Coreforge's AMD Radeon driver work on 6.6.y Linux branch #8
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This was referenced Oct 4, 2024
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commit ac01c8c upstream. AddressSanitizer found a use-after-free bug in the symbol code which manifested as 'perf top' segfaulting. ==1238389==ERROR: AddressSanitizer: heap-use-after-free on address 0x60b00c48844b at pc 0x5650d8035961 bp 0x7f751aaecc90 sp 0x7f751aaecc80 READ of size 1 at 0x60b00c48844b thread T193 #0 0x5650d8035960 in _sort__sym_cmp util/sort.c:310 #1 0x5650d8043744 in hist_entry__cmp util/hist.c:1286 #2 0x5650d8043951 in hists__findnew_entry util/hist.c:614 #3 0x5650d804568f in __hists__add_entry util/hist.c:754 #4 0x5650d8045bf9 in hists__add_entry util/hist.c:772 #5 0x5650d8045df1 in iter_add_single_normal_entry util/hist.c:997 #6 0x5650d8043326 in hist_entry_iter__add util/hist.c:1242 #7 0x5650d7ceeefe in perf_event__process_sample /home/matt/src/linux/tools/perf/builtin-top.c:845 #8 0x5650d7ceeefe in deliver_event /home/matt/src/linux/tools/perf/builtin-top.c:1208 #9 0x5650d7fdb51b in do_flush util/ordered-events.c:245 raspberrypi#10 0x5650d7fdb51b in __ordered_events__flush util/ordered-events.c:324 raspberrypi#11 0x5650d7ced743 in process_thread /home/matt/src/linux/tools/perf/builtin-top.c:1120 raspberrypi#12 0x7f757ef1f133 in start_thread nptl/pthread_create.c:442 raspberrypi#13 0x7f757ef9f7db in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81 When updating hist maps it's also necessary to update the hist symbol reference because the old one gets freed in map__put(). While this bug was probably introduced with 5c24b67 ("perf tools: Replace map->referenced & maps->removed_maps with map->refcnt"), the symbol objects were leaked until c087e94 ("perf machine: Fix refcount usage when processing PERF_RECORD_KSYMBOL") was merged so the bug was masked. Fixes: c087e94 ("perf machine: Fix refcount usage when processing PERF_RECORD_KSYMBOL") Reported-by: Yunzhao Li <[email protected]> Signed-off-by: Matt Fleming (Cloudflare) <[email protected]> Cc: Ian Rogers <[email protected]> Cc: [email protected] Cc: Namhyung Kim <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: [email protected] # v5.13+ Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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commit 9af2efe upstream. The fields in the hist_entry are filled on-demand which means they only have meaningful values when relevant sort keys are used. So if neither of 'dso' nor 'sym' sort keys are used, the map/symbols in the hist entry can be garbage. So it shouldn't access it unconditionally. I got a segfault, when I wanted to see cgroup profiles. $ sudo perf record -a --all-cgroups --synth=cgroup true $ sudo perf report -s cgroup Program received signal SIGSEGV, Segmentation fault. 0x00005555557a8d90 in map__dso (map=0x0) at util/map.h:48 48 return RC_CHK_ACCESS(map)->dso; (gdb) bt #0 0x00005555557a8d90 in map__dso (map=0x0) at util/map.h:48 #1 0x00005555557aa39b in map__load (map=0x0) at util/map.c:344 #2 0x00005555557aa592 in map__find_symbol (map=0x0, addr=140736115941088) at util/map.c:385 #3 0x00005555557ef000 in hists__findnew_entry (hists=0x555556039d60, entry=0x7fffffffa4c0, al=0x7fffffffa8c0, sample_self=true) at util/hist.c:644 #4 0x00005555557ef61c in __hists__add_entry (hists=0x555556039d60, al=0x7fffffffa8c0, sym_parent=0x0, bi=0x0, mi=0x0, ki=0x0, block_info=0x0, sample=0x7fffffffaa90, sample_self=true, ops=0x0) at util/hist.c:761 #5 0x00005555557ef71f in hists__add_entry (hists=0x555556039d60, al=0x7fffffffa8c0, sym_parent=0x0, bi=0x0, mi=0x0, ki=0x0, sample=0x7fffffffaa90, sample_self=true) at util/hist.c:779 #6 0x00005555557f00fb in iter_add_single_normal_entry (iter=0x7fffffffa900, al=0x7fffffffa8c0) at util/hist.c:1015 #7 0x00005555557f09a7 in hist_entry_iter__add (iter=0x7fffffffa900, al=0x7fffffffa8c0, max_stack_depth=127, arg=0x7fffffffbce0) at util/hist.c:1260 #8 0x00005555555ba7ce in process_sample_event (tool=0x7fffffffbce0, event=0x7ffff7c14128, sample=0x7fffffffaa90, evsel=0x555556039ad0, machine=0x5555560388e8) at builtin-report.c:334 #9 0x00005555557b30c8 in evlist__deliver_sample (evlist=0x555556039010, tool=0x7fffffffbce0, event=0x7ffff7c14128, sample=0x7fffffffaa90, evsel=0x555556039ad0, machine=0x5555560388e8) at util/session.c:1232 raspberrypi#10 0x00005555557b32bc in machines__deliver_event (machines=0x5555560388e8, evlist=0x555556039010, event=0x7ffff7c14128, sample=0x7fffffffaa90, tool=0x7fffffffbce0, file_offset=110888, file_path=0x555556038ff0 "perf.data") at util/session.c:1271 raspberrypi#11 0x00005555557b3848 in perf_session__deliver_event (session=0x5555560386d0, event=0x7ffff7c14128, tool=0x7fffffffbce0, file_offset=110888, file_path=0x555556038ff0 "perf.data") at util/session.c:1354 raspberrypi#12 0x00005555557affaf in ordered_events__deliver_event (oe=0x555556038e60, event=0x555556135aa0) at util/session.c:132 raspberrypi#13 0x00005555557bb605 in do_flush (oe=0x555556038e60, show_progress=false) at util/ordered-events.c:245 raspberrypi#14 0x00005555557bb95c in __ordered_events__flush (oe=0x555556038e60, how=OE_FLUSH__ROUND, timestamp=0) at util/ordered-events.c:324 raspberrypi#15 0x00005555557bba46 in ordered_events__flush (oe=0x555556038e60, how=OE_FLUSH__ROUND) at util/ordered-events.c:342 raspberrypi#16 0x00005555557b1b3b in perf_event__process_finished_round (tool=0x7fffffffbce0, event=0x7ffff7c15bb8, oe=0x555556038e60) at util/session.c:780 raspberrypi#17 0x00005555557b3b27 in perf_session__process_user_event (session=0x5555560386d0, event=0x7ffff7c15bb8, file_offset=117688, file_path=0x555556038ff0 "perf.data") at util/session.c:1406 As you can see the entry->ms.map was NULL even if he->ms.map has a value. This is because 'sym' sort key is not given, so it cannot assume whether he->ms.sym and entry->ms.sym is the same. I only checked the 'sym' sort key here as it implies 'dso' behavior (so maps are the same). Fixes: ac01c8c ("perf hist: Update hist symbol when updating maps") Signed-off-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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…tion to perf_sched__replay() [ Upstream commit c690786 ] The start_work_mutex and work_done_wait_mutex are used only for the 'perf sched replay'. Put their initialization in perf_sched__replay () to reduce unnecessary actions in other commands. Simple functional testing: # perf sched record perf bench sched messaging # Running 'sched/messaging' benchmark: # 20 sender and receiver processes per group # 10 groups == 400 processes run Total time: 0.197 [sec] [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 14.952 MB perf.data (134165 samples) ] # perf sched replay run measurement overhead: 108 nsecs sleep measurement overhead: 65658 nsecs the run test took 999991 nsecs the sleep test took 1079324 nsecs nr_run_events: 42378 nr_sleep_events: 43102 nr_wakeup_events: 31852 target-less wakeups: 17 multi-target wakeups: 712 task 0 ( swapper: 0), nr_events: 10451 task 1 ( swapper: 1), nr_events: 3 task 2 ( swapper: 2), nr_events: 1 <SNIP> task 717 ( sched-messaging: 74483), nr_events: 152 task 718 ( sched-messaging: 74484), nr_events: 1944 task 719 ( sched-messaging: 74485), nr_events: 73 task 720 ( sched-messaging: 74486), nr_events: 163 task 721 ( sched-messaging: 74487), nr_events: 942 task 722 ( sched-messaging: 74488), nr_events: 78 task 723 ( sched-messaging: 74489), nr_events: 1090 ------------------------------------------------------------ #1 : 1366.507, ravg: 1366.51, cpu: 7682.70 / 7682.70 #2 : 1410.072, ravg: 1370.86, cpu: 7723.88 / 7686.82 #3 : 1396.296, ravg: 1373.41, cpu: 7568.20 / 7674.96 #4 : 1381.019, ravg: 1374.17, cpu: 7531.81 / 7660.64 #5 : 1393.826, ravg: 1376.13, cpu: 7725.25 / 7667.11 #6 : 1401.581, ravg: 1378.68, cpu: 7594.82 / 7659.88 #7 : 1381.337, ravg: 1378.94, cpu: 7371.22 / 7631.01 #8 : 1373.842, ravg: 1378.43, cpu: 7894.92 / 7657.40 #9 : 1364.697, ravg: 1377.06, cpu: 7324.91 / 7624.15 raspberrypi#10 : 1363.613, ravg: 1375.72, cpu: 7209.55 / 7582.69 # echo $? 0 Signed-off-by: Yang Jihong <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Link: https://lore.kernel.org/r/[email protected] Stable-dep-of: 1a5efc9 ("libsubcmd: Don't free the usage string") Signed-off-by: Sasha Levin <[email protected]>
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…f_sched__{lat|map|replay}()
[ Upstream commit bd2cdf2 ]
The curr_pid and cpu_last_switched are used only for the
'perf sched replay/latency/map'. Put their initialization in
perf_sched__{lat|map|replay () to reduce unnecessary actions in other
commands.
Simple functional testing:
# perf sched record perf bench sched messaging
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 0.209 [sec]
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 16.456 MB perf.data (147907 samples) ]
# perf sched lat
-------------------------------------------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Max delay start | Max delay end |
-------------------------------------------------------------------------------------------------------------------------------------------
sched-messaging:(401) | 2990.699 ms | 38705 | avg: 0.661 ms | max: 67.046 ms | max start: 456532.624830 s | max end: 456532.691876 s
qemu-system-x86:(7) | 179.764 ms | 2191 | avg: 0.152 ms | max: 21.857 ms | max start: 456532.576434 s | max end: 456532.598291 s
sshd:48125 | 0.522 ms | 2 | avg: 0.037 ms | max: 0.046 ms | max start: 456532.514610 s | max end: 456532.514656 s
<SNIP>
ksoftirqd/11:82 | 0.063 ms | 1 | avg: 0.005 ms | max: 0.005 ms | max start: 456532.769366 s | max end: 456532.769371 s
kworker/9:0-mm_:34624 | 0.233 ms | 20 | avg: 0.004 ms | max: 0.007 ms | max start: 456532.690804 s | max end: 456532.690812 s
migration/13:93 | 0.000 ms | 1 | avg: 0.004 ms | max: 0.004 ms | max start: 456532.512669 s | max end: 456532.512674 s
-----------------------------------------------------------------------------------------------------------------
TOTAL: | 3180.750 ms | 41368 |
---------------------------------------------------
# echo $?
0
# perf sched map
*A0 456532.510141 secs A0 => migration/0:15
*. 456532.510171 secs . => swapper:0
. *B0 456532.510261 secs B0 => migration/1:21
. *. 456532.510279 secs
<SNIP>
L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 *L7 . . . . 456532.785979 secs
L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 *L7 . . . 456532.786054 secs
L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 *L7 . . 456532.786127 secs
L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 *L7 . 456532.786197 secs
L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 L7 *L7 456532.786270 secs
# echo $?
0
# perf sched replay
run measurement overhead: 108 nsecs
sleep measurement overhead: 66473 nsecs
the run test took 1000002 nsecs
the sleep test took 1082686 nsecs
nr_run_events: 49334
nr_sleep_events: 50054
nr_wakeup_events: 34701
target-less wakeups: 165
multi-target wakeups: 766
task 0 ( swapper: 0), nr_events: 15419
task 1 ( swapper: 1), nr_events: 1
task 2 ( swapper: 2), nr_events: 1
<SNIP>
task 715 ( sched-messaging: 110248), nr_events: 1438
task 716 ( sched-messaging: 110249), nr_events: 512
task 717 ( sched-messaging: 110250), nr_events: 500
task 718 ( sched-messaging: 110251), nr_events: 537
task 719 ( sched-messaging: 110252), nr_events: 823
------------------------------------------------------------
#1 : 1325.288, ravg: 1325.29, cpu: 7823.35 / 7823.35
#2 : 1363.606, ravg: 1329.12, cpu: 7655.53 / 7806.56
#3 : 1349.494, ravg: 1331.16, cpu: 7544.80 / 7780.39
#4 : 1311.488, ravg: 1329.19, cpu: 7495.13 / 7751.86
#5 : 1309.902, ravg: 1327.26, cpu: 7266.65 / 7703.34
#6 : 1309.535, ravg: 1325.49, cpu: 7843.86 / 7717.39
#7 : 1316.482, ravg: 1324.59, cpu: 7854.41 / 7731.09
#8 : 1366.604, ravg: 1328.79, cpu: 7955.81 / 7753.57
#9 : 1326.286, ravg: 1328.54, cpu: 7466.86 / 7724.90
raspberrypi#10 : 1356.653, ravg: 1331.35, cpu: 7566.60 / 7709.07
# echo $?
0
Signed-off-by: Yang Jihong <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Stable-dep-of: 1a5efc9 ("libsubcmd: Don't free the usage string")
Signed-off-by: Sasha Levin <[email protected]>
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[ Upstream commit a848c29 ] On the node of an NFS client, some files saved in the mountpoint of the NFS server were copied to another location of the same NFS server. Accidentally, the nfs42_complete_copies() got a NULL-pointer dereference crash with the following syslog: [232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 [232066.588586] Mem abort info: [232066.588701] ESR = 0x0000000096000007 [232066.588862] EC = 0x25: DABT (current EL), IL = 32 bits [232066.589084] SET = 0, FnV = 0 [232066.589216] EA = 0, S1PTW = 0 [232066.589340] FSC = 0x07: level 3 translation fault [232066.589559] Data abort info: [232066.589683] ISV = 0, ISS = 0x00000007 [232066.589842] CM = 0, WnR = 0 [232066.589967] user pgtable: 64k pages, 48-bit VAs, pgdp=00002000956ff400 [232066.590231] [0000000000000058] pgd=08001100ae100003, p4d=08001100ae100003, pud=08001100ae100003, pmd=08001100b3c00003, pte=0000000000000000 [232066.590757] Internal error: Oops: 96000007 [#1] SMP [232066.590958] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm vhost_net vhost vhost_iotlb tap tun ipt_rpfilter xt_multiport ip_set_hash_ip ip_set_hash_net xfrm_interface xfrm6_tunnel tunnel4 tunnel6 esp4 ah4 wireguard libcurve25519_generic veth xt_addrtype xt_set nf_conntrack_netlink ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_bitmap_port ip_set_hash_ipport dummy ip_set ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs iptable_filter sch_ingress nfnetlink_cttimeout vport_gre ip_gre ip_tunnel gre vport_geneve geneve vport_vxlan vxlan ip6_udp_tunnel udp_tunnel openvswitch nf_conncount dm_round_robin dm_service_time dm_multipath xt_nat xt_MASQUERADE nft_chain_nat nf_nat xt_mark xt_conntrack xt_comment nft_compat nft_counter nf_tables nfnetlink ocfs2 ocfs2_nodemanager ocfs2_stackglue iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_ssif nbd overlay 8021q garp mrp bonding tls rfkill sunrpc ext4 mbcache jbd2 [232066.591052] vfat fat cas_cache cas_disk ses enclosure scsi_transport_sas sg acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler ip_tables vfio_pci vfio_pci_core vfio_virqfd vfio_iommu_type1 vfio dm_mirror dm_region_hash dm_log dm_mod nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc fuse xfs libcrc32c ast drm_vram_helper qla2xxx drm_kms_helper syscopyarea crct10dif_ce sysfillrect ghash_ce sysimgblt sha2_ce fb_sys_fops cec sha256_arm64 sha1_ce drm_ttm_helper ttm nvme_fc igb sbsa_gwdt nvme_fabrics drm nvme_core i2c_algo_bit i40e scsi_transport_fc megaraid_sas aes_neon_bs [232066.596953] CPU: 6 PID: 4124696 Comm: 10.253.166.125- Kdump: loaded Not tainted 5.15.131-9.cl9_ocfs2.aarch64 #1 [232066.597356] Hardware name: Great Wall .\x93\x8e...RF6260 V5/GWMSSE2GL1T, BIOS T656FBE_V3.0.18 2024-01-06 [232066.597721] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [232066.598034] pc : nfs4_reclaim_open_state+0x220/0x800 [nfsv4] [232066.598327] lr : nfs4_reclaim_open_state+0x12c/0x800 [nfsv4] [232066.598595] sp : ffff8000f568fc70 [232066.598731] x29: ffff8000f568fc70 x28: 0000000000001000 x27: ffff21003db33000 [232066.599030] x26: ffff800005521ae0 x25: ffff0100f98fa3f0 x24: 0000000000000001 [232066.599319] x23: ffff800009920008 x22: ffff21003db33040 x21: ffff21003db33050 [232066.599628] x20: ffff410172fe9e40 x19: ffff410172fe9e00 x18: 0000000000000000 [232066.599914] x17: 0000000000000000 x16: 0000000000000004 x15: 0000000000000000 [232066.600195] x14: 0000000000000000 x13: ffff800008e685a8 x12: 00000000eac0c6e6 [232066.600498] x11: 0000000000000000 x10: 0000000000000008 x9 : ffff8000054e5828 [232066.600784] x8 : 00000000ffffffbf x7 : 0000000000000001 x6 : 000000000a9eb14a [232066.601062] x5 : 0000000000000000 x4 : ffff70ff8a14a800 x3 : 0000000000000058 [232066.601348] x2 : 0000000000000001 x1 : 54dce46366daa6c6 x0 : 0000000000000000 [232066.601636] Call trace: [232066.601749] nfs4_reclaim_open_state+0x220/0x800 [nfsv4] [232066.601998] nfs4_do_reclaim+0x1b8/0x28c [nfsv4] [232066.602218] nfs4_state_manager+0x928/0x10f0 [nfsv4] [232066.602455] nfs4_run_state_manager+0x78/0x1b0 [nfsv4] [232066.602690] kthread+0x110/0x114 [232066.602830] ret_from_fork+0x10/0x20 [232066.602985] Code: 1400000d f9403f20 f9402e61 91016003 (f9402c00) [232066.603284] SMP: stopping secondary CPUs [232066.606936] Starting crashdump kernel... [232066.607146] Bye! Analysing the vmcore, we know that nfs4_copy_state listed by destination nfs_server->ss_copies was added by the field copies in handle_async_copy(), and we found a waiting copy process with the stack as: PID: 3511963 TASK: ffff710028b47e00 CPU: 0 COMMAND: "cp" #0 [ffff8001116ef740] __switch_to at ffff8000081b92f4 #1 [ffff8001116ef760] __schedule at ffff800008dd0650 #2 [ffff8001116ef7c0] schedule at ffff800008dd0a00 #3 [ffff8001116ef7e0] schedule_timeout at ffff800008dd6aa0 #4 [ffff8001116ef860] __wait_for_common at ffff800008dd166c #5 [ffff8001116ef8e0] wait_for_completion_interruptible at ffff800008dd1898 #6 [ffff8001116ef8f0] handle_async_copy at ffff8000055142f4 [nfsv4] #7 [ffff8001116ef970] _nfs42_proc_copy at ffff8000055147c8 [nfsv4] #8 [ffff8001116efa80] nfs42_proc_copy at ffff800005514cf0 [nfsv4] #9 [ffff8001116efc50] __nfs4_copy_file_range.constprop.0 at ffff8000054ed694 [nfsv4] The NULL-pointer dereference was due to nfs42_complete_copies() listed the nfs_server->ss_copies by the field ss_copies of nfs4_copy_state. So the nfs4_copy_state address ffff0100f98fa3f0 was offset by 0x10 and the data accessed through this pointer was also incorrect. Generally, the ordered list nfs4_state_owner->so_states indicate open(O_RDWR) or open(O_WRITE) states are reclaimed firstly by nfs4_reclaim_open_state(). When destination state reclaim is failed with NFS_STATE_RECOVERY_FAILED and copies are not deleted in nfs_server->ss_copies, the source state may be passed to the nfs42_complete_copies() process earlier, resulting in this crash scene finally. To solve this issue, we add a list_head nfs_server->ss_src_copies for a server-to-server copy specially. Fixes: 0e65a32 ("NFS: handle source server reboot") Signed-off-by: Yanjun Zhang <[email protected]> Reviewed-by: Trond Myklebust <[email protected]> Signed-off-by: Anna Schumaker <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
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Hello. I tried to compile this branch on ubuntu 24.10 raspberry pi 5 and I keep getting I am not sure where this function comes from or I could probably patch this in. I almost forgot to add the obligatory image of the "Mac Pi Pro A1186" |
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Status update on that, I'm getting the same issue on rasberry pi os 64 bit
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@jordan4ibanez - The latest steps to get everything working are in geerlingguy/raspberry-pi-pcie-devices#680 now — I haven't kept this branch up to date, though it could still work, I just haven't re-tested in a couple months. The other branch has all the latest work. |
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Thank you |
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i resolved the latest conflicts and pushed a branch that can be used for patching or cloning: nicholasaiello#1 the recent @Coreforge patches work great w/ my VisionTek AMD Radeon HD 7750, including w/ Vulkan + Llama.cpp — just follow the steps that @geerlingguy has shared. 
i updated the branch w/ the latest changes this AM, as i'm doing a clean install to re-test the VisionTek card, and then swap it out for a Radeon RX 7900 XT (hopefully later tonight) |
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Note, this needs a rebase on current upstream rpi-6.6.y to support the new NUMA emulation / SDRAM tweaks on the Pi 5... haven't done that yet but may soon (I have it local but have a very messed up git checkout there lol). |
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I rebased my branch |
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Using this over #7 - see geerlingguy/raspberry-pi-pcie-devices#564
Source for commits: https://github.com/Coreforge/linux/tree/rpi-6.6.y-gpu