> hi,
>
> playing with 7.5 on an edgerouter poe, it panics at boot:
Congratulations, you've reached a divide by zero in the kernel.
This is caused by cn30xxgmx_rgmii_speed() setting the local variable
`baudrate' to zero (with an XXX comment) prior to dividing by it.
The following diff sweeps the issue under the rug by following the
"consider unknown value as 1Gbps" logic used all over the file. It might
help your setup.
Index: dev/cn30xxgmx.c
===================================================================
RCS file: /OpenBSD/src/sys/arch/octeon/dev/cn30xxgmx.c,v
retrieving revision 1.54
diff -u -p -r1.54 cn30xxgmx.c
--- dev/cn30xxgmx.c 20 May 2024 23:13:33 -0000 1.54
+++ dev/cn30xxgmx.c 2 Jul 2024 19:49:45 -0000
@@ -991,7 +991,8 @@ cn30xxgmx_rgmii_speed(struct cn30xxgmx_p
baudrate = IF_Gbps(1);
break;
default:
- baudrate = 0/* XXX */;
+ /* Assume 1Gbps for now*/
+ baudrate = IF_Gbps(1); /* XXX */
break;
}
ifp->if_baudrate = baudrate;
@@ -1202,7 +1203,7 @@ cn30xxgmx_rgmii_speed_speed(struct cn30x
SET(prt_cfg, PRTN_CFG_SPEED);
break;
default:
- /* NOT REACHED! */
+ /* THEORETICALLY NOT REACHED! */
/* Following configuration is default value of system.
*/
tx_clk = 1;
