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|623918a1||whu||Jan. 13, 2022, 6:08 a.m.||mana: Improve the HWC error handling
Currently when the HWC creation fails, the error handling is flawed, e.g. if mana_hwc_create_channel() -> mana_hwc_establish_channel() fails, the resources acquired in mana_hwc_init_queues() is not released. Enhance mana_hwc_destroy_channel() to do the proper cleanup work and call it accordingly. MFC after: 2 weeks Sponsored by: Microsoftcgit
|0e8181c0||erj||Jan. 12, 2022, 11:37 p.m.||ixl(4): Remove unused function declaration|
|0910a41e||brooks||Jan. 12, 2022, 11:29 p.m.||Revert "syscallarg_t: Add a type for system call arguments"
Missed issues in truss on at least armv7 and powerpcspe need to be resolved before recommit. This reverts commit 3889fb8af0b611e3126dc250ebffb01805152104. This reverts commit 1544e0f5d1f1e3b8c10a64cb899a936976ca7ea4.cgit
|3889fb8a||brooks||Jan. 12, 2022, 10:51 p.m.||sysent: regen for syscallarg_t|
|1544e0f5||brooks||Jan. 12, 2022, 10:51 p.m.||syscallarg_t: Add a type for system call arguments
This more clearly differentiates system call arguments from integer registers and return values. On current architectures it has no effect, but on architectures where pointers are not integers (CHERI) and may not even share registers (CHERI-MIPS) it is necessiary to differentiate between system call arguments (syscallarg_t) and integer register values (register_t). Obtained from: CheriBSD Reviewed by: imp, kib Differential Revision: https://reviews.freebsd.org/D33780cgit
|896a0153||cy||Jan. 12, 2022, 9:03 p.m.||ipfilter: Fixup comment
Fix comment documenting checksum block in ip_nat.c. Fastforward doesn't perform checksum. MFC after: 1 weekcgit
|2a646524||cy||Jan. 12, 2022, 8:58 p.m.||ipfilter: Fix IP header checksums post ftp proxy
Don't assume checksums will be calculated later in fastforward. MFC after: 1 weekcgit
|6af38b34||cy||Jan. 12, 2022, 8:58 p.m.||ipfilter: Fix whitespace errors
MFC after: 3 dayscgit
|4b5c0c9b||cy||Jan. 12, 2022, 8:58 p.m.||ipfilter: Correct function description
Correct the parameters descriptions for ipf_fix_outcksum and ipf_fix_incksum. MFC after: 3 dayscgit
|835a0e2f||cy||Jan. 12, 2022, 8:58 p.m.||ipfilter: inline is superfluous for an extrn function
Remove superfluous inline for function defined as extrn. MFC after: 3 dayscgit
|f98cc177||cy||Jan. 12, 2022, 8:58 p.m.||ipfilter: Remove redundant else if
Combine two else ifs using an or. MFC after: 3 dayscgit
|c2705cea||cperciva||Jan. 12, 2022, 8:34 p.m.||x86: Speed up clock calibration
Prior to this commit, the TSC and local APIC frequencies were calibrated at boot time by measuring the clocks before and after a one-second sleep. This was simple and effective, but had the disadvantage of *requiring a one-second sleep*. Rather than making two clock measurements (before and after sleeping) we now perform many measurements; and rather than simply subtracting the starting count from the ending count, we calculate a best-fit regression between the target clock and the reference clock (for which the current best available timecounter is used). While we do this, we keep track of an estimate of the uncertainty in the regression slope (aka. the ratio of clock speeds), and stop measuring when we believe the uncertainty is less than 1 PPM. In order to avoid the risk of aliasing resulting from the data-gathering loop synchronizing with (a multiple of) the frequency of the reference clock, we add some additional spinning depending upon the iteration number. For numerical stability and simplicity of implementation, we make use of floating-point arithmetic for the statistical calculations. On the author's Dell laptop, this reduces the time spent in calibration from 2000 ms to 29 ms; on an EC2 c5.xlarge instance, it is reduced from 2000 ms to 2.5 ms. Reviewed by: bde (previous version), kib MFC after: 1 month Sponsored by: https://www.patreon.com/cperciva Differential Revision: https://reviews.freebsd.org/D33802cgit
|12f747e6||kib||Jan. 12, 2022, 6:04 p.m.||truss(1): detach more carefully
When detaching, truss(1) sends SIGSTOP to the traced process to ensure that it is detaching in the steady state. But it is possible, for multithreaded process, that wait() call returns event other than our SIGSTOP notification. As result, SIGSTOP might sit in some thread' sigqueue, which makes SIGCONT a nop. Then, the process is stopped when the queued SIGSTOP is acted upon. To handle this, loop until we drain everything before SIGSTOP, and see that the process is stopped. Note that the earlier fix makes it safe to have some more debugging events longering after SIGSTOP is acted upon. They will be ignored after PT_DETACH. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D33861cgit
|ba33c288||kib||Jan. 12, 2022, 6:04 p.m.||truss: remove write-only variable|
|84e2ae64||dougm||Jan. 12, 2022, 5:03 p.m.||vm_reserv: use enhanced bitstring for popmaps
vm_reserv.c uses its own bitstring implemenation for popmaps. Using the bitstring_t type from a standard header eliminates the code duplication, allows some bit-at-a-time operations to be replaced with more efficient bitstring range operations, and, in vm_reserv_test_contig, allows bit_ffc_area_at to more efficiently search for a big-enough set of consecutive zero-bits. Make bitstring changes improve the vm_reserv code. Define a bit_ntest method to test whether a range of bits is all set, or all clear. Define bit_ff_at and bit_ff_area_at to implement the ffs and ffc versions with a parameter to choose between set- and clear- bits. Improve the area_at implementation. Modify the bit_nset and bit_nclear implementations to allow code optimization in the cases when start or end are multiples of _BITSTR_BITS. Add a few new cases to bitstring_test. Discussed with: alc Reviewed by: markj Tested by: pho (earlier version) Differential Revision: https://reviews.freebsd.org/D33312cgit