Description of problem: In some cases, the output of udevadm info --export-db has an unexpected format. Version-Release number of selected component (if applicable): [mulhern@dhcp-25-209 ~]$ udevadm --version 222 How reproducible: Always, on my machine. Steps to Reproduce: 1. Update to f23 (this was not happening on f22). 2. Run udevadm info --export-db. 3. Expect that all entries will begin with an identifying letter followed by a colon, e.g., "E: MODALIAS=usb:v0458p0137d0100dc00dsc00dp00ic03isc01ip02in00 ". 4. Notice that some entries do not have this format, e.g., "MODALIAS=hid:b0003g0001v00000458p00000137". 5. Notice that there seems to be something wrong with the preceding entry in this case, e.g., """ E: HID_UNIQ= MODALIAS=hid:b0003g0001v00000458p00000137 """ Actual results: Funky formatting for some entries in output of udevadm info --export-db. Expected results: No funky formatting. Additional info: Occurs with particular devices: E: HID_UNIQ= MODALIAS=hid:b0003g0001v00000458p00000137 E: MEI_CL_NAME= MODALIAS=mei::12f80028-b4b7-4b2d-aca8-46e0ff65814c:01: but not w/ any others that I have observed on my machine. Looks like the problem originates in the database entry as libudev, via pyudev, think that the value of HID_UNIQ is "u'\nMODALIAS=hid:b0003g0001v00000458p00000137'", which has to be wrong. So, that's where to fix it. """ [mulhern@dhcp-25-209 pyudev]$ udevadm info /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/0003:0458:0137.0001 P: /devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/0003:0458:0137.0001 E: DEVPATH=/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/0003:0458:0137.0001 E: DRIVER=hid-generic E: HID_ID=0003:00000458:00000137 E: HID_NAME=PixArt USB Optical Mouse E: HID_PHYS=usb-0000:00:14.0-4/input0 E: HID_UNIQ= MODALIAS=hid:b0003g0001v00000458p00000137 E: SUBSYSTEM=hid """
Odd fact: libudev (pyudev) doesn't seem to be able to obtain a value for MODALIAS (makes sense, pudev directly calls the udev get_property method) , but udevadm sort of can: [mulhern@dhcp-25-209 udev]$ udevadm info --root --path /sys/devices/pci0000:00/0000:00:16.0/mei::12f80028-b4b7-4b2d-aca8-46e0ff65814c:01 --query property DEVPATH=/devices/pci0000:00/0000:00:16.0/mei::12f80028-b4b7-4b2d-aca8-46e0ff65814c:01 MEI_CL_NAME= MODALIAS=mei::12f80028-b4b7-4b2d-aca8-46e0ff65814c:01: MEI_CL_UUID=12f80028-b4b7-4b2d-aca8-46e0ff65814c MEI_CL_VERSION=1 SUBSYSTEM=mei Also, and I'm not sure if this is correct or not, sometimes MODALIAS looks surprising: P: /devices/system/cpu/cpu7 E: DEVPATH=/devices/system/cpu/cpu7 E: DRIVER=processor E: MODALIAS=cpu:type:x86,ven0000fam0006mod003A:feature:,0000,0001,0002,0003,0004 ,0005,0006,0007,0008,0009,000B,000C,000D,000E,000F,0010,0011,0013,0015,0016,0017 ,0018,0019,001A,001B,001C,001D,001F,002B,0034,003B,003D,0068,006B,006C,006D,006F ,0070,0072,0074,0075,0076,0078,007C,007D,0080,0081,0082,0083,0084,0085,0086,0087 ,0088,0089,008D,008E,008F,0091,0093,0094,0095,0097,0098,0099,009A,009B,009C,009D ,009E,00C0,00E0,00E1,00E3,00E5,00E6,00E7,0100,0101,0102,0103,0104,0120,0127,0129 ,0140 E: SUBSYSTEM=cpu
It's some sort of db corruption, I'm looking into it: #0 device_add_property_aux (device=0x555555688be0, _key=0x55555568c123 "HID_UNIQ", _value=0x55555568c12c "\nMODALIAS=hid:b0003g0001v00000C76p00001607", db=false) at src/libsystemd/sd-device/sd-device.c:102 #1 0x00005555555e6ed9 in device_add_property_internal (device=0x555555688be0, key=0x55555568c123 "HID_UNIQ", value=0x55555568c12c "\nMODALIAS=hid:b0003g0001v00000C76p00001607") at src/libsystemd/sd-device/sd-device.c:149
Thanks for the report. This fixes it for me: https://github.com/systemd/systemd/pull/3330
systemd-229-8.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-5f8a34340d
systemd-229-8.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-5f8a34340d
systemd-229-8.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Reopening for F23.
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This seems to be fixed in F24.
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.