pcmcia oopses

pcmcia oopses

[iwillallways forget1]

Here are two oopses from kernel 4.0.4, 32 bits, on a PC with a pcmcia
slot that can handle both cardbux and 16-bit pcmcia cards.
As mentioned in my other thread, I commented out udev's call to
pcmcia-socket-startup so booting completes.

This first one occurs intermittently during boot before udev starts.
It is non-fatal and I can even use a pcmcia device.

[    7.900418] ------------[ cut here ]------------
[    7.906355] WARNING: CPU: 0 PID: 979 at kernel/sched/core.c:7302
__might_sleep+0x66/0x82()
[    7.912393] do not call blocking ops when !TASK_RUNNING; state=1
set at [<c13de002>] pccardd+0xce/0x313
[    7.918479] usb usb3: SerialNumber: 0000:00:1a.0
[    7.924591] Modules linked in:
[    7.930622] hub 3-0:1.0: USB hub found
[    7.936383] CPU: 0 PID: 979 Comm: pccardd Not tainted 4.0.4-xxxxxxxxxxxx #1
[    7.942209] Hardware name: NEC PC-VY20MFD5RJX6/AK3ML, BIOS NOTE
BIOS Version /554A0800      10/31/2008
[    7.948217]  00000000 00000000 f4167ea4 c152c76a f4167ee4 f4167ed4
c103598d c17ab6bc
[    7.954333]  f4167f00 000003d3 c17ab587 00001c86 c104e13e c104e13e
c13de002 00000001
[    7.960462]  00000000 f4167eec c10359d2 00000009 f4167ee4 c17ab6bc
f4167f00 f4167f20
[    7.966596] Call Trace:
[    7.972620]  [<c152c76a>] dump_stack+0x49/0x73
[    7.978687]  [<c103598d>] warn_slowpath_common+0x98/0xaf
[    7.984760]  [<c104e13e>] ? __might_sleep+0x66/0x82
[    7.990843]  [<c104e13e>] ? __might_sleep+0x66/0x82
[    7.996874]  [<c13de002>] ? pccardd+0xce/0x313
[    8.002815]  [<c10359d2>] warn_slowpath_fmt+0x2e/0x30
[    8.008752]  [<c104e13e>] __might_sleep+0x66/0x82
[    8.014631]  [<c13de002>] ? pccardd+0xce/0x313
[    8.020461]  [<c13de002>] ? pccardd+0xce/0x313
[    8.026190]  [<c152f8a7>] mutex_lock+0x17/0x2f
[    8.031906]  [<c13de06e>] pccardd+0x13a/0x313
[    8.037645]  [<c152f1d5>] ? preempt_schedule+0x1f/0x21
[    8.043388]  [<c12a3378>] ? ___preempt_schedule+0x8/0xc
[    8.049121]  [<c13ddf34>] ? socket_complete_resume+0x2e/0x2e
[    8.054850]  [<c13ddf34>] ? socket_complete_resume+0x2e/0x2e
[    8.060528]  [<c104928d>] kthread+0x8c/0x91
[    8.066266]  [<c1531681>] ret_from_kernel_thread+0x21/0x30
[    8.071978]  [<c1049201>] ? __kthread_parkme+0x6e/0x6e
[    8.077663] hub 3-0:1.0: 2 ports detected
[    8.083527] uhci_hcd 0000:00:1a.1: UHCI Host Controller
[    8.089150] uhci_hcd 0000:00:1a.1: new USB bus registered, assigned
bus number 4
[    8.094822] uhci_hcd 0000:00:1a.1: detected 2 ports
[    8.100476] uhci_hcd 0000:00:1a.1: irq 21, io base 0x00001860
[    8.106204] usb usb4: New USB device found, idVendor\x1d6b, idProduct\001
[    8.111938] usb usb4: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    8.117672] usb usb4: Product: UHCI Host Controller
[    8.123353] usb usb4: Manufacturer: Linux 4.0.4-xxxxxxxxxxxx uhci_hcd
[    8.129331] usb usb4: SerialNumber: 0000:00:1a.1
[    8.135174] hub 4-0:1.0: USB hub found
[    8.140799] hub 4-0:1.0: 2 ports detected
[    8.146632] uhci_hcd 0000:00:1a.2: UHCI Host Controller
[    8.152280] uhci_hcd 0000:00:1a.2: new USB bus registered, assigned
bus number 5
[    8.157945] uhci_hcd 0000:00:1a.2: detected 2 ports
[    8.163558] uhci_hcd 0000:00:1a.2: irq 19, io base 0x00001880
[    8.169172] usb usb5: New USB device found, idVendor\x1d6b, idProduct\001
[    8.174784] usb usb5: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    8.180377] usb 2-2: new high-speed USB device number 2 using ehci-pci
[    8.185970] usb usb5: Product: UHCI Host Controller
[    8.191420] usb usb5: Manufacturer: Linux 4.0.4-xxxxxxxxxxxx uhci_hcd
[    8.196775] usb usb5: SerialNumber: 0000:00:1a.2
[    8.202294] hub 5-0:1.0: USB hub found
[    8.207640] hub 5-0:1.0: 2 ports detected
[    8.213132] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[    8.218301] ---[ end trace 711724ffae446cbc ]---

The second one is also intermittent and is fatal.
The oops scrolled off the screen before two keyboard lights started flashing.
I think the driver was Qlogicfas.
I inserted a 16-bit pcmcia SCSI adapter, attached to a vintager CD-ROM drive.
The kernel recognized the drive.
I inserted a CD-R that was burned during this millennium and I guess the drive
couldn't read it, and a driver probably Qlogicfas couldn't handle the
error report.
Sorry, I only saw it once and didn't want to spend half an hour writing down the
tail end of the oops report.

Re: pcmcia oopses

[Greg KH]

On Mon, Apr 04, 2016 at 12:30:52PM +0900, iwillallways forget1 wrote:
> Here are two oopses from kernel 4.0.4, 32 bits, on a PC with a pcmcia
> slot that can handle both cardbux and 16-bit pcmcia cards.
> As mentioned in my other thread, I commented out udev's call to
> pcmcia-socket-startup so booting completes.

Try sending this to the pcmcia maintainer and mailing list, as found in
the kernel MAINTAINERS file.  They are the ones that can help you out
the best here, not the hotplug list.

thanks,

greg k-h