It turns out relocating the symbol table itself can cause issues, like fbt
crashing because it applies the offsets to the kernel twice.
This had been previously brought up in rS333447 when the stoffs hack was
added, but I had been unaware of this and reimplemented symtab relocation.
Instead of relocating the symbol table, keep track of the relocation base
in ddb, so the ddb symbols behave like the kernel linker-provided symbols.
This is intended to be NFC on platforms other than PowerPC, which do not
use fully relocatable kernels. (The relbase will always be 0)
* Remove the rest of the stoffs hack.
* Remove my half-baked displace_symbol_table() function.
* Extend ddb initialization to cope with having a relocation offset on the
kernel symbol table.
* Fix my kernel-as-initrd hack to work with booke64 by using a temporary
mapping to access the data.
* Fix another instance of __powerpc__ that is actually RELOCATABLE_KERNEL.
* Change the behavior or X_db_symbol_values to apply the relocation base
when updating valp, to match link_elf_symbol_values() behavior.
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25223
Without this patch, clnt_vc_soupcall() first does a soreceive() for
4 bytes (the Sun RPC over TCP record mark) and then soreceive(s) for
the RPC message.
This first soreceive() almost always results in an mbuf allocation,
since having the 4byte record mark in a separate mbuf in the socket
rcv queue is unlikely.
This is somewhat inefficient and rather odd. It also will not work
for the ktls rx, since the latter returns a TLS record for each
soreceive().
This patch replaces the above with code similar to what the server side
of the krpc does for TCP, where it does a soreceive() for as much data
as possible and then parses RPC messages out of the received data.
A new field of the TCP socket structure called ct_raw is the list of
received mbufs that the RPC message(s) are parsed from.
I think this results in cleaner code and is needed for support of
nfs-over-tls.
It also fixes the code for the case where a server sends an RPC message
in multiple RPC message fragments. Although this is allowed by RFC5531,
no extant NFS server does this. However, it is probably good to fix this
in case some future NFS server does do this.
for the IPPROTO_SCTP level socket options SCTP_BINDX_ADD_ADDR and
SCTP_BINDX_REM_ADDR. These socket option are intended for internal
use only to implement sctp_bindx().
This is one user of struct sctp_getaddresses less.
struct sctp_getaddresses is strange and will be changed shortly.
root of the too-short tree is black and at least one of the children
of that sibling is red, either one or two rotations finish the
rebalancing. In the case when both of the children are red, the
current implementation uses two rotations where only one is
necessary. This change removes that extra rotation, and in that case
also removes a needless black-to-red-to-black recoloring.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D25335
FreeBSD madvise(2) directly. While some of the flag values match,
most don't.
PR: kern/230160
Reported by: markj
Reviewed by: markj
Discussed with: brooks, kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25272
Once tx mbufs have been handed to hardware, nothing serializes the tx
path against completion and potential use-after-free of the outbound
mbuf. Perform accounting and BPF tap before queueing to hardware to
avoid this race.
Submitted by: Steve Wirtz <steve_wirtz AT dell.com>
Reviewed by: markj, rstone
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D25364
For the sake of the record, this is the last use of the words master and slave
in the FreeBSD's USB stack, drivers and subsystems.
MFC after: 1 week
Sponsored by: Mellanox Technologies
* Add a small description before the EXAMPLES that are already in the man page
to explicitely state what we are trying to show instead of having the user
guess what the example is doing.
* Add two more examples to show usage of -s, -t and -f
* mandoc -Tlint reports irrelevant use of .Tn so remove them since according to
mdoc(7) it is there only for compatibility and should not be used in new
manuals.
Approved by: 0mp@
We should have nextboot feature implemented in libsa zfs code.
To get there, I have created zfs_nextboot() implementation based on
two sources, our current simple textual string based approach with added
structured boot label PAD structure from OpenZFS.
Secondly, all nvlist details are moved to separate source file and
restructured a bit. This is done to provide base support to add nvlist
add/update feature in followup updates.
And finally, the zfsboot/gptzfsboot disk access functions are swapped to use
libi386 and libsa.
Sponsored by: Netflix, Klara Inc.
Differential Revision: https://reviews.freebsd.org/D25324
Unable to find an editor, vipw would give this error:
# env EDITOR=fnord vipw
vipw: pw_edit(): No such file or directory
vigr or crontab do better:
# env EDITOR=fnord crontab -e
crontab: no crontab for root - using an empty one
crontab: fnord: No such file or directory
crontab: "fnord" exited with status 1
After this change, vipw behaves more like vigr or crontab:
# env EDITOR=fnord vipw
vipw: fnord: No such file or directory
vipw: "fnord" exited with status 1
Reviewed by: rpokala, emaste
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25369
The submitter notes that the bcm2835_cpufreq driver really just needs the
rpi4 compat string added to it; powerd subsequently works and the dev.cpu.0
sysctl values look sane and can be successfully manipulated.
Submitted by: James Mintram <me@jamesrm.com>
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D25349
The Quarter Century of Unix book said that 1BSD was released March 1979.
However, the 1BSD tape image that's on Kirk's historical unix collection has an
earlier date.
It was common practice, at the time, to create a new copy of the tape from the
master system when a new tape was to go out, so several different versions of
1BSD, etc were shipped from Berkerely. The date on the 1BSD tape in the Berkeley
archives on Kirk's DVD is dated in January 16 1979 on the label, and has dates
as late as Jan 29 (there's an UPDATE file that says this includes updates
through this date). Note this date as well.
- refactorize packet receive path. Make sure that we don't leak mbufs
and/or that we don't create holes in RX descriptor ring
- slightly simplify handling with TX descriptors
MFC after: 4 weeks
Previously, the -p and -c flags were ignored when reading from stdin
Additionally, -s and -c can be used together now.
PR: 247295
Reviewed by: kevans
MFC after: 2 weeks
Relnotes: yes
Sponsored by: Klara Inc.
Differential Revision: https://reviews.freebsd.org/D25362
Due to kldxref not being able to generate hints for nonnative platforms,
any cross built VM images do not have /boot/kernel/linker.hints.
This prevents the virtio modules from being loaded, as the fallback code
will always fail the version check when the hints are missing.
Since we want to be able to generate VM images for 32 bit powerpc, add the
virtio modules to GENERIC like we do on powerpc64.
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25271
Since qemu does not implement the L2 cache, we get stuck forever waiting
for a bit to be set when trying to invalidate it.
To prevent that, we should bail out if the L2 cache is missing.
One easy way to check this is L2CFG0 == 0 (since L2CSIZE always has at
least one bit set in a valid implementation)
(tested on qemu, rb800, and x5000)
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25225
By using DWC TRM terminology, normal descriptor format should be named
extended and alternate descriptor format should be named normal.
Should not been functional change.
MFC after: 4 weeks
Use naming nomenclature used in DesignWare TRM.
This driver was written by using Altera (now Intel) documentation for Arria
FPGA manual. Unfortunately this manual used very different (and in some cases
opposite naming) for registers and descriptor fields. Unfortunately,
this makes future expansion extremely hard.
Should not been functional change.
MFC after: 4 weeks
When the PCI and CPU physical addresses are identical it doesn't matter
which is used to create the resources, however on some systems, e.g.
qemu armv7 virt, they are different. This leads to a panic as we try to
map the wrong physical address into the kernel address space.
Reported by: Jenkins via trasz
Sponsored by: Innovate UK
- temporarily disable handling with phy, we don't have driver for it yet
- always clear cause for administartive interrupt.
While I'm in, fix style(9) (mainly whitespace).
MFC after: 4 weeks
- only normal memory window is mandatory, prefetchable memory and
I/O windows should be optional
- full PCIe configuration space is supported
- remove duplicated check from function for accessing configuration space.
It is already contained in pci_dw_check_dev()
MFC after: 2 weeks
The AXI bridge is different between ARMADA 38x and 8K, and both platforms
needs specific setup to mitigate HW issues with accessing RTC registers.
MFC after: 2 weeks
