On 2/4/2016 12:28, Tom Lane wrote: > Karl Denninger <k...@denninger.net> writes: >> $ initdb -D data-default >> ... >> creating template1 database in data-default/base/1 ... FATAL: could not >> create semaphores: Invalid argument >> DETAIL: Failed system call was semget(2, 17, 03600). > Hmm. On my Linux box, "man semget" says EINVAL means > > EINVAL nsems is less than 0 or greater than the limit on the number of > semaphores per semaphore set (SEMMSL), or a semaphore set corre- > sponding to key already exists, and nsems is larger than the > number of semaphores in that set. > > which agrees with the POSIX spec. Is FreeBSD the same? > > Proceeding on the assumption that it is ... > > 17 is the same nsems value we've been using for donkey's years, so the > SEMMSL aspect of this seems unlikely to apply; what presumably is > happening is a collision with an existing semaphore's key. Our code is > prepared for that, but it expects a different error code in such cases, > either EEXIST or EACCES: > > /* > * Fail quietly if error indicates a collision with existing set. One > * would expect EEXIST, given that we said IPC_EXCL, but perhaps we > * could get a permission violation instead? Also, EIDRM might occur > * if an old set is slated for destruction but not gone yet. > */ > > It sounds like your kernel is returning EINVAL in preference to any of > those codes, which would be pretty broken. I do not want to make our code > treat EINVAL as meaning we should retry with a different key, because if > the problem is indeed the SEMMSL limit, we'd be in an infinite loop. > > You can probably get past this for the moment if you can remove the > semaphore set with key 2, but I'd advise filing a FreeBSD kernel > bug about their choice of errno. > > regards, tom lane
That sounds like it well may be the problem.... s 65564 2 --rw-rw-rw- www www www www 3 12:29:14 7:56:04 Oh look, the web server process has a semaphore set out with a "2" key.... I've filed a bug report. Thanks. -- Karl Denninger k...@denninger.net <mailto:k...@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/
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