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--- linux:ubuntu:troubleshooting [2017/06/01 16:44] – lunetikk
+++ linux:ubuntu:troubleshooting [2025/01/26 22:50] (current) – lunetikk
@@ Line 65: / Line 65: @@
 cd /var/bla
 for i in * ; do rm $i ; done
+</code>
+if too many
+<code>
+mkdir empty_dir
+rsync -a --delete empty_dir/ yourdirectory/
 </code>
@@ Line 70: / Line 76: @@
 In my case 296093 files in "/var/spool/icinga2/perfdata/"
+===== USB devices are dead =====
+==== Errormessage ====
+dmesg shows some like this
+<code>
+[48339.446016] xhci_hcd 0000:04:00.3: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0011 address=0xfe0a1000 flags=0x0000]
+[48374.915331] xhci_hcd 0000:04:00.3: xHCI host not responding to stop endpoint command
+[48374.915341] xhci_hcd 0000:04:00.3: xHCI host controller not responding, assume dead
+[48374.915367] xhci_hcd 0000:04:00.3: HC died; cleaning up
+[48374.915404] usb 1-1: USB disconnect, device number 2
+[48374.915407] usb 1-1.5: USB disconnect, device number 5
+[48374.915940] usb 2-1: USB disconnect, device number 2
+[48374.915945] usb 2-1.3: USB disconnect, device number 3
+[48374.916232] usb 1-2: USB disconnect, device number 3
+</code>
+==== Solution ====
+Reboot your system or restart xhci_hcd
+<code>
+#insert your device after echo -n
+echo -n "0000:00:14.0" | tee /sys/bus/pci/drivers/xhci_hcd/unbind
+sleep 5
+echo -n "0000:00:14.0" | tee /sys/bus/pci/drivers/xhci_hcd/bind
+</code>
+==== Cause ====
+I wish I knew...

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