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256 KiB atomic DMA coherent pool is too small! #170

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viric opened this issue Dec 2, 2012 · 7 comments
Closed

256 KiB atomic DMA coherent pool is too small! #170

viric opened this issue Dec 2, 2012 · 7 comments

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@viric
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viric commented Dec 2, 2012

Testing ff1c7e1, all boots fine, but vchiq is not there. I hadn't any gpu_mem related option in config.txt. I've tried gpu_mem=128, and gpu_mem_512=128, but nothing helps.

The kernel log:

...
[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0xf bcm2708.serial=0xe3e92703 smsc95xx.macaddr=B8:27:EB:E9:27:03 sdhci-bcm2708.emmc_clock_freq=100000000 vc_mem.mem_base=0x1c000000 vc_mem.mem_size=0x20000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 448MB = 448MB total
[    0.000000] Memory: 432232k/432232k available, 26520k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xdc800000 - 0xff000000   ( 552 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xdc000000   ( 448 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc04ee148   (5017 kB)
[    0.000000]       .init : 0xc04ef000 - 0xc050fce8   ( 132 kB)
[    0.000000]       .data : 0xc0510000 - 0xc0544220   ( 209 kB)
[    0.000000]        .bss : 0xc0544244 - 0xc05ec8f0   ( 674 kB)
...
[    1.048574] bcm2708_dma: DMA manager at f2007000
[    1.053365] bcm2708_gpio: bcm2708_gpio_probe c051dd78
[    1.058806] vc-mem: phys_addr:0x00000000 mem_base=0x1c000000 mem_size:0x20000000(512 MiB)
...
[    1.287093] vc-cma: Videocore CMA driver
[    1.293417] vc-cma: vc_cma_base      = 0x00000000
[    1.300418] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)
[    1.307943] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)
[    1.324796] brd: module loaded
[    1.335179] loop: module loaded
[    1.340826] ERROR: 256 KiB atomic DMA coherent pool is too small!
[    1.340826] Please increase it with coherent_pool= kernel parameter!
[    1.357266] vchiq: Unable to allocate channel memory
[    1.364563] vchiq: could not load vchiq
@simonjhall
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On my kit on the kernel command line I'm using "coherent_pool=6M".
EDIT: as per this http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=19334&start=125#p223549

@viric
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viric commented Dec 2, 2012

Ah clear. I had no idea where to look. Maybe some commit log should have mentioned that :)

@viric
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viric commented Dec 2, 2012

Maybe the defconfig could have that in the cmdline.

@Ferroin
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Ferroin commented Dec 2, 2012

This could also be fixed by adding the following to the default config:

CONFIG_CMA_SIZE_MBYTES=6
CONFIG_CMA_SIZE_SEL_MBYTES=y

The problem occurs because if you don't specify anything other than 'CONFIG_CMA=y', it defaults to using 10% of the available system memory.

@popcornmix
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@Ferroin
are you sure about those settings?
I believe the coherent_pool is different from CMA.
(specifically the coherent pool is needed for atomic allocations, which CMA can't provide).

@Ferroin
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Ferroin commented Dec 3, 2012

You're right, I was thinking about the cma= commandline paramater, not the coherent_pool.
Sorry for any confusion this might have caused.

@popcornmix
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Latest "next" firmware increases default coherent_pool to 4M, which makes vchiq init okay.
You may need to increase coherent_pool to 6M or more when CMA is enabled, but that is a different issue.

popcornmix pushed a commit that referenced this issue Jan 22, 2014
@avagin @davem330
virtio-net: determine type of bufs correctly
fa9fac1 
free_unused_bufs must check vi->mergeable_rx_bufs before
vi->big_packets, because we use this sequence in other places.
Otherwise we allocate buffer of one type, then free it as another
type.

general protection fault: 0000 [#1] SMP
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables pcspkr virtio_balloon virtio_net(-) i2c_pii
CPU: 0 PID: 400 Comm: rmmod Not tainted 3.13.0-rc2+ #170
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
task: ffff8800b6d2a210 ti: ffff8800aed32000 task.ti: ffff8800aed32000
RIP: 0010:[<ffffffffa00345f3>]  [<ffffffffa00345f3>] free_unused_bufs+0xc3/0x190 [virtio_net]
RSP: 0018:ffff8800aed33dd8  EFLAGS: 00010202
RAX: ffff8800b1fe2c00 RBX: ffff8800b66a7240 RCX: 6b6b6b6b6b6b6b6b
RDX: 6b6b6b6b6b6b6b6b RSI: ffff8800b8419a68 RDI: ffff8800b66a1148
RBP: ffff8800aed33e00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8800b66a1148 R14: 0000000000000000 R15: 000077ff80000000
FS:  00007fc4f9c4e740(0000) GS:ffff8800bfa00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f63f432f000 CR3: 00000000b6538000 CR4: 00000000000006f0
Stack:
 ffff8800b66a7240 ffff8800b66a7380 ffff8800377bd3f0 0000000000000000
 00000000023302f0 ffff8800aed33e18 ffffffffa00346e2 ffff8800b66a7240
 ffff8800aed33e38 ffffffffa003474d ffff8800377bd388 ffff8800377bd390
Call Trace:
 [<ffffffffa00346e2>] remove_vq_common+0x22/0x40 [virtio_net]
 [<ffffffffa003474d>] virtnet_remove+0x4d/0x90 [virtio_net]
 [<ffffffff813ae303>] virtio_dev_remove+0x23/0x80
 [<ffffffff813f62cf>] __device_release_driver+0x7f/0xf0
 [<ffffffff813f6c80>] driver_detach+0xc0/0xd0
 [<ffffffff813f5f08>] bus_remove_driver+0x58/0xd0
 [<ffffffff813f72cc>] driver_unregister+0x2c/0x50
 [<ffffffff813ae63e>] unregister_virtio_driver+0xe/0x10
 [<ffffffffa0036852>] virtio_net_driver_exit+0x10/0x7be [virtio_net]
 [<ffffffff810d7cf2>] SyS_delete_module+0x172/0x220
 [<ffffffff810a732d>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffff810f5d4c>] ? __audit_syscall_entry+0x9c/0xf0
 [<ffffffff81677f69>] system_call_fastpath+0x16/0x1b
Code: c0 74 55 0f 1f 44 00 00 80 7b 30 00 74 7a 48 8b 50 30 4c 89 e6 48 03 73 20 48 85 d2 0f 84 bb 00 00 00 66 0f
RIP  [<ffffffffa00345f3>] free_unused_bufs+0xc3/0x190 [virtio_net]
 RSP <ffff8800aed33dd8>
---[ end trace edb570ea923cce9c ]---

Fixes: 2613af0 (virtio_net: migrate mergeable rx buffers to page frag allocators)
Cc: Michael Dalton <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Signed-off-by: Andrey Vagin <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
@clivem clivem mentioned this issue Oct 30, 2016
Merged
popcornmix pushed a commit that referenced this issue Feb 13, 2017
@ickle @jnikula
drm/i915: Remove overzealous fence warn on runtime suspend
83bf6d5 
The goal of the WARN was to catch when we are still actively using the
fence as we go into the runtime suspend. However, the reg->pin_count is
too coarse as it does not distinguish between exclusive ownership of the
fence register from activity.

I've not improved on the WARN, nor have we captured this WARN in an
exact igt, but it is showing up regularly in the wild:

[ 1915.935332] WARNING: CPU: 1 PID: 10861 at drivers/gpu/drm/i915/i915_gem.c:2022 i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.935383] WARN_ON(reg->pin_count)[ 1915.935399] Modules linked in:
 snd_hda_intel i915 drm_kms_helper vgem netconsole scsi_transport_iscsi fuse vfat fat x86_pkg_temp_thermal coretemp intel_cstate intel_uncore snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mei_me mei serio_raw intel_rapl_perf intel_pch_thermal soundcore wmi acpi_pad i2c_algo_bit syscopyarea sysfillrect sysimgblt fb_sys_fops drm r8169 mii video [last unloaded: drm_kms_helper]
[ 1915.935785] CPU: 1 PID: 10861 Comm: kworker/1:0 Tainted: G     U  W       4.9.0-rc5+ #170
[ 1915.935799] Hardware name: LENOVO 80MX/Lenovo E31-80, BIOS DCCN34WW(V2.03) 12/01/2015
[ 1915.935822] Workqueue: pm pm_runtime_work
[ 1915.935845]  ffffc900044fbbf0 ffffffffac3220bc ffffc900044fbc40 0000000000000000
[ 1915.935890]  ffffc900044fbc30 ffffffffac059bcb 000007e6044fbc60 ffff8801626e3198
[ 1915.935937]  ffff8801626e0000 0000000000000002 ffffffffc05e5d4e 0000000000000000
[ 1915.935985] Call Trace:
[ 1915.936013]  [<ffffffffac3220bc>] dump_stack+0x4f/0x73
[ 1915.936038]  [<ffffffffac059bcb>] __warn+0xcb/0xf0
[ 1915.936060]  [<ffffffffac059c4f>] warn_slowpath_fmt+0x5f/0x80
[ 1915.936158]  [<ffffffffc052d916>] i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.936251]  [<ffffffffc04f1c74>] intel_runtime_suspend+0x64/0x280 [i915]
[ 1915.936277]  [<ffffffffac0926f1>] ? dequeue_entity+0x241/0xbc0
[ 1915.936298]  [<ffffffffac36bb85>] pci_pm_runtime_suspend+0x55/0x180
[ 1915.936317]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936339]  [<ffffffffac4514e2>] __rpm_callback+0x32/0x70
[ 1915.936356]  [<ffffffffac451544>] rpm_callback+0x24/0x80
[ 1915.936375]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936392]  [<ffffffffac45222d>] rpm_suspend+0x12d/0x680
[ 1915.936415]  [<ffffffffac69f6d7>] ? _raw_spin_unlock_irq+0x17/0x30
[ 1915.936435]  [<ffffffffac0810b8>] ? finish_task_switch+0x88/0x220
[ 1915.936455]  [<ffffffffac4534bf>] pm_runtime_work+0x6f/0xb0
[ 1915.936477]  [<ffffffffac074353>] process_one_work+0x1f3/0x4d0
[ 1915.936501]  [<ffffffffac074678>] worker_thread+0x48/0x4e0
[ 1915.936523]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936542]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936559]  [<ffffffffac07a2c9>] kthread+0xd9/0xf0
[ 1915.936580]  [<ffffffffac07a1f0>] ? kthread_park+0x60/0x60
[ 1915.936600]  [<ffffffffac69fe62>] ret_from_fork+0x22/0x30

In the case the register is pinned, it should be present and we will
need to invalidate them to be restored upon resume as we cannot expect
the owner of the pin to call get_fence prior to use after resume.

Fixes: 7c108fd ("drm/i915: Move fence cancellation to runtime suspend")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98804
Reported-by: Lionel Landwerlin <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: <[email protected]> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Joonas Lahtinen <[email protected]>
(cherry picked from commit e0ec3ec)
Signed-off-by: Jani Nikula <[email protected]>
anholt pushed a commit to anholt/linux that referenced this issue Apr 8, 2017
@ickle
drm/i915: Remove overzealous fence warn on runtime suspend
e0ec3ec 
The goal of the WARN was to catch when we are still actively using the
fence as we go into the runtime suspend. However, the reg->pin_count is
too coarse as it does not distinguish between exclusive ownership of the
fence register from activity.

I've not improved on the WARN, nor have we captured this WARN in an
exact igt, but it is showing up regularly in the wild:

[ 1915.935332] WARNING: CPU: 1 PID: 10861 at drivers/gpu/drm/i915/i915_gem.c:2022 i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.935383] WARN_ON(reg->pin_count)[ 1915.935399] Modules linked in:
 snd_hda_intel i915 drm_kms_helper vgem netconsole scsi_transport_iscsi fuse vfat fat x86_pkg_temp_thermal coretemp intel_cstate intel_uncore snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mei_me mei serio_raw intel_rapl_perf intel_pch_thermal soundcore wmi acpi_pad i2c_algo_bit syscopyarea sysfillrect sysimgblt fb_sys_fops drm r8169 mii video [last unloaded: drm_kms_helper]
[ 1915.935785] CPU: 1 PID: 10861 Comm: kworker/1:0 Tainted: G     U  W       4.9.0-rc5+ raspberrypi#170
[ 1915.935799] Hardware name: LENOVO 80MX/Lenovo E31-80, BIOS DCCN34WW(V2.03) 12/01/2015
[ 1915.935822] Workqueue: pm pm_runtime_work
[ 1915.935845]  ffffc900044fbbf0 ffffffffac3220bc ffffc900044fbc40 0000000000000000
[ 1915.935890]  ffffc900044fbc30 ffffffffac059bcb 000007e6044fbc60 ffff8801626e3198
[ 1915.935937]  ffff8801626e0000 0000000000000002 ffffffffc05e5d4e 0000000000000000
[ 1915.935985] Call Trace:
[ 1915.936013]  [<ffffffffac3220bc>] dump_stack+0x4f/0x73
[ 1915.936038]  [<ffffffffac059bcb>] __warn+0xcb/0xf0
[ 1915.936060]  [<ffffffffac059c4f>] warn_slowpath_fmt+0x5f/0x80
[ 1915.936158]  [<ffffffffc052d916>] i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.936251]  [<ffffffffc04f1c74>] intel_runtime_suspend+0x64/0x280 [i915]
[ 1915.936277]  [<ffffffffac0926f1>] ? dequeue_entity+0x241/0xbc0
[ 1915.936298]  [<ffffffffac36bb85>] pci_pm_runtime_suspend+0x55/0x180
[ 1915.936317]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936339]  [<ffffffffac4514e2>] __rpm_callback+0x32/0x70
[ 1915.936356]  [<ffffffffac451544>] rpm_callback+0x24/0x80
[ 1915.936375]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936392]  [<ffffffffac45222d>] rpm_suspend+0x12d/0x680
[ 1915.936415]  [<ffffffffac69f6d7>] ? _raw_spin_unlock_irq+0x17/0x30
[ 1915.936435]  [<ffffffffac0810b8>] ? finish_task_switch+0x88/0x220
[ 1915.936455]  [<ffffffffac4534bf>] pm_runtime_work+0x6f/0xb0
[ 1915.936477]  [<ffffffffac074353>] process_one_work+0x1f3/0x4d0
[ 1915.936501]  [<ffffffffac074678>] worker_thread+0x48/0x4e0
[ 1915.936523]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936542]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936559]  [<ffffffffac07a2c9>] kthread+0xd9/0xf0
[ 1915.936580]  [<ffffffffac07a1f0>] ? kthread_park+0x60/0x60
[ 1915.936600]  [<ffffffffac69fe62>] ret_from_fork+0x22/0x30

In the case the register is pinned, it should be present and we will
need to invalidate them to be restored upon resume as we cannot expect
the owner of the pin to call get_fence prior to use after resume.

Fixes: 7c108fd ("drm/i915: Move fence cancellation to runtime suspend")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98804
Reported-by: Lionel Landwerlin <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: <[email protected]> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Joonas Lahtinen <[email protected]>
popcornmix pushed a commit that referenced this issue Jan 29, 2024
@gregkh
test_bpf: Rename second ALU64_SMOD_X to ALU64_SMOD_K
a249518 
[ Upstream commit 5181dc0 ]

Currently, there are two test cases with same name
"ALU64_SMOD_X: -7 % 2 = -1", the first one is right,
the second one should be ALU64_SMOD_K because its
code is BPF_ALU64 | BPF_MOD | BPF_K.

Before:
test_bpf: #170 ALU64_SMOD_X: -7 % 2 = -1 jited:1 4 PASS
test_bpf: #171 ALU64_SMOD_X: -7 % 2 = -1 jited:1 4 PASS

After:
test_bpf: #170 ALU64_SMOD_X: -7 % 2 = -1 jited:1 4 PASS
test_bpf: #171 ALU64_SMOD_K: -7 % 2 = -1 jited:1 4 PASS

Fixes: daabb2b ("bpf/tests: add tests for cpuv4 instructions")
Signed-off-by: Tiezhu Yang <[email protected]>
Acked-by: Yonghong Song <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
popcornmix pushed a commit that referenced this issue Jun 12, 2024
@chleroy @gregkh
powerpc/bpf/32: Fix failing test_bpf tests
0d5c132 
[ Upstream commit 8ecf3c1 ]

Recent additions in BPF like cpu v4 instructions, test_bpf module
exhibits the following failures:

  test_bpf: #82 ALU_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times)
  test_bpf: #83 ALU_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times)
  test_bpf: #84 ALU64_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times)
  test_bpf: #85 ALU64_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times)
  test_bpf: #86 ALU64_MOVSX | BPF_W jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times)

  test_bpf: #165 ALU_SDIV_X: -6 / 2 = -3 jited:1 ret 2147483645 != -3 (0x7ffffffd != 0xfffffffd)FAIL (1 times)
  test_bpf: #166 ALU_SDIV_K: -6 / 2 = -3 jited:1 ret 2147483645 != -3 (0x7ffffffd != 0xfffffffd)FAIL (1 times)

  test_bpf: #169 ALU_SMOD_X: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times)
  test_bpf: #170 ALU_SMOD_K: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times)

  test_bpf: #172 ALU64_SMOD_K: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times)

  test_bpf: #313 BSWAP 16: 0x0123456789abcdef -> 0xefcd
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 301 PASS
  test_bpf: #314 BSWAP 32: 0x0123456789abcdef -> 0xefcdab89
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 555 PASS
  test_bpf: #315 BSWAP 64: 0x0123456789abcdef -> 0x67452301
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 268 PASS
  test_bpf: #316 BSWAP 64: 0x0123456789abcdef >> 32 -> 0xefcdab89
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 269 PASS
  test_bpf: #317 BSWAP 16: 0xfedcba9876543210 -> 0x1032
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 460 PASS
  test_bpf: #318 BSWAP 32: 0xfedcba9876543210 -> 0x10325476
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 320 PASS
  test_bpf: #319 BSWAP 64: 0xfedcba9876543210 -> 0x98badcfe
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 222 PASS
  test_bpf: #320 BSWAP 64: 0xfedcba9876543210 >> 32 -> 0x10325476
  eBPF filter opcode 00d7 (@2) unsupported
  jited:0 273 PASS

  test_bpf: #344 BPF_LDX_MEMSX | BPF_B
  eBPF filter opcode 0091 (@5) unsupported
  jited:0 432 PASS
  test_bpf: #345 BPF_LDX_MEMSX | BPF_H
  eBPF filter opcode 0089 (@5) unsupported
  jited:0 381 PASS
  test_bpf: #346 BPF_LDX_MEMSX | BPF_W
  eBPF filter opcode 0081 (@5) unsupported
  jited:0 505 PASS

  test_bpf: #490 JMP32_JA: Unconditional jump: if (true) return 1
  eBPF filter opcode 0006 (@1) unsupported
  jited:0 261 PASS

  test_bpf: Summary: 1040 PASSED, 10 FAILED, [924/1038 JIT'ed]

Fix them by adding missing processing.

Fixes: daabb2b ("bpf/tests: add tests for cpuv4 instructions")
Signed-off-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/91de862dda99d170697eb79ffb478678af7e0b27.1709652689.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <[email protected]>
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4 participants
@viric @Ferroin @popcornmix @simonjhall