On Sun, 2024-12-29 at 19:08 -0800, Pradeep Gopanapalli wrote: > Hello, > I am trying to establish multiple 5G multiplex slices on a Telit > FN990 modem running in QMI mode. These 5G slices represent multiple > PDNs managed by ModemManager (via mmcli). > > When using the "--test-multiplex-requested" option, the bearer setup > fails with the following Netlink error: > GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dio_2derror_2dquar > k.Code0: failed to create net link for device: failed to add link for > device: Could not allocate link: Failed to add link with mux id 1: > Netlink message with transaction 9 failed
Unfortunately libqmi-glib doesn't print out the actual error we get from netlink, which I've fixed here: https://gitlab.freedesktop.org/mobile-broadband/libqmi/-/merge_requests/389 would you be able to apply that patch locally and reproduce the issue, so that we can figure out the actual error code netlink is returning? Thanks, Dan > > Environment: > * Modem: Telit FN990A28 in QMI mode > * ModemManager: 1.22.0 > * libqmi: 1.34.0-2 > * libmbim: 1.30.0-2 > * Kernel: 5.15.150 > * OpenWrt: Based on 22.03 using netifd > Debug Logs During Bearer Connection: > (PFA message_modem_debug) > 2024-12-28T00:38:03.709 DEBUG daemon ModemManager[9676]: > [1735346283.709521] [modem0/bearer1] connecting... > 2024-12-28T00:38:03.709 NOTICE daemon ModemManager[9676]: > [1735346283.709796] [modem0] state changed (registered -> connecting) > 2024-12-28T00:38:03.709 DEBUG daemon ModemManager[9676]: > [1735346283.709904] [modem0/bearer1] launching connection with QMI > port (cdc-wdm0) and data port (wwan0) (multiplex requested) > 2024-12-28T00:38:03.709 DEBUG daemon ModemManager[9676]: > [1735346283.709916] [cdc-wdm0/qmi] bringing down data interface > 'wwan0' > 2024-12-28T00:38:03.710 DEBUG daemon ModemManager[9676]: > [1735346283.710309] [cdc-wdm0/qmi] resetting expected kernel data > format to 802.3 in data interface 'wwan0' > 2024-12-28T00:38:03.897 WARN daemon ModemManager[9676]: > [1735346283.897197] [modem0/bearer1] connection attempt #1 failed: > failed to create net link for device: failed to add link for device: > Could not allocate link: Failed to add link with mux id 1: Netlink > message with transaction 1 failed > 2024-12-28T00:38:03.898 NOTICE daemon netifd: CELL1 (19170): error: > couldn't connect the modem: > 'GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dio_2derror_2dqua > rk.Code0: failed to create net link for device: failed to add link > for device: Could not allocate link: Failed to add link with mux id > 1: Netlink message with transaction 1 failed' > Similar Issue Reported: > This issue has been reported in the following GitLab issue: > GitLab ModemManager Issue #533, but I have not seen a resolution for > it. > Reference Links: > * ModemManager Mailing List - March 2022 > Any assistance or suggestions on resolving this issue would be > greatly appreciated. > Thanks, > Pradeep G > > > This electronic communication and the information and any files > transmitted with it, or attached to it, are confidential and are > intended solely for the use of the individual or entity to whom it is > addressed and may contain information that is confidential, legally > privileged, protected by privacy laws, or otherwise restricted from > disclosure to anyone else. If you are not the intended recipient or > the person responsible for delivering the e-mail to the intended > recipient, you are hereby notified that any use, copying, > distributing, dissemination, forwarding, printing, or copying of this > e-mail is strictly prohibited. If you received this e-mail in error, > please return the e-mail to the sender, delete it from your computer, > and destroy any printed copy of it.
