Re: Virtio Net driver crash in latest version of kernel 6.8.4>

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On Sat, May 4, 2024 at 3:32 PM Martin Zaharinov <micron10@xxxxxxxxx> wrote:
>
> Hi all
>
> This is bug report with lastes version of kernel 6.8.4 > start getting this crash .

How did you reproduce this and Could you reproduce this with the
latest net.git? (I have a smoking test on net.git and it doesn't seem
to trigger).

Thanks

>
> If any find fix patch please add me.
>
> May  4 09:22:50 [  257.064343][    C5] BUG: unable to handle page fault for address: ffff889c54c225c0
> May  4 09:22:50 [  257.064923][    C5] #PF: supervisor write access in kernel mode
> May  4 09:22:50 [  257.064923][    C5] #PF: error_code(0x0003) - permissions violation
> May  4 09:22:50 [  257.064923][    C5] PGD 255c01067 P4D 255c01067 PUD 10008b063 PMD 8000000254c001a1
> May  4 09:22:50 [  257.064923][    C5] Oops: 0003 [#1] SMP
> May  4 09:22:50 [  257.064923][    C5] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G           O       6.8.9 #1
> May  4 09:22:50 [  257.064923][    C5] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014
> May  4 09:22:50 [  257.064923][    C5] RIP: 0010:__build_skb_around+0x87/0x100
> May  4 09:22:50 [  257.064923][    C5] Code: 24 b8 00 00 00 66 41 89 94 24 b2 00 00 00 66 41 89 8c 24 ae 00 00 00 65 8b 15 d1 ae 86 58 48 01 d8 66 41 89 94 24 86 00 00 00 <48> c7 00 00 00 00 00 48 c7 40 08 00 00 00 00 48 c7 40 10 00 00 00
> May  4 09:22:50 [  257.064923][    C5] RSP: 0018:ffffa012c021cc58 EFLAGS: 00010286
> May  4 09:22:50 [  257.064923][    C5] RAX: ffff889c54c225c0 RBX: ffff889b54c22800 RCX: 00000000ffffffff
> May  4 09:22:50 [  257.064923][    C5] RDX: 0000000000000005 RSI: ffff889b54c22800 RDI: ffff889b03273800
> May  4 09:22:50 [  257.064923][    C5] RBP: 00000000000001c0 R08: 0000000000000000 R09: 000000000000000c
> May  4 09:22:50 [  257.064923][    C5] R10: 0000000000000002 R11: 0000000000000800 R12: ffff889b03273800
> May  4 09:22:50 [  257.064923][    C5] R13: ffff889b00e52e48 R14: 00000000000000c0 R15: ffff889c77d62fa0
> May  4 09:22:50 [  257.064923][    C5] FS:  0000000000000000(0000) GS:ffff889c77d40000(0000) knlGS:0000000000000000
> May  4 09:22:50 [  257.064923][    C5] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> May  4 09:22:50 [  257.081266][    C5] CR2: ffff889c54c225c0 CR3: 000000010e8b7000 CR4: 00000000003506f0
> May  4 09:22:50 [  257.081266][    C5] Call Trace:
> May  4 09:22:50 [  257.081266][    C5]  <IRQ>
> May  4 09:22:50 [  257.081266][    C5]  ? __die+0xe4/0xf0
> May  4 09:22:50 [  257.081266][    C5]  ? page_fault_oops+0x144/0x3e0
> May  4 09:22:50 [  257.081266][    C5]  ? search_exception_tables+0x42/0x50
> May  4 09:22:50 [  257.081266][    C5]  ? fixup_exception+0x1d/0x2d0
> May  4 09:22:50 [  257.081266][    C5]  ? exc_page_fault+0x92/0xa0
> May  4 09:22:50 [  257.081266][    C5]  ? asm_exc_page_fault+0x22/0x30
> May  4 09:22:50 [  257.081266][    C5]  ? __build_skb_around+0x87/0x100
> May  4 09:22:50 [  257.081266][    C5]  __napi_alloc_skb+0x1d8/0x3e0
> May  4 09:22:50 [  257.081266][    C5]  page_to_skb+0x19d/0x5d0 [virtio_net]
> May  4 09:22:50 [  257.081266][    C5]  receive_mergeable+0x10b/0x560 [virtio_net]
> May  4 09:22:50 [  257.081266][    C5]  receive_buf+0x4df/0xda0 [virtio_net]
> May  4 09:22:50 [  257.081266][    C5]  ? detach_buf_split+0xab/0x1a0 [virtio_ring]
> May  4 09:22:50 [  257.093416][    C5]  virtnet_poll+0x20b/0x690 [virtio_net]
> May  4 09:22:50 [  257.093416][    C5]  __napi_poll+0x20/0x190
> May  4 09:22:50 [  257.093416][    C5]  net_rx_action+0x29f/0x380
> May  4 09:22:50 [  257.093416][    C5]  __do_softirq+0xcd/0x1f8
> May  4 09:22:50 [  257.093416][    C5]  irq_exit_rcu+0x82/0xa0
> May  4 09:22:50 [  257.093416][    C5]  common_interrupt+0x7a/0xa0
> May  4 09:22:50 [  257.093416][    C5]  </IRQ>
> May  4 09:22:50 [  257.093416][    C5]  <TASK>
> May  4 09:22:50 [  257.093416][    C5]  asm_common_interrupt+0x22/0x40
> May  4 09:22:50 [  257.093416][    C5] RIP: 0010:default_idle+0xb/0x10
> May  4 09:22:50 [  257.093416][    C5] Code: 07 76 e7 48 89 07 49 c7 c0 08 00 00 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 72 ff ff ff cc cc cc cc eb 07 0f 00 2d 37 3a 3e 00 fb f4 <fa> c3 0f 1f 00 65 48 8b 04 25 40 38 02 00 f0 80 48 02 20 48 8b 10
> May  4 09:22:50 [  257.093416][    C5] RSP: 0018:ffffa012c00cfef0 EFLAGS: 00000206
> May  4 09:22:50 [  257.093416][    C5] RAX: ffff889c77d61268 RBX: 0000000000000005 RCX: 0000000000000000
> May  4 09:22:50 [  257.093416][    C5] RDX: 0000000000000000 RSI: 0000000000000083 RDI: 0000000000091294
> May  4 09:22:50 [  257.093416][    C5] RBP: ffff889b0032dd00 R08: 000000000001f340 R09: ffff889c77d5f340
> May  4 09:22:50 [  257.093416][    C5] R10: ffff889c77d5f340 R11: 0000000000100000 R12: 0000000000000000
> May  4 09:22:50 [  257.093416][    C5] R13: 0000000000000000 R14: ffff889b0032dd00 R15: 0000000000000000
> May  4 09:22:50 [  257.093416][    C5]  default_idle_call+0x1f/0x30
> May  4 09:22:50 [  257.093416][    C5]  do_idle+0x1df/0x210
> May  4 09:22:50 [  257.110747][    C5]  cpu_startup_entry+0x20/0x30
> May  4 09:22:50 [  257.110747][    C5]  start_secondary+0xe1/0xf0
> May  4 09:22:50 [  257.110747][    C5]  secondary_startup_64_no_verify+0x170/0x17b
> May  4 09:22:50 [  257.110747][    C5]  </TASK>
> May  4 09:22:50 [  257.110747][    C5] Modules linked in: xsk_diag unix_diag pppoe pppox ppp_generic slhc nf_conntrack_sip nf_conntrack_ftp nf_conntrack_pptp nft_ct nft_nat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables netconsole virtio_net net_failover failover virtio_pci virtio_pci_legacy_dev virtio_pci_modern_dev virtio virtio_ring vmxnet3 aesni_intel crypto_simd cryptd
> May  4 09:22:50 [  257.110747][    C5] CR2: ffff889c54c225c0
> May  4 09:22:50 [  257.110747][    C5] ---[ end trace 0000000000000000 ]---
> May  4 09:22:50 [  257.110747][    C5] RIP: 0010:__build_skb_around+0x87/0x100
> May  4 09:22:50 [  257.110747][    C5] Code: 24 b8 00 00 00 66 41 89 94 24 b2 00 00 00 66 41 89 8c 24 ae 00 00 00 65 8b 15 d1 ae 86 58 48 01 d8 66 41 89 94 24 86 00 00 00 <48> c7 00 00 00 00 00 48 c7 40 08 00 00 00 00 48 c7 40 10 00 00 00
> May  4 09:22:50 [  257.110747][    C5] RSP: 0018:ffffa012c021cc58 EFLAGS: 00010286
> May  4 09:22:50 [  257.110747][    C5] RAX: ffff889c54c225c0 RBX: ffff889b54c22800 RCX: 00000000ffffffff
> May  4 09:22:50 [  257.110747][    C5] RDX: 0000000000000005 RSI: ffff889b54c22800 RDI: ffff889b03273800
> May  4 09:22:50 [  257.110747][    C5] RBP: 00000000000001c0 R08: 0000000000000000 R09: 000000000000000c
> May  4 09:22:50 [  257.126458][    C5] R10: 0000000000000002 R11: 0000000000000800 R12: ffff889b03273800
> May  4 09:22:50 [  257.126458][    C5] R13: ffff889b00e52e48 R14: 00000000000000c0 R15: ffff889c77d62fa0
> May  4 09:22:50 [  257.126458][    C5] FS:  0000000000000000(0000) GS:ffff889c77d40000(0000) knlGS:0000000000000000
> May  4 09:22:50 [  257.126458][    C5] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> May  4 09:22:50 [  257.126458][    C5] CR2: ffff889c54c225c0 CR3: 000000010e8b7000 CR4: 00000000003506f0
> May  4 09:22:50 [  257.126458][    C5] Kernel panic - not syncing: Fatal exception in interrupt
> May  4 09:22:50 [  257.126458][    C5] Kernel Offset: 0x26000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> May  4 09:22:50 [  257.126458][    C5] Rebooting in 10 seconds..
>






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