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Re: Best way to repair cygwin?


You can select "re-install" in the package manager. Just toggel the icon next to "All" (at the top) until it reads "re-install".

I like to keep a back up of anything I have added or configured, such as the path folders and such. That way, if I have to wipe out the cygwin folder and start again, it is not so much trouble. I would be nice if the package manager could dump it's current state to an xml file or something like that so I don't have to remember everything I have installed. Maybe there is a feature like that, but I'm not aware of it.

I don't know if re-install keeps your configurations or not, so that is something to find out about or prepare for.

LMH



Ronald Fischer wrote:
Cygwin worked well so far. However, starting with today, I get the
following error - for example when invoking bash:

MUCNL3E6880:~ 2 23 $ bash --norc
     163 [main] bash 5788 exception::handle: Exception:
     STATUS_ACCESS_VIOLATION
    1958 [main] bash 5788 open_stackdumpfile: Dumping stack trace to
    bash.exe.stackdup

When doing a

zsh -f

this works at first, but as soon as I do a

man man

in the shell, I get

9420794 [main] sh 8004 exception::handle: Exception:
STATUS_ACCESS_VIOLATION
Exception: STATUS_ACCESS_VIOLATION at eip=6102048B
eax=009DD298 ebx=61246414 ecx=758E7B6E edx=003F51F8 esi=00000000
edi=0022FA10
ebp=61020C00 esp=0022C7E0 program=C:\cygwin\bin\sh.exe, pid 8004, thread
main
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame     Function  Args
End of stack trace
9455844 [main] sh 5776 exception::handle: Exception:
STATUS_ACCESS_VIOLATION
9458931 [main] sh 5776 open_stackdumpfile: Dumping stack trace to
sh.exe.stackdump
9487143 [main] sh 348 exception::handle: Exception:
STATUS_ACCESS_VIOLATION
9490092 [main] sh 348 open_stackdumpfile: Dumping stack trace to
sh.exe.stackdump
9494562 [main] sh 1860 fork: child -1 - died waiting for longjmp before
initializatio
n, retry 0, exit code 0x8B00, errno 11
sh: fork: retry: Resource temporarily unavailable
...
(and so on, in a endless loop).

I wonder why zsh is invoking "sh.exe" implicitly, when I just call
"man", but in any case the error message suggests that bash.exe / sh.exe
is broken.

I had run setup again yesterday evening, in order to install wcd (found
in the util section). The setup run to the end without error message,
and I switched off the PC. Today I found bash broken. Since wcd utility
is an extension to the chdir command, it is conceivable that it fiddled
around with bash somehow, but I consider it unlikely that this would
cause the effect I am observing: Such an obvious bug would not have been
unnoticed.

I wonder whether there is an easy way to "repair" Cygwin (maybe a
procedure to automatically re-install everything). I searched on the Net
but didn't find anything in this direction. Any other idea what I could
do?

Ronald

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