Hi, thanks for the test, I will SRU this so people can get this fix from updates.
https://lists.ubuntu.com/archives/kernel-team/2019-August/103116.html ** Description changed: + == SRU Justification == + User report that the p54usb driver will crash when trying to load it on 5.0 kernel for a Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 adapter. This was caused by commit e3554197 (p54: Use skb_peek_tail() instead of direct head pointer accesses.) + + == Fix == + * 1645ab93 (p54: fix crash during initialization) + + This patch added a check for target_skb to determine where to queue the buffer. It can be cherry-picked into Disco. + Eoan got this patch from v5.2.1 upstream stable release update. + + == Test == + Test kernel could be found here: + https://people.canonical.com/~phlin/kernel/lp-1839693-p54usb/ + + This issue was reported against Bionic HWE 5.0 kernel, user confirmed + that the patched B-hwe kernel works as expected. + + == Regression Potential == + Low, change limited to p54usb driver, patch tested with positive test result. + + + == Original Bug Report == + I am using the Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter This relies on the p54usb driver. It works great on kernel 4.18. I upgraded to 5.0.0-3 and the device fails to start. On the older kernel, things seem good: [ 1255.546620] usb 3-1: new high-speed USB device number 3 using xhci_hcd [ 1255.704106] usb 3-1: New USB device found, idVendor=413c, idProduct=8104, bcdDevice=10.50 [ 1255.704110] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1255.704112] usb 3-1: Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter [ 1255.704115] usb 3-1: Manufacturer: DELL [ 1255.830808] usb 3-1: reset high-speed USB device number 3 using xhci_hcd [ 1255.979753] usb 3-1: Loading firmware file isl3887usb [ 1255.980055] ieee80211 phy1: p54 detected a LM87 firmware [ 1255.980058] p54: rx_mtu reduced from 3240 to 2384 [ 1255.980060] ieee80211 phy1: FW rev 2.13.25.0 - Softmac protocol 5.9 [ 1255.980063] ieee80211 phy1: cryptographic accelerator WEP:YES, TKIP:YES, CCMP:YES [ 1256.974586] ieee80211 phy1: hwaddr 00:14:a5:c6:56:ca, MAC:isl3892 RF:Xbow [ 1256.976368] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 1256.976974] usb 3-1: is registered as 'phy1' [ 1256.981866] p54usb 3-1:1.0 wlx0014a5c656ca: renamed from wlan0 I'm using: Description: Ubuntu 18.04.3 LTS Release: 18.04 ** Description changed: == SRU Justification == User report that the p54usb driver will crash when trying to load it on 5.0 kernel for a Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 adapter. This was caused by commit e3554197 (p54: Use skb_peek_tail() instead of direct head pointer accesses.) == Fix == * 1645ab93 (p54: fix crash during initialization) This patch added a check for target_skb to determine where to queue the buffer. It can be cherry-picked into Disco. Eoan got this patch from v5.2.1 upstream stable release update. == Test == Test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1839693-p54usb/ This issue was reported against Bionic HWE 5.0 kernel, user confirmed - that the patched B-hwe kernel works as expected. + that the patched B-hwe kernel can fix this issue. == Regression Potential == Low, change limited to p54usb driver, patch tested with positive test result. - == Original Bug Report == I am using the Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter This relies on the p54usb driver. It works great on kernel 4.18. I upgraded to 5.0.0-3 and the device fails to start. On the older kernel, things seem good: [ 1255.546620] usb 3-1: new high-speed USB device number 3 using xhci_hcd [ 1255.704106] usb 3-1: New USB device found, idVendor=413c, idProduct=8104, bcdDevice=10.50 [ 1255.704110] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1255.704112] usb 3-1: Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter [ 1255.704115] usb 3-1: Manufacturer: DELL [ 1255.830808] usb 3-1: reset high-speed USB device number 3 using xhci_hcd [ 1255.979753] usb 3-1: Loading firmware file isl3887usb [ 1255.980055] ieee80211 phy1: p54 detected a LM87 firmware [ 1255.980058] p54: rx_mtu reduced from 3240 to 2384 [ 1255.980060] ieee80211 phy1: FW rev 2.13.25.0 - Softmac protocol 5.9 [ 1255.980063] ieee80211 phy1: cryptographic accelerator WEP:YES, TKIP:YES, CCMP:YES [ 1256.974586] ieee80211 phy1: hwaddr 00:14:a5:c6:56:ca, MAC:isl3892 RF:Xbow [ 1256.976368] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 1256.976974] usb 3-1: is registered as 'phy1' [ 1256.981866] p54usb 3-1:1.0 wlx0014a5c656ca: renamed from wlan0 I'm using: Description: Ubuntu 18.04.3 LTS Release: 18.04 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1839693 Title: p54usb module in linux-modules-extra-5.0.0-23-generic does not work Status in linux package in Ubuntu: Fix Released Status in linux source package in Disco: In Progress Status in linux source package in Eoan: Fix Released Bug description: == SRU Justification == User report that the p54usb driver will crash when trying to load it on 5.0 kernel for a Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 adapter. This was caused by commit e3554197 (p54: Use skb_peek_tail() instead of direct head pointer accesses.) == Fix == * 1645ab93 (p54: fix crash during initialization) This patch added a check for target_skb to determine where to queue the buffer. It can be cherry-picked into Disco. Eoan got this patch from v5.2.1 upstream stable release update. == Test == Test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1839693-p54usb/ This issue was reported against Bionic HWE 5.0 kernel, user confirmed that the patched B-hwe kernel can fix this issue. == Regression Potential == Low, change limited to p54usb driver, patch tested with positive test result. == Original Bug Report == I am using the Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter This relies on the p54usb driver. It works great on kernel 4.18. I upgraded to 5.0.0-3 and the device fails to start. On the older kernel, things seem good: [ 1255.546620] usb 3-1: new high-speed USB device number 3 using xhci_hcd [ 1255.704106] usb 3-1: New USB device found, idVendor=413c, idProduct=8104, bcdDevice=10.50 [ 1255.704110] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1255.704112] usb 3-1: Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0 Adapter [ 1255.704115] usb 3-1: Manufacturer: DELL [ 1255.830808] usb 3-1: reset high-speed USB device number 3 using xhci_hcd [ 1255.979753] usb 3-1: Loading firmware file isl3887usb [ 1255.980055] ieee80211 phy1: p54 detected a LM87 firmware [ 1255.980058] p54: rx_mtu reduced from 3240 to 2384 [ 1255.980060] ieee80211 phy1: FW rev 2.13.25.0 - Softmac protocol 5.9 [ 1255.980063] ieee80211 phy1: cryptographic accelerator WEP:YES, TKIP:YES, CCMP:YES [ 1256.974586] ieee80211 phy1: hwaddr 00:14:a5:c6:56:ca, MAC:isl3892 RF:Xbow [ 1256.976368] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 1256.976974] usb 3-1: is registered as 'phy1' [ 1256.981866] p54usb 3-1:1.0 wlx0014a5c656ca: renamed from wlan0 I'm using: Description: Ubuntu 18.04.3 LTS Release: 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1839693/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
