Bug 2020759
| Summary: | [abrt] dma_alloc_noncontiguous: WARNING: CPU: 0 PID: 1429 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x32a/0x380 | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ahmed Nabil <ahmed0faraj> | ||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||
| Status: | NEW --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | rawhide | CC: | acaringi, adscvr, airlied, alciregi, avraham.tsaban, awilliam, bskeggs, bugzilla, gmarr, hdegoede, jarodwilson, jeremy, jglisse, jonathan, josef, kernel-maint, lgoncalv, linville, lnie, lruzicka, masami256, mchehab, porcelialaniz, ptalbert, rai.neeraj510, robatino, steved, tomasz.szymanski, yann | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Unspecified | ||||||
| URL: | https://retrace.fedoraproject.org/faf/reports/bthash/b24187e65c57c29ffacfe0b20d62bd3c850e6397 | ||||||
| Whiteboard: | abrt_hash:31d4d17af23a4088278a89f298d9c5578189b926;VARIANT_ID=workstation; RejectedBlocker | ||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | Type: | --- | |||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Description
Ahmed Nabil
2021-11-05 19:59:53 UTC
Created attachment 1840311 [details]
File: dmesg
Description of problem: gui just not startted after installing fresh kernel from rawhaide Version-Release number of selected component: kernel-core-5.16.0-0.rc0.20211104git7ddb58cb0eca.3.fc36 Additional info: reporter: libreport-2.15.2 cmdline: ro root=UUID=b5c09182-b455-4701-a5b1-13742013a6dc initrd=boot\initramfs-5.16.0-0.rc0.20211104git7ddb58cb0eca.3.fc36.x86_64.img crash_function: dma_alloc_noncontiguous kernel: 5.16.0-0.rc0.20211104git7ddb58cb0eca.3.fc36.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: #1 [TASK] dma_alloc_noncontiguous #2 [TASK] snd_dma_noncontig_alloc in snd_pcm #3 [TASK] snd_dma_alloc_dir_pages in snd_pcm #4 [TASK] do_alloc_pages in snd_pcm #5 [TASK] snd_pcm_lib_malloc_pages in snd_pcm #6 [TASK] snd_pcm_hw_params in snd_pcm #7 [TASK] ? _copy_from_user #8 [TASK] snd_pcm_common_ioctl in snd_pcm #9 [TASK] ? lock_release #10 [TASK] ? security_file_ioctl Description of problem: See this crash immediately after boot into the newly installed system Version-Release number of selected component: kernel-core-5.16.0-0.rc0.20211112git5833291ab6de.12.fc36 Additional info: reporter: libreport-2.15.2 cmdline: BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 root=UUID=a418b858-98dd-48da-95b7-e365030ca16c ro rootflags=subvol=root rhgb quiet crash_function: dma_alloc_noncontiguous kernel: 5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 runlevel: unknown type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 1054 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x32a/0x380 Modules linked in: snd_seq_dummy snd_hrtimer nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr sunrpc intel_rapl_msr intel_rapl_common kvm_intel kvm snd_hda_codec_generic ledtrig_audio snd_hda_intel iTCO_wdt intel_pmc_bxt snd_intel_dspcfg iTCO_vendor_support snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_seq irqbypass snd_seq_device snd_pcm snd_timer joydev pcspkr i2c_i801 i2c_smbus snd soundcore lpc_ich virtio_balloon zram ip_tables crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel serio_raw qxl virtio_blk virtio_console drm_ttm_helper virtio_net net_failover failover ttm qemu_fw_cfg ipmi_devintf ipmi_msghandler fuse CPU: 0 PID: 1054 Comm: wireplumber Not tainted 5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 RIP: 0010:debug_dma_map_sg+0x32a/0x380 Code: 24 18 48 8b 54 24 20 44 8b 44 24 28 48 89 c6 4c 8b 4c 24 30 48 c7 c7 80 07 83 8f 4c 89 4c 24 18 4c 89 5c 24 10 e8 92 d4 c3 00 <0f> 0b 4c 8b 4c 24 18 4c 8b 5c 24 10 8b 15 e4 b6 2f 02 85 d2 0f 85 RSP: 0018:ffff9ef68175bcb0 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff8aa802b0b0d0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8f88f458 RDI: 00000000ffffffff RBP: ffff8aa83236a220 R08: 0000000000000000 R09: ffff9ef68175baf0 R10: ffff9ef68175bae8 R11: ffffffff90165e48 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff8aa80189ee80 FS: 00007f986e8c9800(0000) GS:ffff8aa87d600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98612e6000 CR3: 0000000032242003 CR4: 0000000000370ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> dma_alloc_noncontiguous+0x8b/0x1d0 snd_dma_noncontig_alloc+0x27/0x90 [snd_pcm] snd_dma_alloc_dir_pages+0x4e/0x80 [snd_pcm] do_alloc_pages+0x49/0x90 [snd_pcm] snd_pcm_lib_malloc_pages+0xe4/0x1f0 [snd_pcm] snd_pcm_hw_params+0x4de/0x5c0 [snd_pcm] ? _copy_from_user+0x65/0xa0 snd_pcm_common_ioctl+0x1f3/0x13e0 [snd_pcm] ? lock_release+0x13b/0x460 ? security_file_ioctl+0x2f/0x50 snd_pcm_ioctl+0x23/0x30 [snd_pcm] __x64_sys_ioctl+0x7f/0xb0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f986ed950fb Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 2c 0f 00 f7 d8 64 89 01 48 RSP: 002b:00007fffc72dbe68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fffc72dbf70 RCX: 00007f986ed950fb RDX: 00007fffc72dbf70 RSI: 00000000c2604111 RDI: 0000000000000021 RBP: 000055f0d9a47080 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 000055f0d9a49fc0 R13: 00007fffc72dc1e0 R14: 00007f985e3600b0 R15: 00007fffc72dbf70 </TASK> irq event stamp: 126181 hardirqs last enabled at (126187): [<ffffffff8e178aa0>] __up_console_sem+0x60/0x70 hardirqs last disabled at (126192): [<ffffffff8e178a85>] __up_console_sem+0x45/0x70 softirqs last enabled at (125160): [<ffffffff8e0f2337>] __irq_exit_rcu+0x107/0x170 softirqs last disabled at (124923): [<ffffffff8e0f2337>] __irq_exit_rcu+0x107/0x170 Description of problem: Happens on clean boot and install of current Rawhide Workstation live in a typical qemu VM. Version-Release number of selected component: kernel-core-5.16.0-0.rc0.20211112git5833291ab6de.12.fc36 Additional info: reporter: libreport-2.15.2 cmdline: BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 root=UUID=d6d57078-7022-41c0-8811-f4c047261b3e ro rootflags=subvol=root rhgb quiet crash_function: dma_alloc_noncontiguous kernel: 5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 runlevel: unknown type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 1079 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x32a/0x380 Modules linked in: snd_seq_dummy snd_hrtimer nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr sunrpc intel_rapl_msr intel_rapl_common kvm_intel snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep kvm snd_seq iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_seq_device snd_pcm irqbypass rapl joydev snd_timer snd pcspkr i2c_i801 i2c_smbus soundcore lpc_ich virtio_balloon zram ip_tables crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel serio_raw virtio_console virtio_net sym53c8xx virtio_gpu virtio_blk scsi_transport_spi net_failover virtio_dma_buf failover qemu_fw_cfg ipmi_devintf ipmi_msghandler fuse CPU: 0 PID: 1079 Comm: wireplumber Not tainted 5.16.0-0.rc0.20211112git5833291ab6de.12.fc36.x86_64 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-6.fc36 04/01/2014 RIP: 0010:debug_dma_map_sg+0x32a/0x380 Code: 24 18 48 8b 54 24 20 44 8b 44 24 28 48 89 c6 4c 8b 4c 24 30 48 c7 c7 80 07 83 9b 4c 89 4c 24 18 4c 89 5c 24 10 e8 92 d4 c3 00 <0f> 0b 4c 8b 4c 24 18 4c 8b 5c 24 10 8b 15 e4 b6 2f 02 85 d2 0f 85 RSP: 0018:ffffbadd026ebcb0 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff9b1cc1b310d0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff9b88f458 RDI: 00000000ffffffff RBP: ffff9b1ce377c940 R08: 0000000000000000 R09: ffffbadd026ebaf0 R10: ffffbadd026ebae8 R11: ffffffff9c165e48 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff9b1cc08c9380 FS: 00007f72c2268800(0000) GS:ffff9b1d3b600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f72b4c85000 CR3: 0000000123674005 CR4: 0000000000370ef0 Call Trace: <TASK> dma_alloc_noncontiguous+0x8b/0x1d0 snd_dma_noncontig_alloc+0x27/0x90 [snd_pcm] snd_dma_alloc_dir_pages+0x4e/0x80 [snd_pcm] do_alloc_pages+0x49/0x90 [snd_pcm] snd_pcm_lib_malloc_pages+0xe4/0x1f0 [snd_pcm] snd_pcm_hw_params+0x4de/0x5c0 [snd_pcm] ? _copy_from_user+0x65/0xa0 snd_pcm_common_ioctl+0x1f3/0x13e0 [snd_pcm] ? lock_release+0x13b/0x460 ? security_file_ioctl+0x32/0x50 snd_pcm_ioctl+0x23/0x30 [snd_pcm] __x64_sys_ioctl+0x82/0xb0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f72c27341bb Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 1c 0f 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe0ce341c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffe0ce342d0 RCX: 00007f72c27341bb RDX: 00007ffe0ce342d0 RSI: 00000000c2604111 RDI: 0000000000000021 RBP: 0000559925daead0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000559925e5bb30 R13: 00007ffe0ce34540 R14: 00007f72b1ced0b0 R15: 00007ffe0ce342d0 </TASK> irq event stamp: 132857 hardirqs last enabled at (132863): [<ffffffff9a178aa0>] __up_console_sem+0x60/0x70 hardirqs last disabled at (132868): [<ffffffff9a178a85>] __up_console_sem+0x45/0x70 softirqs last enabled at (131618): [<ffffffff9a0f2337>] __irq_exit_rcu+0x107/0x170 softirqs last disabled at (131063): [<ffffffff9a0f2337>] __irq_exit_rcu+0x107/0x170 Proposing as an F36 Final blocker as a violation of criterion "There must be no SELinux denial notifications or crash notifications on boot of or during installation from a release-blocking live image, or at first login after a default install of a release-blocking desktop." - this shows up as a crash notification on first boot of a default install of Workstation or KDE. *** Bug 2026327 has been marked as a duplicate of this bug. *** Discussed during the 2022-02-07 blocker review meeting: [0] The decision to classify this bug as an "AcceptedBlocker (Final)" was made as it violates the following criterion: "There must be no SELinux denial notifications or crash notifications on boot of or during installation from a release-blocking live image, or at first login after a default install of a release-blocking desktop." [0] https://meetbot.fedoraproject.org/fedora-blocker-review/2022-02-07/f36-blocker-review.2022-02-07-17.00.txt Description of problem: I really do not know how to describe this error. Simply computer is running, gnome is running. I do not see any impact on what I do with Fedora 36. Version-Release number of selected component: kernel-core-5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37 Additional info: reporter: libreport-2.16.0 cmdline: BOOT_IMAGE=(hd1,gpt3)/vmlinuz-5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37.x86_64 root=UUID=aea32c25-71dc-4a5e-a37a-cecffdd5e97d ro rootflags=subvol=root rhgb quiet crash_function: dma_alloc_noncontiguous kernel: 5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: #1 [TASK] dma_alloc_noncontiguous #2 [TASK] snd_dma_noncontig_alloc in snd_pcm #3 [TASK] snd_dma_alloc_dir_pages in snd_pcm #4 [TASK] do_alloc_pages in snd_pcm #5 [TASK] snd_pcm_lib_malloc_pages in snd_pcm #6 [TASK] snd_pcm_hw_params in snd_pcm #7 [TASK] ? _copy_from_user #8 [TASK] snd_pcm_common_ioctl in snd_pcm #9 [TASK] ? lock_release #10 [TASK] ? security_file_ioctl Description of problem: Appears within ten minutes of startup of current Rawhide Workstation live boot, and first boot of freshly installed system, in openQA testing. Version-Release number of selected component: kernel-core-5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37 Additional info: reporter: libreport-2.16.0 cmdline: BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37.x86_64 root=UUID=55d3db8e-41aa-4e83-87bc-c746bd65a12f ro rootflags=subvol=root rhgb quiet crash_function: dma_alloc_noncontiguous kernel: 5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37.x86_64 runlevel: unknown type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 997 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x328/0x380 Modules linked in: snd_seq_dummy snd_hrtimer nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr sunrpc snd_hda_codec_generic ledtrig_audio ppdev snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec joydev snd_hda_core pcspkr snd_hwdep snd_seq snd_seq_device parport_pc parport snd_pcm snd_timer i2c_piix4 snd soundcore zram crc32c_intel virtio_gpu serio_raw virtio_console virtio_blk virtio_scsi virtio_net net_failover failover virtio_dma_buf ata_generic pata_acpi qemu_fw_cfg ipmi_devintf ipmi_msghandler fuse CPU: 0 PID: 997 Comm: wireplumber Not tainted 5.17.0-0.rc3.20220211gitf1baf68e1383.93.fc37.x86_64 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 RIP: 0010:debug_dma_map_sg+0x328/0x380 Code: 4c 24 10 8b 4c 24 18 48 8b 54 24 20 48 89 c6 44 8b 44 24 2c 48 c7 c7 c0 eb 83 90 4c 89 4c 24 10 4c 89 5c 24 08 e8 29 e5 c5 00 <0f> 0b 4c 8b 4c 24 10 4c 8b 5c 24 08 8b 15 26 2d 30 02 85 d2 0f 85 RSP: 0018:ffff98cd41e4bcc0 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff8d66c2ae30d0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff9089f028 RDI: 00000000ffffffff RBP: ffff8d66f6f84a00 R08: 0000000000000000 R09: ffff98cd41e4baf8 R10: ffff98cd41e4baf0 R11: ffffffff91165128 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff8d66c18a8d00 FS: 00007f7e25ccc800(0000) GS:ffff8d673d600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e265ee000 CR3: 000000002e614000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> dma_alloc_noncontiguous+0x154/0x1b0 snd_dma_noncontig_alloc+0x23/0x70 [snd_pcm] snd_dma_alloc_dir_pages+0x50/0x80 [snd_pcm] do_alloc_pages+0x49/0x90 [snd_pcm] snd_pcm_lib_malloc_pages+0xe9/0x1d0 [snd_pcm] snd_pcm_hw_params+0x4dd/0x5c0 [snd_pcm] ? _copy_from_user+0x63/0xa0 snd_pcm_common_ioctl+0x1eb/0x1300 [snd_pcm] ? lock_release+0x13b/0x460 ? security_file_ioctl+0x3c/0x50 snd_pcm_ioctl+0x23/0x30 [snd_pcm] __x64_sys_ioctl+0x8c/0xc0 do_syscall_64+0x3a/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7e261a3b5f Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00 RSP: 002b:00007ffdd8c0e400 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffdd8c0e550 RCX: 00007f7e261a3b5f RDX: 00007ffdd8c0e550 RSI: 00000000c2604111 RDI: 0000000000000021 RBP: 00007f7e27d74500 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007f7e27ce0d90 R13: 00007ffdd8c0e7c0 R14: 00007ffdd8c0eda0 R15: 00007ffdd8c0e550 </TASK> irq event stamp: 122111 hardirqs last enabled at (122117): [<ffffffff8f178880>] __up_console_sem+0x60/0x70 hardirqs last disabled at (122122): [<ffffffff8f178865>] __up_console_sem+0x45/0x70 softirqs last enabled at (121518): [<ffffffff8f0f1703>] __irq_exit_rcu+0xf3/0x170 softirqs last disabled at (121511): [<ffffffff8f0f1703>] __irq_exit_rcu+0xf3/0x170 At Justin's suggestion I cross-compared records of when the openQA test passes or fails with kernel package changes in Rawhide. It looks like this bug happens when Rawhide has a debug kernel, but doesn't happen when it's on a non-debug kernel. So, seems like this oops is only raised on debug kernels. On that basis I'm withdrawing the blocker status/nomination since we would not ship a debug kernel to a stable release, we only ship them on pre-releases, so this doesn't need to block a release. It'd still be nice to have it fixed, though. Ahh ok I think this is a dup of bug 2054466 and I did file an upstream bug, they're looking into it. you mean 2054466 is a dupe of this? Since this is 30,000 bugs older...:D Well I shopped it upstream and got someone's attention and patches :D But also, the warnings aren't identical between the two bugs: This one: WARNING: CPU: 0 PID: 997 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x328/0x380 bug 2054466 [ 15.267615] DMA-API: sof-audio-pci-intel-cnl 0000:00:1f.3: mapping sg segment longer than device claims to support [len=540672] [max=65536] [ 15.269962] WARNING: CPU: 0 PID: 5 at kernel/dma/debug.c:1162 debug_dma_map_sg+0x328/0x380 Based on https://github.com/thesofproject/linux/issues/3430#issuecomment-1039942123 it sounds like the issue is in the two drivers I reported, not in dma/debug.c - I can't tell what's triggering the problem in this bug report because it doesn't have a line preceding the warning. I'm not sure why. Maybe if folks can retest with 5.17.0-rc4+debug maybe there'd be more to go on? OK from the attached dmesg there is a line preceding the warning: [ 68.725381] DMA-API: snd_hda_intel 0000:00:1b.0: mapping sg segment longer than device claims to support [len=73728] [max=65536] That is the legacy driver, per the upstream bug. And the problem happens in both snd_hda_intel and the newer sof-audio-pci-intel-cnl driver reported in bug 2054466. Both drivers are being fixed, and in effect the two bugs are the same. The decision to classify this bug as a "RejectedBlocker (Final)" was made based off votes here: [0] [0] https://pagure.io/fedora-qa/blocker-review/issue/580 |