nam for an unbound socket instead of leaving nam untouched in that case.
This way, the getsockname() output can be used to determine the address
family of such sockets (AF_LOCAL).
Reviewed by: iedowse
Approved by: rwatson
linuxulator so as to allow privileged processes within a jail() to
invoke the Linux initgroups() system call. This allows the Linux
"su" to work properly (better) when running a complete Linux
environment under jail(). This problem was reported by Attila
Nagy <bra@fsn.hu>.
Reviewed by: marcel
fs_contigdirs, fs_avgfilesize and fs_avgfpdir. This could cause
panics if these fields were zeroed while a filesystem was mounted
read-only, and then remounted read-write.
Add code to ffs_reload() which copies the fs_contigdirs pointer
from the previous superblock, and reinitialises fs_avgf* if necessary.
Reviewed by: mckusick
With the recent changes in the CAM error handling, some problems in
the error handling of sa(4) have been uncovered. Basically, a number
of conditions that are not actually errors have been mistreated as
genuine errors. In particular:
. Trying to read in variable length mode with a mismatched blocksize
between the on-tape (virtual) blocks and the read(2) supplied buffer
size, causing an ILI SCSI condition, have caused an attempt to retry
the supposedly `errored' transfer, causing the tape to be read
continuously until it eventually hit EOM. Since by default any
simple mt(1) operation does an initial test read, an `mt stat' was
sufficient to trigger this bug.
Note that it's Justin's opinion that treating a NO SENSE as an EIO
is another bug in CAM. I feel not authorized to fix cam_periph.c
without another confirmation that i'm on the right track, however.
. Hitting a filemark caused the read(2) syscall to return EIO, instead
of returning a `short read'. Note that the current fix only solves
this problem in variable length mode. Fixed length mode uses a
different code path, and since i didn't grok all the intentions behind
that handling, i did not touch it (IOW: it's still broken, and you get
an EIO upon hitting a filemark).
The solution is to keep track of those conditions inside saerror(),
and upon completion to not call cam_periph_error() in that case. We
need to make sure that the device gets unfrozen if needed though (in
case of actual errors, cam_periph_error() does this on our behalf).
Not objected by: mjacob (who currently doesn't have the time to
review the patch)
semantics don't: in practice, both policy and semantics permit
loop-back debugging operations, only it's just a subset of debugging
operations (i.e., a proc can open its own /dev/mem), and that's at a
higher layer.
This is will be required to prevent lowering the ipl when a critical_enter()
is present in the interrupt path when handling a machine check.
reviewed by: jhb
only aiod does this and is also marked P_SYSTEM, the locations that
reference p->p_vmspace usually do it within the context of the caller,
the async access from the vm system is protected by the fact that it
will skip over P_SYSTEM processes.
Ok'd by: jhb
