XPost: linux.debian.bugs.dist, linux.kernel   
   From: benoit.panizzon@imp.ch   
      
   Hi Salvatore   
      
   > Can you still reproduce this with a more current 6.12.y version? Can   
   > you test as well the newest version of the 6.16.y version (even there   
   > was a major refactoring to see if it affects only the 6.12.y series)?   
      
   Sorry for the delay.   
      
   6.16 from experimental is working finde.   
      
   Just booted into:   
      
   6.12.48+deb13-amd64   
      
   /home on nfs - claws-mail / chromium so lots of small i/o   
      
   NFS server is: FreeBSD 13.2-RELEASE-p1   
      
   nfshome:/home on /home type nfs (rw,relatime,vers=3,rsize=8192,w   
   ize=8192,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,m   
   untaddr=x.x.x.x,mountvers=3,mountport=689,mountproto=tcp,fsc,loc   
   l_lock=none,addr=x.x.x.x)   
      
      
   And after a couple of minutes I get:   
      
   [Di Okt  7 13:03:30 2025] netfs: Can't donate prior to front   
   [Di Okt  7 13:03:30 2025] R=000017d2[10] s=da000-dbfff 0/2000/2000   
   [Di Okt  7 13:03:30 2025] folio: d8000-dbfff   
   [Di Okt  7 13:03:30 2025] donated: prev=0 next=0   
   [Di Okt  7 13:03:30 2025] s=da000 av=2000 part=2000   
   [Di Okt  7 13:03:30 2025] ------------[ cut here ]------------   
   [Di Okt  7 13:03:30 2025] kernel BUG at fs/netfs/read_collect.c:316!   
   [Di Okt  7 13:03:30 2025] Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI   
   [Di Okt  7 13:03:30 2025] CPU: 14 UID: 0 PID: 121 Comm: kworker/u64:7 Not   
   tainted 6.12.48+deb13-amd64 #1  Debian 6.12.48-1   
   [Di Okt  7 13:03:30 2025] Hardware name: LENOVO 11JN000JGE/32E4, BIOS M47KT26A   
   11/23/2022   
   [Di Okt  7 13:03:30 2025] Workqueue: nfsiod rpc_async_release [sunrpc]   
   [Di Okt  7 13:03:30 2025] RIP: 0010:netfs_consume_read_data.isra.0+0xb79/0xb80   
   [netfs]   
   [Di Okt  7 13:03:30 2025] Code: 48 89 ea 31 f6 48 c7 c7 96 d5 61 c2 e8 30 8e   
   7f d2 48 8b 4c 24 10 4c 89 fe 48 8b 54 24 20 48 c7 c7 b2 d5 61 c2 e8 17 8e 7f   
   d2 <0f> 0b 90 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90   
   [Di Okt  7 13:03:30 2025] RSP: 0018:ffff97b3c05abd58 EFLAGS: 00010246   
   [Di Okt  7 13:03:30 2025] RAX: 0000000000000019 RBX: ffff8c071b60cfc0 RCX:   
   0000000000000027   
   [Di Okt  7 13:03:30 2025] RDX: 0000000000000000 RSI: 0000000000000001 RDI:   
   ffff8c098e921780   
   [Di Okt  7 13:03:30 2025] RBP: 0000000000000000 R08: 0000000000000000 R09:   
   ffff97b3c05abbe8   
   [Di Okt  7 13:03:30 2025] R10: ffffffff95eb43a8 R11: 0000000000000003 R12:   
   ffff8c06c6c23168   
   [Di Okt  7 13:03:30 2025] R13: 0000000000004000 R14: ffff8c06c6c23168 R15:   
   00000000000da000   
   [Di Okt  7 13:03:30 2025] FS:  0000000000000000(0000) GS:ffff8c0   
   8e900000(0000) knlGS:0000000000000000   
   [Di Okt  7 13:03:30 2025] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033   
   [Di Okt  7 13:03:30 2025] CR2: 00007efd8421a000 CR3: 000000019b756000 CR4:   
   0000000000f50ef0   
   [Di Okt  7 13:03:30 2025] PKRU: 55555554   
   [Di Okt  7 13:03:30 2025] Call Trace:   
   [Di Okt  7 13:03:30 2025]     
   [Di Okt  7 13:03:30 2025]  netfs_read_subreq_terminated+0x2ab/0x3e0 [netfs]   
   [Di Okt  7 13:03:30 2025]  nfs_netfs_read_completion+0x9c/0xc0 [nfs]   
   [Di Okt  7 13:03:30 2025]  nfs_read_completion+0xf6/0x130 [nfs]   
   [Di Okt  7 13:03:30 2025]  rpc_free_task+0x39/0x60 [sunrpc]   
   [Di Okt  7 13:03:30 2025]  rpc_async_release+0x2f/0x40 [sunrpc]   
   [Di Okt  7 13:03:30 2025]  process_one_work+0x177/0x330   
   [Di Okt  7 13:03:30 2025]  worker_thread+0x251/0x390   
   [Di Okt  7 13:03:30 2025]  ? __pfx_worker_thread+0x10/0x10   
   [Di Okt  7 13:03:30 2025]  kthread+0xd2/0x100   
   [Di Okt  7 13:03:30 2025]  ? __pfx_kthread+0x10/0x10   
   [Di Okt  7 13:03:30 2025]  ret_from_fork+0x34/0x50   
   [Di Okt  7 13:03:30 2025]  ? __pfx_kthread+0x10/0x10   
   [Di Okt  7 13:03:30 2025]  ret_from_fork_asm+0x1a/0x30   
   [Di Okt  7 13:03:30 2025]     
   [Di Okt  7 13:03:30 2025] Modules linked in: cachefiles nfsv3 rpcsec_gss_krb5   
   nfsv4 dns_resolver nfs netfs nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack   
   nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables libcrc32c wireguard   
   libchacha20poly1305 chacha_   
   x86_64 poly1305_x86_64 curve25519_x86_64 libcurve25519_generic libchacha vxlan   
   ip6_udp_tunnel udp_tunnel bridge stp llc btusb btrtl btintel btbcm btmtk   
   bluetooth joydev qrtr nfsd auth_rpcgss binfmt_misc nfs_acl lockd grace   
   nls_ascii nls_cp437 sunrpc vfat    
   fat amd_atl intel_rapl_msr intel_rapl_common rtw88_8822ce rtw88_8822c   
   edac_mce_amd rtw88_pci snd_sof_amd_rembrandt rtw88_core kvm_amd    
   nd_sof_amd_acp snd_sof_pci snd_sof_xtensa_dsp mac80211 snd_hda_codec_realtek   
   snd_sof kvm snd_hda_codec_generic snd_sof_   
   utils snd_hda_scodec_component snd_hda_codec_hdmi snd_soc_core snd_hda_intel   
   snd_intel_dspcfg libarc4 snd_compress irqbypass snd_intel_sdw_acpi   
   snd_pcm_dmaengine crct10dif_pclmul snd_hda_codec snd_pci_ps ghas   
   _clmulni_intel snd_rpl_pci_acp6x cfg80211    
   sha512_ssse3 snd_hda_core   
      
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