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| author | Kevin Kuehler <keur@xcf.berkeley.edu> | 2019-11-10 15:22:35 -0800 |
|---|---|---|
| committer | Drew DeVault <sir@cmpwn.com> | 2019-11-17 13:19:42 -0500 |
| commit | 4966b912c6612768a21c3092fd197124ed504ae9 (patch) | |
| tree | 533f8e86c88ebd1f36b0d753467953e1bf930424 /widgets/msglist.go | |
| parent | c655afa32bea3208885386cc3e600d19c934dd39 (diff) | |
| download | aerc-4966b912c6612768a21c3092fd197124ed504ae9.tar.gz | |
commands/account: Disable :view for deleted msgs
Allowing the user to view deleted messages creates all sorts of race
conditions. The most devious race condition is pv.source can be set to a
nil while another PartViewer is still running a goroutine in
attemptCopy.
Here is a trace when this happens.
goroutine 76 [running]: io.copyBuffer(0x7f8ad02641d0, 0xc00040f590, 0x0,
0x0, 0xc0007cc000, 0x8000, 0x8000, 0x0, 0x0, 0x8b3d60)
/usr/lib/go/src/io/io.go:402 +0x101 io.Copy(...)
/usr/lib/go/src/io/io.go:364
git.sr.ht/~sircmpwn/aerc/widgets.(*PartViewer).attemptCopy.func4(0xc00017efd0,
0xc0004da7c0) /home/keur/repos/aerc/widgets/msgviewer.go:576 +0x611
created by git.sr.ht/~sircmpwn/aerc/widgets.(*PartViewer).attemptCopy
/home/keur/repos/aerc/widgets/msgviewer.go:544 +0x144
We could add a guard in store.FetchBodyPart to only call the callback
when msg.Part.Reader != nil, but we still get a hanging pager. Therefore
it seems more reasonable to disable this completely.
Signed-off-by: Kevin Kuehler <keur@xcf.berkeley.edu>
Diffstat (limited to 'widgets/msglist.go')
0 files changed, 0 insertions, 0 deletions