When deleting a large chunk of emails, often times while working through the deletes, aerc will throw an index out of range error. I pinpointed the offending code to be in worker/imap/worker.go:228-229
i := update.SeqNum - 1 uid := w.seqMap[i]
For some reason the update.SeqNum is much larger than the seqMap length. In one example run,
len(w.seqMap) == 7 and
i == 23. I would patch myself, but I am not completely sure of the underlying issue and would rather avoid a hacky fix.
I've been getting this error as well. It happens to me when the program is idle.
Do you know if it is the same section of code causing it? Or is it just another index out of range error? I have not been able to completely reliably reproduce the error, I just know it happens in that section of code when deleting chunks of emails from the
*client.ExpungeUpdatecase in the
It's the same line. 229 in workers/imap/worker.go
I do have a different client running on my office machine that deletes a bunch of junk emails for the same email box so maybe it's still related to deleting.
If it is the same line, I would expect that to be the case. But I am by no means an expert on the code. I just don't know why else the imap worker would need to expunge messages. Hopefully someone with a little more expertise can help debug.
apologies for digging up that thread, but I do get these panics as well:
* 105 FETCH (FLAGS (\Seen)) 2020/09/25 15:08:40 ->(ui) *types.MessagesDeleted 2020/09/25 15:08:40 (= *client.ExpungeUpdate 2020/09/25 15:08:40 (ui)<= *types.MessagesDeleted(595) 2020/09/25 15:08:40 (ui)<= *types.MessagesDeleted(596) 2020/09/25 15:08:40 (ui)<= *types.MessagesDeleted(597) panic: runtime error: index out of range  with length 107 goroutine 52 [running]: git.sr.ht/~sircmpwn/aerc/worker/imap.(*IMAPWorker).handleImapUpdate(0xc0000ae500, 0x55db328fe458, 0xc0003ec298) git.sr.ht/~sircmpwn/aerc/worker/imap/worker.go:236 +0x70a git.sr.ht/~sircmpwn/aerc/worker/imap.(*IMAPWorker).Run(0xc0000ae500) git.sr.ht/~sircmpwn/aerc/worker/imap/worker.go:260 +0x10f created by git.sr.ht/~sircmpwn/aerc/widgets.NewAccountView git.sr.ht/~sircmpwn/aerc/widgets/account.go:85 +0x518
any insights? (for me it's usually when
aercis idle, or when I don't look at it for a while, that usually happens)