<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTOURBUG - random freeze at boot with kernel 3.17.x" href="https://bugs.freedesktop.org/show_bug.cgi?id=85782#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTOURBUG - random freeze at boot with kernel 3.17.x" href="https://bugs.freedesktop.org/show_bug.cgi?id=85782">bug 85782</a> from <a class="email" href="mailto:mister.freeman@laposte.net" title="Barto <mister.freeman@laposte.net>"> Barto</a> <pre>yes it's a kernel problem, I'm sure now because after investigations I found the guilty, it's the commit 74665016086615bbaa3fa6f83af410a0a4e029ee "( scsi: convert host_busy to atomic_t )" who has introduced the bug, the bug is triggered if a slow sata/ide device ( like a DVD burner ) is mixed with a sata/ide hardisk AND if the motherboard or the sata/ide controler doesn't support AHCI, a random hang will occur every 5~10 boots, systemd will stop and some error messages will be displayed because sata/ide devices suddenly stop : <a href="https://lkml.org/lkml/2014/11/19/634">https://lkml.org/lkml/2014/11/19/634</a> a patch is available : <a href="https://bugzilla.kernel.org/attachment.cgi?id=158411">https://bugzilla.kernel.org/attachment.cgi?id=158411</a> but I don't know if linux developpers will use this patch for kernel 3.18, it's a nasty bug and some people are not aware about this bug ( bug introduced with kernel 3.17 ), but they will likely have this bug if they mix slow SATA/IDE devices with fast devices on a sata/ide controler who doesn't support AHCI the bug report : <a href="https://bugzilla.kernel.org/show_bug.cgi?id=87581">https://bugzilla.kernel.org/show_bug.cgi?id=87581</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>