https://bugzilla.kernel.org/show_bug.cgi?id=218490 Bug ID: 218490 Summary: Linux warning `usb: port power management may be unreliable` on Dell PowerEdge T440 Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: pmenzel+bugzilla.kernel.org@xxxxxxxxxxxxx Regression: No Created attachment 305865 --> https://bugzilla.kernel.org/attachment.cgi?id=305865&action=edit Linux 5.15.112 messages (output of `dmesg`) with system firmware 2.12.1 On the Dell PowerEdge T440 with at least system firmware version , Linux warns: $ dmesg | grep "may be unreliable" [ 12.130289] usb: port power management may be unreliable $ dmesg | grep -e "DMI:" -e "Linux version" -e microcode [ 0.000000] Linux version 5.15.112.mx64.449 (root@xxxxxxxxxxxxxxxxxxxxxxxxx) (gcc (GCC) 10.4.0, GNU ld (GNU Binutils) 2.40) #1 SMP Tue May 23 12:51:43 CEST 2023 [ 0.000000] DMI: Dell Inc. PowerEdge T440/021KCD, BIOS 2.12.2 07/09/2021 [ 2.185611] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 12.269955] microcode: sig=0x50657, pf=0x80, revision=0x5003103 [ 12.276243] microcode: Microcode Update Driver: v2.2. $ usb-devices T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=16 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev=05.15 S: Manufacturer=Linux 5.15.112.mx64.449 xhci-hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:14.0 C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=01 Prnt=01 Port=13 Cnt=01 Dev#= 2 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1604 ProdID=10c0 Rev=00.00 C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1604 ProdID=10c0 Rev=00.00 C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=02 Dev#= 4 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1604 ProdID=10c0 Rev=00.00 C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh=10 D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 P: Vendor=1d6b ProdID=0003 Rev=05.15 S: Manufacturer=Linux 5.15.112.mx64.449 xhci-hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:14.0 C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
