Date: Tue, 3 May 2005 11:47:32 -0400 From: Andrew Heybey <ath@niksun.com> To: freebsd-stable@freebsd.org Cc: sos@freebsd.org Subject: ATA mkIII suspend problem Message-ID: <20050503114732.65bce180@stiegl.mj.niksun.com>
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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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