I just tried RELENG_5 as of last week and the latest (April 13) ATA
mkIII patches from http://people.freebsd.org/~sos/ATA/ on my laptop.
Unfortunately, it breaks suspend-to-RAM (S3).
History:
I first tried RELENG_5 on the laptop (a Toshiba Tecra M2V) in January
and suspend did not work (the laptop hung after reinitializing the ATA
controller). Then I tried the first release of ATA mkIII. That first
version of the new ATA code made suspend work, and I was happy.
Last week, I tried upgrading to the latest RELENG_5 and the newest ATA
mkIII code, and now after suspending the kernel panics when reiniting
the ATA device(s) in ata-all.c:ata_reinit(), about line 217:
/* reinit the children and delete any that fails */
if (!device_get_children(dev, &children, &nchildren)) {
mtx_lock(&Giant); /* newbus suckage it needs Giant */
for (i = 0; i < nchildren; i++) {
if (children[i] && device_is_attached(children[i]))
if (ATA_REINIT(children[i])) {
if (ch->running->dev == children[i]) {
^^^^^^^^^^^^^^^^
device_printf(ch->running->dev,
"FAILURE - device detached\n");
ch->running->dev = NULL;
ch->running = NULL;
}
device_delete_child(dev, children[i]);
}
}
free(children, M_TEMP);
mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
}
The problem is that ch->running is NULL at this point.
Any suggestions on how to further debug or fix?
thanks,
andrew
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