[issue1599254] mailbox: other programs' messages can vanish without trace

Irit Katriel added the comment: Reproduced on 3.11 - the test in mailbox-test.patch fails. -- nosy: +iritkatriel versions: +Python 3.10, Python 3.11, Python 3.9 -Python 2.7, Python 3.4, Python 3.5 ___ Python tracker

[issue1599254] mailbox: other programs' messages can vanish without trace

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[issue1599254] mailbox: other programs' messages can vanish without trace

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[issue1599254] mailbox: other programs' messages can vanish without trace

David Watson added the comment: On Mon 28 Apr 2014, Jim Jewett wrote: > pinging David Watson: What is the status? If I understand correctly, (and I > may well not), you have already opened other issues for parts of this, and > (only) the final patch is ready for patch (and hopefully) commit r

[issue1599254] mailbox: other programs' messages can vanish without trace

Jim Jewett added the comment: pinging David Watson: What is the status? If I understand correctly, (and I may well not), you have already opened other issues for parts of this, and (only) the final patch is ready for patch (and hopefully) commit review. Is this correct? -- ___

[issue1599254] mailbox: other programs' messages can vanish without trace

David Watson added the comment: On Sun 23 Mar 2014, David Watson wrote: > There actually isn't a test for the original locking issue, as > the tests all use the mailbox API, which doesn't provide a way to > turn off dot-locking. ... On second thought, the underlying error doesn't actually have a

[issue1599254] mailbox: other programs' messages can vanish without trace

David Watson added the comment: On Tue 18 Mar 2014, A.M. Kuchling wrote: > I suggest we apply the fix for #1, and for #2 just discard and > update the ToC when we lock the mailbox, ignoring other > possible routes to corruption (so no detecting the problem and > raising an ExternalClash exception

[issue1599254] mailbox: other programs' messages can vanish without trace

Jim Jewett added the comment: OK, if I understand *that* correctly, (1) The locking mechanism doesn't really work, and that is too complicated to fix in this issue. A new issue would be fine. (2) The locking failure messes up the Table Of Contents, but that is too comprehensive a change to

[issue1599254] mailbox: other programs' messages can vanish without trace

Changes by Terry J. Reedy : -- versions: +Python 3.4, Python 3.5 -Python 3.2, Python 3.3 ___ Python tracker ___ ___ Python-bugs-list

[issue1599254] mailbox: other programs' messages can vanish without trace

A.M. Kuchling added the comment: The bug got so complicated, with so many variations and failure modes, that I just lost track of what to do next. Let's reboot. Problem #1 is that the single-file mailboxes subvert their own fcntl locking by writing to a temp. file and renaming; David's firs

[issue1599254] mailbox: other programs' messages can vanish without trace

Jim Jewett added the comment: What is the status here? As best I can tell from a skim, (a) It should be broken into at least three separate issues. (Though maybe some can just be closed instead of separated?) (b) None of them are security holes, so we missed 2.5 and 2.6, and should now r

[issue1599254] mailbox: other programs' messages can vanish without trace

Petri Lehtinen added the comment: It seems to me that there are three separate issues here: 1) Concurrent access to a single-file mailbox will discard some messages even if locking is correctly used. This is demonstrated by mailbox-test.patch, which despite its age applies on top of 3.2 and f

[issue1599254] mailbox: other programs' messages can vanish without trace

Terry J. Reedy added the comment: D. Watson, could you remove obsolete patches and leave just the ones a patch reviewer should look at? -- nosy: +r.david.murray, terry.reedy -BreamoreBoy versions: +Python 3.3 -Python 3.1 ___ Python tracker

[issue1599254] mailbox: other programs' messages can vanish without trace

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[issue1599254] mailbox: other programs' messages can vanish without trace

Mark Lawrence added the comment: Does any core committer fancy reviewing the 18 attached patches? :) -- nosy: +BreamoreBoy versions: +Python 3.1, Python 3.2 -Python 2.6 ___ Python tracker ___

[issue1599254] mailbox: other programs' messages can vanish without trace

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[issue1599254] mailbox: other programs' messages can vanish without trace

Daniel Diniz added the comment: Barry: is this on scope for the email sprint? -- keywords: +patch nosy: +ajaksu2, barry stage: -> patch review type: -> behavior versions: +Python 2.6 -Python 2.5 ___ Python tracker

[issue1599254] mailbox: other programs' messages can vanish without trace

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