sockstat can "hang" on getpwuid() calls in situations when FreeBSD
is joined to a directory service (AD/LDAP etc) and the directory
service fail to answer in a timely manner when trying to resolve
numeric UIDs to user names.
Submitted by: Caleb St. John <caleb@ixsystems.com>
MFC after: 1 week
This shows up when compiling valectl on a 32 bit platform like i386 and mips32.
gcc-6.4 complains about this (-Wint-to-pointer-cast).
Reviewed by: vmaffione
Differential Revision: https://reviews.freebsd.org/D27814
The handshake timer can race with another thread sending a FIN or RST
to close a TOE TLS socket. Just bail from the timer without
rescheduling if the connection is closed when the timer fires.
Reported by: Sony Arpita Das @ Chelsio QA
Reviewed by: np
Differential Revision: https://reviews.freebsd.org/D27583
This tool can generate kernel images without changing the offsets in
the final executable. It replaces the ELF header by properly sized zeroed
block then emits a relative jump to _start(for 'v7jump' or 'v8jump' option)
or the booti header (for 'v8booti' option) to the beginning of the converted file.
Submited by: ian
Xenstore watches received are queued in a list and processed in a
deferred thread. Such queuing was done without any checking, so a
guest could potentially trigger a resource starvation against the
FreeBSD kernel if such kernel is watching any user-controlled xenstore
path.
Allowing limiting the amount of pending events a watch can accumulate
to prevent a remote guest from triggering this resource starvation
issue.
For the PV device backends and frontends this limitation is only
applied to the other end /state node, which is limited to 1 pending
event, the rest of the watched paths can still have unlimited pending
watches because they are either local or controlled by a privileged
domain.
The xenstore user-space device gets special treatment as it's not
possible for the kernel to know whether the paths being watched by
user-space processes are controlled by a guest domain. For this reason
watches set by the xenstore user-space device are limited to 1000
pending events. Note this can be modified using the
max_pending_watch_events sysctl of the device.
This is XSA-349.
Sponsored by: Citrix Systems R&D
MFC after: 3 days
The issue was found while building cxgbe with gcc 10 (in illumos),
the array subscription check is warning us about outside the bounds
access.
See also: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
This reverts commit 89e3d5671b.
As pointed out, there are several problems with that commit:
1. The new semantics, while useful for clients where multiple
threads use separate contexts, breaks clients which correctly
share a single one
2. Change in semantics would require a library version bump
3. It doesn't build with GCC
- Files for colldef were generated by duplicating UTF-8 collation files
for each language and included invalid characters in the non-UTF-8
encodings. localedef(1) does not allow those characters.
cldr2def.pl now checks if the characters are valid based on charmap files.
TODO: ja_JP.UTF-8 locale should not be generated solely from CLDR because
it was standardized in a document "UI-OSF Application Platform Profile for
Japanese Environment" which was incompatible with information in CLDR.
Most of commercial Unix vendors adopt this pre-Unicode-era document
as the reference even for UTF-8 locale. Newer versions of Solaris have
added a CLDR version as ja_JP.UTF-8@cldr, and IBM AIX has used
JA_JP.UTF-8 for the UI-OSF specification and ja_JP.UTF-8 for CLDR.
Note that this commit does not change generation of ja_JP.UTF-8.
Changes related to this issue will be committed separately later.
- Generate POSIX charamap UTF-32 as a reference. It was confusing that
charmap.xml used Unicode names defined in UnicodeData.txt though POSIX
charmap used slightly different names for the same code points.
cldr2def.pl now uses UTF-32.cm as single information source for Unicode
symbol names and code points. Charset.xml is also updated to use them.
- Fix a bug in get_encodings() in cldr2def.pl which did not understand
0x00+0x00 notation correctly in charmaps/ISCII-DEV.TXT.
- Do not regenerate posix/xx_Comm_C.UTF-8.src every time when doing
"make build".
Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D27809
Add two simple examples. In this case I opted to show a small portion of
the output since it helps to understand what the tool does. It shows the use
of the -t flag too.
PR:
Submitted by:
Reported by:
Reviewed by: gbe@
Approved by: manpages (bcr@)
Obtained from:
MFC after:
MFH:
Relnotes:
Security:
Sponsored by:
Differential Revision: https://reviews.freebsd.org/D27543
* argc/argv are currently unused
* msglen is currently unused
* "default" is a const buffer, but char *cp isn't, so
change default string to be a non-const global string variable
* Make 'cp' private to each context that's using it, which fixes
a "variable shadows previous declaration" warning and makes it
easier to track where it was being leaked between address family
sections
* Remove unused verbose global; things are now done through syslog
* Mark a variable as unused in handle_rtmsg()
Tested:
* FreeBSD/mips32 using gcc-6.4
Each entry actually stores a native pointer, not a uint64_t quantity. While
we're here, go ahead and export the pointer as-is rather than converting it
to KVA. This may be more useful as consumers can map /dev/mem and observe
the entry.
For reference, see: sys/contrib/edk2/Include/Uefi/UefiSpec.h
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27669
Specifically implement the if_requestencap callback function for infiniband.
Most of the changes are simply a cut and paste of the equivalent ethernet part.
Reviewed by: melifaro @
Differential Revision: https://reviews.freebsd.org/D27631
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Need to update both link layer address and broadcast address when active link changes for IP over infiniband.
This is because the broadcast address contains the so-called P-key, which is interface dependent.
Reviewed by: kib @
Differential Revision: https://reviews.freebsd.org/D27658
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Hard-code the GITROOT for the ports tree to use cgit-beta
until the ports repository is converted.
While here, remove $FreeBSD$ RCS IDs.
Sponsored by: Rubicon Communications, LLC (netgate.com)
This fixes a failed assertion in scenario where the provider
disappears, disk_gone() gets called, and at the exact same
time something else closes the device node triggering a retaste.
Reviewed By: mav
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27330
Leaving zeroing to the clients leads to error-prone pointer
tricks (zeroing needs to preserve the CCB header), and this
code is not performance-critical, so there's really no reason
to not do it.
Reviewed By: imp, rpokala (manpages)
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27333
Before r332974 the old code would sometimes cause a rare lock order
reversal against pagequeue, which looked roughly like this:
witness_checkorder()
__mtx_lock-flags()
vm_page_alloc()
uma_small_alloc()
keg_alloc_slab()
keg_fetch-slab()
zone_fetch-slab()
zone_import()
zone_alloc_bucket()
uma_zalloc_arg()
bucket_alloc()
uma_zfree_arg()
free()
devfs_metoo()
devfs_populate_loop()
devfs_populate()
devfs_rioctl()
VOP_IOCTL_APV()
VOP_IOCTL()
vn_ioctl()
fo_ioctl()
kern_ioctl()
sys_ioctl()
Since r332974 the original problem no longer exists, but it still
makes sense to move things out of the - often congested - lock.
Reviewed By: kib, markj
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27334
-mno-align-long-strings was a flag maintained by FreeBSD for the
now-deleted in-tree gcc. Upstream gcc has no such flag, so just drop
it.
The flag was originally submitted by bde and committed in 2002 (svn
r97911 & r104455). However, upstream gcc did address this same issue in
2004 (gcc svn r76694 / git 4137ba7ab7a), reducing long string alignment
in general, and to 1 with -Os.
Reviewed by: kib
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D27768
The original fusefs GSoC project seems to have envisioned exchanging two
types of messages with FUSE servers. Perhaps vectored and non-vectored?
But in practice only one type has ever been used. Delete the other type.
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27770
maxphys is now a tunable, ever since r368124. The default value is also
larger than it used to be. That broke several fusefs tests that made
assumptions about maxphys.
* WriteCluster.clustering used the MAXPHYS compile-time constant.
* WriteBackAsync.direct_io_partially_overlaps_cached_block implicitly
depended on the default value of maxphys. Fix it by making the
dependency explicit.
* Write.write_large implicitly assumed that maxphys would be no more
than twice maxbcachebuf. Fix it by explicitly setting m_max_write.
* WriteCluster.clustering and several others failed because the MockFS
module did not work for max_write > 128KB (which most tests would set
when maxphys > 256KB). Limit max_write accordingly. This is the same
as fusefs-libs's behavior.
* Bmap's tests were originally written for MAXPHYS=128KB. With larger
values, the simulated file size was too small.
PR: 252096
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D27769
Commit 41fb066511 doubled the number of glyph maps in the vfnt format
from 2 to 4 to support double-width characters, but a comment describing
the maps was not updated to match.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
