Unfortunately I cannot test this anymore as I had to switch that machine to Debian Squeeze, which already contained this fix (among others).
Apparently, although with this fix the card is correctly initialised ("pri show spans" in the Asterisk console shows "PRI span 1/0: Provisioned, Up, Active"), it exhibits severe instability after a while (loses interrupts, etc.) leading me to believe other parts of DAHDI needed patching as well.
By all means though, do prepare an SRU, it may work on hardware configurations other than mine.
Unfortunately I cannot test this anymore as I had to switch that machine to Debian Squeeze, which already contained this fix (among others).
Apparently, although with this fix the card is correctly initialised ("pri show spans" in the Asterisk console shows "PRI span 1/0: Provisioned, Up, Active"), it exhibits severe instability after a while (loses interrupts, etc.) leading me to believe other parts of DAHDI needed patching as well.
By all means though, do prepare an SRU, it may work on hardware configurations other than mine.