhci_hcd and address 2
...
--
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the real world around you, but you're still dreaming.
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