- Unexpected (raisin98) Mac Os Catalina
- Unexpected (raisin98) Mac Os Download
- Unexpected (raisin98) Mac Os Update
- Unexpected (raisin98) Mac Os X
DHCP - in OS 8.5.x
DHCP - in OS 8.5.x, Open Transport changed their DHCP implementation to be closer to the published standards. Apparently this has caused some disconnects to occur when getting close to the renewal times. To determine if this is your problem, try assigning a static IP address to those clients having problems. If the problem only occurs on those Macs with 8.5.x, then this is probably a good place to start.
AppleShare Client 3.8.1
In AppleShare Client 3.8.1 (from OS 8.5.X), I did fix one hanging/disconnecting bug. It is always a good thing to try the latest AppleShare client on those Mac's having problems. As far as I know (no guarantee's here), the AppleShare client should work on most versions of the OS 7.5.x - 8.5.x, without having to upgrade the OS. Some versions of the clients have a gestalt checking for certain versions of Open Transport that we need. Just copy the AppleShare extension to the client CPU and reboot and see if it works. It should.
Software Conflicts
There seem to be conflicts with some virus checkers (don't remember which ones), and some versions of At Ease (donÕt remember which ones). Try disabling them and see if the problems go away. This is pretty standard isolations. Start with a 'clean' system folder and start adding things in until the bug shows up.
EtherPeek Traces
Imagine trying to tell someone over the telephone (or by e-mail) how to assemble a bike while you are reading the instruction manual inside of a dark closet. Trace files of the network packets tell us exactly what is going on and exactly who is disconnecting who. The server can initiate or the client can initiate the disconnect and there is no way to tell the difference without a trace. Etherpeek is very cheap and a MUST HAVE for debugging network problems. You can download a free demo copy from their web site. No, I don't get any endorsement money from AG Group. I don't even get free copies of their software! ;-)
Network cards/hubs - full/half duplex
Full duplex is kind of like the early 33-56K modem implementations. If you had a modem from company A and another modem from company B, they typically did not work well together even though they both say they support standard XXX. Full duplex is still pretty much hit and miss if you mix and match components from different companies. Half duplex Ethernet seems pretty stable and reliable. Give it a try and see what happens. Trying different Ethernet cards/cables also can help you isolate where the disconnects may be occurring. I also have a small utility called Duplexer that allows you to 'force' the Ethernet Duplex on many of Apple's built in Ethernet.
Mac 911 By Ted Landau, Senior Contributor Oct 7, 2011 3:30 am PDT This week, an updated Apple support article offers a reminder on what to do if Mac OS X Mail keeps crashing ('unexpectedly. I am running OS Mojave 10.14.5, which actually has an update. Could this be the issue? I do not believe I have a.lock file next to the catalog on my system. Hoarders horrible house of stuff mac os. If you mean physically next to my catalog on my HD, I only have a.lrdata file near it.
Release the buttons and let your Mac turn on normally; Update to the latest Mac OS. With every new version of Mac OS, Apple developers do their best to fix all of your software problems, some of which might have not played along well with your hardware. Just do yourself a favor and update your Mac to the latest OS.
Question or issue on macOS:
Scuffed mac os. I wrote a simple program solving the Readers-Writers problem using semaphores. Night fallen mac os. It runs perfectly on Linux os, but when I run it on my Mac osX I get unexpected results and I can't figure out why.
My Program:
The output I receive on Linux (what it's supposed to look like):
Unexpected (raisin98) Mac Os Catalina
The output on Mac osX (unexpected):
How to solve this problem?
Solution no. 1:
Check the error return on the sem_init calls; I bet you'll find the OS X version returning a 'Function not implemented' error.
This is because unnamed POSIX semaphores are not implemented on OS X. You need to use named semaphores, or pthread mutex/condition variables.
Unexpected (raisin98) Mac Os Download
Solution no. 2:
Unexpected (raisin98) Mac Os Update
Just for completeness, here's a working Mac OS X version using sem_open()
and sem_unlink()
instead of sem_init()
and sem_destroy()
.