All of the necessary wrmsr calls are now preceded by a rdmsr
and we leave the reserved bits alone.
Document the bits in the relevant registers for future reference.
Tested by: mdf
MFC after: 1 week
Use int32/intptr casts for exception vector names.
Define MIPS_SR_INT_MASK again
Change MIPS_XKPHYS_CCA_* to MIPS_CCA_* since we can use them in many contexts
Minor gratuitous whitespace churn
The problem with setting it there is that the last CPU to come up
wins, it seems. This also removes one more ifdef in locore.S, a noble
goal too. Since they are unused, and pollute cpu.h, remove them.
Submitted by: bde.h (cpu.h pollution)
Approved in theory by: jmallet@
DPCPU variable, rather than a pointer to the type.
- Zero # bytes equivalent to sizeof(object), not sizeof(ptr_to_object).
- Remove an unnecessary __typeof.
Sponsored by: FreeBSD Foundation
Submitted by: jmallet
MFC after: 3 days
Kernel sources for 64-bit PowerPC, along with build-system changes to keep
32-bit kernels compiling (build system changes for 64-bit kernels are
coming later). Existing 32-bit PowerPC kernel configurations must be
updated after this change to specify their architecture.
in Solaris 10 updates 141445-09 and 142901-14.
Detailed information:
(OpenSolaris revisions and Bug IDs, Solaris 10 patch numbers)
7844:effed23820ae
6755435 zfs_open() and zfs_close() needs to use ZFS_ENTER/ZFS_VERIFY_ZP (141445-01)
7897:e520d8258820
6748436 inconsistent zpool.cache in boot_archive could panic a zfs root filesystem upon boot-up (141445-01)
7965:b795da521357
6740164 zpool attach can create an illegal root pool (141909-02)
8084:b811cc60d650
6769612 zpool_import() will continue to write to cachefile even if altroot is set (N/A)
8121:7fd09d4ebd9c
6757430 want an option for zdb to disable space map loading and leak tracking (141445-01)
8129:e4f45a0bfbb0
6542860 ASSERT: reason != VDEV_LABEL_REMOVE||vdev_inuse(vd, crtxg, reason, 0) (141445-01)
8188:fd00c0a81e80
6761100 want zdb option to select older uberblocks (141445-01)
8190:6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw (141445-01)
8225:59a9961c2aeb
6737463 panic while trying to write out config file if root pool import fails (141445-01)
8227:f7d7be9b1f56
6765294 Refactor replay (141445-01)
8228:51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups (141909-01)
6572376 zfs_iter_filesystems and zfs_iter_snapshots get objset stats twice (141909-01)
8241:5a60f16123ba
6328632 zpool offline is a bit too conservative (141445-01)
6739487 ASSERT: txg <= spa_final_txg due to scrub/export race (141445-01)
6767129 ASSERT: cvd->vdev_isspare, in spa_vdev_detach() (141445-01)
6747698 checksum failures after offline -t / export / import / scrub (141445-01)
6745863 ZFS writes to disk after it has been offlined (141445-01)
6722540 50% slowdown on scrub/resilver with certain vdev configurations (141445-01)
6759999 resilver logic rewrites ditto blocks on both source and destination (141445-01)
6758107 I/O should never suspend during spa_load() (141445-01)
6776548 codereview(1) runs off the page when faced with multi-line comments (N/A)
6761406 AMD errata 91 workaround doesn't work on 64-bit systems (141445-01)
8242:e46e4b2f0a03
6770866 GRUB/ZFS should require physical path or devid, but not both (141445-01)
8269:03a7e9050cfd
6674216 "zfs share" doesn't work, but "zfs set sharenfs=on" does (141445-01)
6621164 $SRC/cmd/zfs/zfs_main.c seems to have a syntax error in the translation note (141445-01)
6635482 i18n problems in libzfs_dataset.c and zfs_main.c (141445-01)
6595194 "zfs get" VALUE column is as wide as NAME (141445-01)
6722991 vdev_disk.c: error checking for ddi_pathname_to_dev_t() must test for NODEV (141445-01)
6396518 ASSERT strings shouldn't be pre-processed (141445-01)
8274:846b39508aff
6713916 scrub/resilver needlessly decompress data (141445-01)
8343:655db2375fed
6739553 libzfs_status msgid table is out of sync (141445-01)
6784104 libzfs unfairly rejects numerical values greater than 2^63 (141445-01)
6784108 zfs_realloc() should not free original memory on failure (141445-01)
8525:e0e0e525d0f8
6788830 set large value to reservation cause core dump (141445-01)
6791064 want sysevents for ZFS scrub (141445-01)
6791066 need to be able to set cachefile on faulted pools (141445-01)
6791071 zpool_do_import() should not enable datasets on faulted pools (141445-01)
6792134 getting multiple properties on a faulted pool leads to confusion (141445-01)
8547:bcc7b46e5ff7
6792884 Vista clients cannot access .zfs (141445-01)
8632:36ef517870a3
6798384 It can take a village to raise a zio (141445-01)
8636:7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage() (141909-01)
6504953 zfs_getpage() misunderstands VOP_GETPAGE() interface (141909-01)
6702206 ZFS read/writer lock contention throttles sendfile() benchmark (141445-01)
6780491 Zone on a ZFS filesystem has poor fork/exec performance (141445-01)
6747596 assertion failed: DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), BP_IDENTITY(zio->io_bp))); (141445-01)
8692:692d4668b40d
6801507 ZFS read aggregation should not mind the gap (141445-01)
8697:e62d2612c14d
6633095 creating a filesystem with many properties set is slow (141445-01)
8768:dfecfdbb27ed
6775697 oracle crashes when overwriting after hitting quota on zfs (141909-01)
8811:f8deccf701cf
6790687 libzfs mnttab caching ignores external changes (141445-01)
6791101 memory leak from libzfs_mnttab_init (141445-01)
8845:91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses (N/A)
6582163 Access Control List (ACL) for shares (141445-01)
6804954 smb_search - shortname field should be space padded following the NULL terminator (N/A)
6800184 Panic at smb_oplock_conflict+0x35() (N/A)
8876:59d2e67b4b65
6803822 Reboot after replacement of system disk in a ZFS mirror drops to grub> prompt (141445-01)
8924:5af812f84759
6789318 coredump when issue zdb -uuuu poolname/ (141445-01)
6790345 zdb -dddd -e poolname coredump (141445-01)
6797109 zdb: 'zdb -dddddd pool_name/fs_name inode' coredump if the file with inode was deleted (141445-01)
6797118 zdb: 'zdb -dddddd poolname inum' coredump if I miss the fs name (141445-01)
6803343 shareiscsi=on failed, iscsitgtd failed request to share (141445-01)
9030:243fd360d81f
6815893 hang mounting a dataset after booting into a new boot environment (141445-01)
9056:826e1858a846
6809691 'zpool create -f' no longer overwrites ufs infomation (141445-01)
9179:d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process (141445-01)
9214:8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy (141909-01)
6810367 assertion failed: dvp->v_flag & VROOT, file: ../../common/fs/gfs.c, line: 426 (141909-01)
9229:e3f8b41e5db4
6807765 ztest_dsl_dataset_promote_busy needs to clean up after ENOSPC (141445-01)
9230:e4561e3eb1ef
6821169 offlining a device results in checksum errors (141445-01)
6821170 ZFS should not increment error stats for unavailable devices (141445-01)
6824006 need to increase issue and interrupt taskqs threads in zfs (141445-01)
9234:bffdc4fc05c4
6792139 recovering from a suspended pool needs some work (141445-01)
6794830 reboot command hangs on a failed zfs pool (141445-01)
9246:67c03c93c071
6824062 System panicked in zfs_mount due to NULL pointer dereference when running btts and svvs tests (141909-01)
9276:a8a7fc849933
6816124 System crash running zpool destroy on broken zpool (141445-03)
9355:09928982c591
6818183 zfs snapshot -r is slow due to set_snap_props() doing txg_wait_synced() for each new snapshot (141445-03)
9391:413d0661ef33
6710376 log device can show incorrect status when other parts of pool are degraded (141445-03)
9396:f41cf682d0d3 (part already merged)
6501037 want user/group quotas on ZFS (141445-03)
6827260 assertion failed in arc_read(): hdr == pbuf->b_hdr (141445-03)
6815592 panic: No such hold X on refcount Y from zfs_znode_move (141445-03)
6759986 zfs list shows temporary %clone when doing online zfs recv (141445-03)
9404:319573cd93f8
6774713 zfs ignores canmount=noauto when sharenfs property != off (141445-03)
9412:4aefd8704ce0
6717022 ZFS DMU needs zero-copy support (141445-03)
9425:e7ffacaec3a8
6799895 spa_add_spares() needs to be protected by config lock (141445-03)
6826466 want to post sysevents on hot spare activation (141445-03)
6826468 spa 'allowfaulted' needs some work (141445-03)
6826469 kernel support for storing vdev FRU information (141445-03)
6826470 skip posting checksum errors from DTL regions of leaf vdevs (141445-03)
6826471 I/O errors after device remove probe can confuse FMA (141445-03)
6826472 spares should enjoy some of the benefits of cache devices (141445-03)
9443:2a96d8478e95
6833711 gang leaders shouldn't have to be logical (141445-03)
9463:d0bd231c7518
6764124 want zdb to be able to checksum metadata blocks only (141445-03)
9465:8372081b8019
6830237 zfs panic in zfs_groupmember() (141445-03)
9466:1fdfd1fed9c4
6833162 phantom log device in zpool status (141445-03)
9469:4f68f041ddcd
6824968 add ZFS userquota support to rquotad (141445-03)
9470:6d827468d7b5
6834217 godfather I/O should reexecute (141445-03)
9480:fcff33da767f
6596237 Stop looking and start ganging (141909-02)
9493:9933d599bc93
6623978 lwb->lwb_buf != NULL, file ../../../uts/common/fs/zfs/zil.c, line 787, function zil_lwb_commit (141445-06)
9512:64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads (N/A)
9515:d3b739d9d043
6586537 async zio taskqs can block out userland commands (142901-09)
9554:787363635b6a
6836768 zfs_userspace() callback has no way to indicate failure (N/A)
9574:1eb6a6ab2c57
6838062 zfs panics when an error is encountered in space_map_load() (141909-02)
9583:b0696cd037cc
6794136 Panic BAD TRAP: type=e when importing degraded zraid pool. (141909-03)
9630:e25a03f552e0
6776104 "zfs import" deadlock between spa_unload() and spa_async_thread() (141445-06)
9653:a70048a304d1
6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem (141445-06)
9688:127be1845343
6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot (N/A)
6843069 zfs get userused@S-1-... doesn't work (N/A)
9873:8ddc892eca6e
6847229 assertion failed: refcount_count(&tx->tx_space_written) + delta <= tx->tx_space_towrite in dmu_tx.c (141445-06)
9904:d260bd3fd47c
6838344 kernel heap corruption detected on zil while stress testing (141445-06)
9951:a4895b3dd543
6844900 zfs_ioc_userspace_upgrade leaks (N/A)
10040:38b25aeeaf7a
6857012 zfs panics on zpool import (141445-06)
10000:241a51d8720c
6848242 zdb -e no longer works as expected (N/A)
10100:4a6965f6bef8
6856634 snv_117 not booting: zfs_parse_bootfs: error2 (141445-07)
10160:a45b03783d44
6861983 zfs should use new name <-> SID interfaces (N/A)
6862984 userquota commands can hang (141445-06)
10299:80845694147f
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (N/A)
10302:a9e3d1987706
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (fix lint) (N/A)
10575:2a8816c5173b (partial merge)
6882227 spa_async_remove() shouldn't do a full clear (142901-14)
10800:469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached (142901-09)
6793430 zdb -ivvvv assertion failure: bp->blk_cksum.zc_word[2] == dmu_objset_id(zilog->zl_os) (N/A)
10801:e0bf032e8673 (partial merge)
6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT (142901-09)
10810:b6b161a6ae4a
6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 (142901-09)
10890:499786962772
6807339 spurious checksum errors when replacing a vdev (142901-13)
11249:6c30f7dfc97b
6906110 bad trap panic in zil_replay_log_record (142901-13)
6906946 zfs replay isn't handling uid/gid correctly (142901-13)
11454:6e69bacc1a5a
6898245 suspended zpool should not cause rest of the zfs/zpool commands to hang (142901-10)
11546:42ea6be8961b (partial merge)
6833999 3-way deadlock in dsl_dataset_hold_ref() and dsl_sync_task_group_sync() (142901-09)
Discussed with: pjd
Approved by: delphij (mentor)
Obtained from: OpenSolaris (multiple Bug IDs)
MFC after: 2 months
was missed in r209599.
Reported and tested by: Michael Moll
- Declare mpt_dma_buf_alloc() static just like mpt_dma_buf_free(), both are
used in mpt.c only.
Reviewed by: ken
MFC after: r209599
a packet has only a header in the first mbuf, the
checksum code will dereference a pointer into the
non-existing IP header. Do a check for the size and
pullup if needed. Thanks to Michael Tuexen for this
fix.
MFC: asap - should be in 8.1 IMHO
into the pcb before disabling watchpoints. Otherwise, when the
thread is restored on a processor, watchpoints are still disabled.
Submitted by: Tijl Coosemans <tijl coosemans org>
(I would be much happier if Tijl commited this himself)
MFC after: 1 week
(exec_setregs, etc.) in order to simplify the addition of 64-bit support,
and possible future extension of the Book-E code to handle hard floating
point and Altivec.
MFC after: 1 month
name cache up into nfs_lookup() instead of nfs_open(). Continue this
trend by flushing the attribute cache for leaf nodes in nfs_lookup() during
an open() if we do a LOOKUP RPC. For NFSv3 this should generally be a NOP
as the attributes are flushed before fetching the post-op attributes from
the LOOKUP RPC which most (all?) NFSv3 servers provide, so the post-op
attributes should populate the cache.
Now all NFS open() calls will always clear the cached attributes during the
nfs_lookup() prior to nfs_open() in the !NMODIFIED case to provide CTOC.
As a result, we can remove the conditional flushing of the attribute
cache from nfs_open().
Reviewed by: rmacklem, bde
MFC after: 2 weeks
Do not grab lock while setting up interrupt, as it causes LOR with
allocation code. Instead make interrupt handler check that CAM bus
initialization completed before touching it.
While there, slightly improve attach errors handling.
Reported by: kib
Merge changes for initial n64 support in pmap.c. Use direct mapped (XKPHYS)
access for a lot of operations that earlier needed temporary mapping. Add
support for using XKSEG for kernel mappings.
Reviewed by: imp
Obtained from: jmallett (http://svn.freebsd.org/base/user/jmallett/octeon)
The following systems are affected:
- MPC8555CDS
- MPC8572DS
This overhaul covers the following major changes:
- All integrated peripherals drivers for Freescale MPC85XX SoC, which are
currently in the FreeBSD source tree are reworked and adjusted so they
derive config data out of the device tree blob (instead of hard coded /
tabelarized values).
- This includes: LBC, PCI / PCI-Express, I2C, DS1553, OpenPIC, TSEC, SEC,
QUICC, UART, CFI.
- Thanks to the common FDT infrastrucutre (fdtbus, simplebus) we retire
ocpbus(4) driver, which was based on hard-coded config data.
Note that world for these platforms has to be built WITH_FDT.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
most one call to pmap_qremove(), and thus one TLB shootdown, instead of one
call and TLB shootdown per page.
Simplify the interface to vm_hold_free_pages().
MFC after: 3 weeks
was needed at preliminary version of the patch, where number of CPU ticks
was divided strictly on 16 seconds. Final code instead uses real interval
duration, so precise interval should not be important. Same time aliasing
issues around second boundary causes false positives, periodically logging
useless "t_delta ... too long/short" messages when HZ set below 256.
start so we should adjust the mbuf if the driver is running in PIO mode.
Now it should work well with WPA authentication and association for LP
PHY devices.
Tested by: Warren Block <wblock at wonkity.com>
MFC after: 1 month
Specifically, teach pmap_qenter() to recognize the case when it is being
asked to replace a mapping with the very same mapping and not generate
a shootdown. Unfortunately, the buffer cache commonly passes an entire
buffer to pmap_qenter() when only a subset of the mappings are changing.
For the extension of buffers in allocbuf() this was resulting in
unnecessary shootdowns. The addition of new pages to the end of the
buffer need not and did not trigger a shootdown, but overwriting the
initial mappings with the very same mappings was seen as a change that
necessitated a shootdown. With this change, that is no longer so.
For a "buildworld" on amd64, this change eliminates 14-15% of the
pmap_invalidate_range() shootdowns, and about 4% of the overall
shootdowns.
MFC after: 3 weeks
quirks for weak-symbol handling. Text symbols require also marking weak
the special dot-symbol associated with the function, and data symbols
require that you not do that. To fix this, provide a hacked
__weak_reference for powerpc64, and define a new __weak_reference_data
for the single weak data symbol in base.
Revert after: binutils 2.17 import
Obtained from: projects/ppc64
checksum offloading is enabled. The frame has a valid checksum
value so payload might be modified during TX checksum calculation.
Disable TX checksum offloading but give users chance to enable it
when they know their controller works without problems with TX
checksum offloading.
Reported by: Andrzej Tobola <ato <> iem dot pw dot edu dot pl>
- change the type of pm_active to cpumask_t, which it is;
- in pmap_remove_pages(), compare with PCPU(curpmap), instead of
dereferencing the long chain of pointers [1].
For amd64 pmap, remove the unneeded checks for validity of curpmap
in pmap_activate(), since curpmap should be always valid after
r209789.
Submitted by: alc [1]
Reviewed by: alc
MFC after: 3 weeks
the maintenance of vm_pageout_deficit can be localized to just two places:
vm_page_alloc() and vm_pageout_scan().
This change also corrects an off-by-one error in the maintenance of
vm_pageout_deficit. Historically, the buffer cache functions, allocbuf()
and vm_hold_load_pages(), have not taken into account that vm_page_alloc()
already increments vm_pageout_deficit by one.
Reviewed by: kib
- Run the adapter's tick at 1Hz and remove link state checks from it.
Instead, have each port check its link state. Delay the check so that
it takes place slightly after the driver is notified of a change in
link state. This is a cheap way to debounce these notifications if
many are received in rapid succession. POLL_LINK_1ST_TIME flag can
also be eliminated as a side effect of these changes.
- Do not reset the PHY when link goes down.
- Clear port's link_fault flag if the PHY indicates link is down.
- get_link_status_r should leave speed and duplex alone when link is down.
MFC after: 1 month
checksum is enabled in sge_init_locked().
While I'm here do not set RX checksum bits in RX descriptor
initialization. It is controller's job to set these bits.
Tested by: xclin <xclin <> cs dot nctu dot edu dot tw >
The existing code only checked the alignment of the first mbuf and
didn't enforce the size constraints.
This commit introduces a simple function to check the alignment and
size of all mbufs in the list. This fixes the initial issue in the
PR.
PR: kern/148307
Reviewed by: gonzo@
Updated PTE/PDE macros from http://svn.freebsd.org/base/user/jmallett/octeon
Introduce pmap_segshift() macro, use pmap_segmap() in place of pmap_pde, and
remove pmap_pde().
Approved by: rrs (mentor)
Obtained from: jmallett@
a virtual-mode version for use on 64-bit systems, which have 32-bit
firmware implementations and require similar constraints on addressing
to the real-mode implementation.
flag is always provided, and unconditionally retry after sleep for the
busy page or failed allocation.
The intent is to remove VM_ALLOC_RETRY eventually.
Proposed and reviewed by: alc
do on i386. The consequences of not doing so on amd64 became apparent
with the introduction of the COUNT_IPIS and COUNT_XINVLTLB_HITS
options. Specifically, single-threaded applications were generating
unnecessary IPIs to shoot-down the TLB on other processors. However,
this is clearly nonsensical because a single-threaded application is
only running on the current processor. The reason that this happens
is that pmap_activate() is unable to properly update the old pmap's
field "pm_active" without the correct "curpmap". So, in effect, stale
bits in "pm_active" were leading pmap_protect(), pmap_remove(),
pmap_remove_pages(), etc. to flush the TLB contents on some arbitrary
processor that wasn't even running the same application.
Reviewed by: kib
MFC after: 3 weeks
- Fix a bug where thread may be in sleeping state but the wchan won't
be set, leading to an empty container for sleepq_type(). [0]
Sponsored by: Sandvine Incorporated
[0] Submitted by: Bryan Venteicher
<bryanv at daemoninthecloset dot org>
MFC after: 3 days
X-MFC: 209577
by timeout/error of one of probe commands, process may continue infinitely.
Make CAM ATA more robust to faulty devices and false positive detections,
abort probe after two restarts on timeouts or ten on other errors.
Because slave PICs send all interrupts to their CPU 0 output line (which
is routed to a pin on the master PIC), changes to per-CPU register banks
like EOI on the slave PIC must be accessed for CPU 0, instead of the
CPU actually processing the interrupt.
Submitted by: Andreas Tobler
There are special cases where tty_rel_free() can be called twice in a
row, namely when closing and revoking the TTY at the same moment. Only
call destroy_dev_sched_cb() once.
Reported by: Jeremie Le Hen
MFC after: 1 week
the context of the process that reduced the effective count. Previously
all truncation as a result of unlink happened in the softdep flush
thread. This had the effect of being impossible to rate limit properly
with the journal code. Now the process issuing unlinks is suspended
when the journal files. This has a side-effect of improving rm
performance by allowing more concurrent work.
- Handle two cases in inactive, one for effnlink == 0 and another when
nlink finally reaches 0.
- Eliminate the SPACECOUNTED related code since the truncation is no
longer delayed.
Discussed with: mckusick
configuration to get IPv4 TSO work on BCM57780. While I'm here
apply the same fix to BCM5785 which shares similar hardware feature
of BCM57780. This change makes TSO work on BCM57780.
Tested by: Tong Liu <nemoliu <> gmail dot com>
specify the increment of vm_pageout_deficit when sleeping due to page
shortage. Then, in allocbuf(), the code to allocate pages when extending
vmio buffer can be replaced by a call to vm_page_grab().
Suggested and reviewed by: alc
MFC after: 2 weeks
numbers. This change adds a new function alloc_unr_specific() which
returns the requested unit number if it is free. If the number is
already allocated or out of the range, -1 is returned.
Update alloc_unr(9) manual page accordingly and add a MLINK for
alloc_unr_specific(9).
Discussed on: freebsd-hackers
between determining the other CPUs and calling cpu_ipi_selected(), which
apart from generally doing the wrong thing can lead to a panic when a
CPU is told to IPI itself (which sun4u doesn't support).
Reported and tested by: Nathaniel W Filardo
- Add __unused where appropriate.
MFC after: 3 days
is ordered by page index. This greatly simplifies the implementation,
since we no longer need to mark the pages with VPO_CLEANCHK to denote
the progress. It is enough to remember the current position by index
before dropping the object lock.
Remove VPO_CLEANCHK and VM_PAGER_IGNORE_CLEANCHK as unused.
Garbage-collect vm.msync_flush_flags sysctl.
Suggested and reviewed by: alc
Tested by: pho
it. This can happen in some cases when plugging in SD/SmartCard PC
Cards with empty slots. It is better to detect this bogosity, and
refuse to attach rather than panic with a division by zero (in one of
many places) down stream.
document one of the optional flags; clarify which of the flags are
optional (and which are not), and remove mention of a restriction on
the reclamation of cached pages that no longer holds since version 7.
MFC after: 1 week
large number of packets queued to a crashing process.
In a specific case you may get 2 ABORT's back (from
say two packets in flight). If the aborts happened to
be processed at the same time its possible to have
one free the association while the other is trying
to report all the outbound packets. When this occured
it could lead to a crash.
MFC after: 3 days
FreeBSD. SIFTR logs a range of statistics on active TCP connections to a log
file, providing the ability to make highly granular measurements of TCP
connection state. The tool is aimed at system administrators, developers and
researchers alike. Please take it for a spin and test it out - the man page
should have all the information required to get you going.
Many thanks go to the Cisco University Research Program Fund at Community
Foundation Silicon Valley and the FreeBSD Foundation. Their support of our work
at the Centre for Advanced Internet Architectures, Swinburne University of
Technology is greatly appreciated.
Sponsored by: Cisco URP, FreeBSD Foundation
Reviewed by: dwmalone, gnn, rpaulo
Tested by: Many on freebsd-current@ and elsewhere over the years
MFC after: 1 month
If we save/restore the PageMask, the value set by the bootloader will
persist, and will cause problems later in TLB exception handler.
This caused a crash in AR71xx boards.
Also fixes the EntryHi mask in pte.h
Reported by: Luiz Otavio O Souza <lists.br@gmail.com>
Tested by: Luiz Otavio O Souza <lists.br@gmail.com>
Approved by: rrs (mentor)
a read-lock is being called to check the vtag-timewait cache.
Then in two cases (where a vtag is bad i.e. in the time-wait
state) the write-unlock is called NOT the read-unlock. Under
conditions where lots of associations are coming and going
this will cause the system to panic at some point.
MFC after: 3 days
the core changes but left out the shared code, lol.
Well, and a couple fixes to the core... hopefully
this will all be complete now.
Happy happy joy joy :)
What this provides is support for the 'virtual function'
interface that a FreeBSD VM may be assigned from a host
like KVM on Linux, or newer versions of Xen with such
support.
When the guest is set up with the capability, a special
limited function 82576 PCI device is present in its virtual
PCI space, so with this driver installed in the guest that
device will be detected and function nearly like the bare
metal, as it were.
The interface is only allowed a single queue in this configuration
however initial performance tests have looked very good.
Enjoy!!
Previously, the caller unlocked the page, and vm_pageout_clean()
immediately reacquired the page lock. Also, assert rather than test
that the page is neither busy nor held. Since vm_pageout_clean() is
called with the object and page locked, the page can't have changed
state since the caller verified that the page is neither busy nor
held.
one or more mappings to the bogus page must be replaced, call pmap_qenter()
just once. Previously, pmap_qenter() was called for each mapping to the
bogus page.
MFC after: 3 weeks
limit the advertised speed of an SFP+ to 1G, effectively
"forcing" link at that lower speed. It is off by default
and is enabled by sysctl dev.ix.0.force_gig=1, 0 will
set it back to the norm.
The mpt driver previously didn't report a 'maxio' size to CAM, and so the
da(4) driver limited I/O sizes to DFLTPHYS (64K) by default. The number
of scatter gather segments allowed, as reported to busdma, was
(128K / PAGE_SIZE) + 1, or 33 on architectures with 4K pages.
Change things around so that we wait until we've determined how many
segments the adapter can support before creating the busdma tag used for
buffers, so we can potentially support more S/G segments and therefore
larger I/O sizes.
Also, fix some things that were broken about the module unload path. It
still gets hung up inside CAM, though.
mpt.c: Move some busdma initialization calls in here, and call
them just after we've gotten the IOCFacts, and know how
many S/G segments this adapter can support.
mpt.h: Get rid of MPT_MAXPHYS, it is no longer used.
Add max_cam_seg_cnt, which is used to report our maximum
I/O size up to CAM.
mpt_cam.c: Use max_cam_seg_cnt to report our maximum I/O size to CAM.
Fix the locking in mpt_cam_detach().
mpt_pci.c: Pull some busdma initialization and teardown out and put
it in mpt.c. We now delay it until we know many scatter
gather segments the adapter can support, and therefore
how to setup our busdma tags.
mpt_raid.c: Make sure we wake up the right wait channel to get the
raid thread to wake up when we're trying to shut it down.
Reviewed by: gibbs, mjacob
MFC after: 2 weeks
This prevents a kernel fault by dividing with zero because the initial
rate was 0 and didn't be initialized.
Tested by: Warren Block <wblock at wonkity.com>
MFC after: 3 days
changed to RUN because ic->ic_newassoc isn't set anywhere now. In the
previous bwi_newassoc() is used to initialize AMRR rate routines.
Tested by: Warren Block <wblock at wonkity.com>
MFC after: 3 days
