T1 not working after 10.13.66-8 update

General Help
1

My T1 stopped functioning after I installed the 10.13.66-8 update this morning. I am seeing the following log messages:

[2016-02-10 12:28:05] WARNING[6086] chan_dahdi.c: Unable to specify channel 1: No such device or address
[2016-02-10 12:28:05] ERROR[6086] chan_dahdi.c: Unable to open channel 1: No such device or address
[2016-02-10 12:28:05] ERROR[6086] chan_dahdi.c: Unable to register channel ‘1-5’
[2016-02-10 12:28:05] WARNING[6086] chan_dahdi.c: Channel ‘1-5’ failure ignored: ignore_failed_channels.

From demise I can see that the T1 card loaded successfully:

dmesg | grep wcte13
wcte13xp 0000:04:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
wcte13xp 0000:04:00.0: setting latency timer to 64
wcte13xp 0000:04:00.0: irq 36 for MSI/MSI-X
wcte13xp 0000:04:00.0: Firmware version: 7a001e
wcte13xp 0000:04:00.0: FALC version: 5
wcte13xp 0000:04:00.0: Setting up global serial parameters for T1
wcte13xp 0000:04:00.0: firmware: requesting dahdi-fw-oct6114-032.bin
wcte13xp 0000:04:00.0: Echo cancellation for 32 channels
wcte13xp 0000:04:00.0: Reset octasic
wcte13xp 0000:04:00.0: VPM450: Present and operational servicing 1 span
wcte13xp 0000:04:00.0: Found a Wildcard TE131/TE133 (SN: 1TE133F - DF04141258507 - B1 - 20140325)

Nothing has changed other than the update. Any suggestions?

2

Just for closure, I found the issue. Somehow in the upgrade the mod probe settings for wcte13xp module were lost. I added default_linemode = t1 to the Modprobe Settings under Dahdi Config in Freepbx and rebooted the server. All is well again.