Date: Thu, 26 Jul 2018 11:55:52 -0700 From: Yuri <yuri@rawbw.com> To: Freebsd hackers list <freebsd-hackers@freebsd.org> Subject: Re: 'scanimage -L' from 'graphics/sane-backends' causes system crashes after a while Message-ID: <4d7eff74-b657-ab35-c025-4aabbe53cc2f@rawbw.com> In-Reply-To: <5fe20134-4b4f-4789-fa54-8ce746453130@rawbw.com> References: <5fe20134-4b4f-4789-fa54-8ce746453130@rawbw.com>
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On 2/20/18 10:15 AM, Yuri wrote: > For my system this works with a 100% reliability: run 'scanimage -L' > (or just scan something), and system will crash after a few hours or so. > > '-L' option calls the function 'sane_get_devices', which has about 90 > implementations there. It calls all of them trying to find a scanner. > Some of them cause system to crash later. > > My real scanner is on the wifi network. I'm not sure if the real > scanner is what causes the problem, or maybe it's some other test > among these 90 'sane_get_devices' functions that causes this problem. > > What is the easiest way to troubleshoot this? The problem is that the > crash doesn't come right away. > > 11.1-STABLE For the record: I never found the reason why this command crashes the system. But there is a workaround: in the file /usr/local/etc/sane.d/dll.conf comment out all scanners except the one that you have. This prevents sane from scanning all possible scanners, and avoids system crashes. Yuri
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