I managed to get mysqld to run in this context using strace.
(Aside - took a bit of trickery using a secondary script, because although
mysql_install_db lets you choose the program to run for mysqldb it is quoted
and so you cant just use 'strace mysqld' as the exec)
pwrite(7,
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 1048576,
49283072) = 1048576
fsync(7) = 0
close(7) = 0
open("./ibdata1", O_RDWR) = 7
fcntl(7, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0
getcwd("/var/lib/mysql", 4096) = 15
open("./ib_logfile101", O_RDWR|O_SYNC|0x100000) = 12
fcntl(12, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0
getcwd("/var/lib/mysql", 4096) = 15
open("./ib_logfile1", O_RDWR|O_SYNC|0x100000) = 13
fcntl(13, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0
getcwd("/var/lib/mysql", 4096) = 15
pwrite(12, "\0\0\0\0\0\0\0\0\0\0\"\0\0\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0"...,
512, 0) = 512
pwrite(12,
"\200\0\0\22\0\f\0\f\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 512,
2048) = 512
time(NULL) = 1392552763
io_submit(140435475795968, 1, {...}) = -1 EINVAL (Invalid argument)
time([1392552763]) = 1392552763
write(2, "2014-02-16 22:42:43 7fb9aea4d780", 322014-02-16 22:42:43
7fb9aea4d780) = 32
According to man io_submit:
EINVAL The AIO context specified by ctx_id is invalid. nr is less than
0. The iocb at *iocbpp[0] is not properly initialized, or the operation
specified is invalid for
the file descriptor in the iocb.
There are other calls to io_submit further back in the strace that succeed.
As far as I can tell this call is made on line approx 4461 of
storage/innobase/os/os0file.cc
Having not used aio before my debugging kind of stops there...
_______________________________________________
Mailing list: https://launchpad.net/~maria-developers
Post to : [email protected]
Unsubscribe : https://launchpad.net/~maria-developers
More help : https://help.launchpad.net/ListHelp
