Strange problems inside VM in proxmox

C

cshifer12

New Member
Jun 8, 2025
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I have latest proxmox and one VM debian 13 and another Arch Linux. In both not simultaniously i use usb devices and igpu with passthrough. About 1.5 month ago it started. Randomly chromium tabs crash, steam crashes, game crashes, other apps crash. This is the log from crash

Code: 
[181351.322120] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[181351.322132] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f4c10 trb-start 00000001086f4c00 trb-end 00000001086f4c00 seg-start 00000001086f4000 seg-end 00000001086f4ff0
[181414.746110] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[181414.746118] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f47e0 trb-start 00000001086f47b0 trb-end 00000001086f47b0 seg-start 00000001086f4000 seg-end 00000001086f4ff0
[181433.503064] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[181433.503073] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f42c0 trb-start 00000001086f4260 trb-end 00000001086f4260 seg-start 00000001086f4000 seg-end 00000001086f4ff0
[181494.399666] dod_linux64[86657]: segfault at 7f1f42efe5a0 ip 00007f1f0ec0fabb sp 00007ffd9b755410 error 6 in studiorender.so[fabb,7f1f0ec06000+a9000] likely on CPU 5 (core 5, socket 0)
[181494.399680] Code: f7 e4 8b 47 dc 44 01 c8 48 c1 ea 05 01 d0 48 8b 95 60 ff ff ff 48 98 48 8d 04 40 48 c1 e0 04 49 03 02 4d 85 db f3 0f 10 40 10 <f3> 0f 11 02 f3 0f 10 40 14 f3 0f 11 42 04 f3 0f 10 40 18 f3 0f 11
[183723.853503] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[183723.853518] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f3470 trb-start 00000001086f3460 trb-end 00000001086f3460 seg-start 00000001086f3000 seg-end 00000001086f3ff0
[183736.019840] dod_linux64[86986]: segfault at 3bc0580a3be0 ip 00007fd67e188e7c sp 00007ffd4b854520 error 4 in engine.so[588e7c,7fd67df62000+454000] likely on CPU 1 (core 1, socket 0)
[183736.019852] Code: 18 89 c1 01 f0 c1 e1 05 01 c1 89 c8 c1 f8 10 31 c1 81 e1 ff 01 00 00 48 c1 e1 04 4c 01 e9 48 8b 71 10 48 89 f0 48 85 c0 74 12 <44> 3b 30 0f 84 e3 00 00 00 48 8b 40 18 48 39 c6 75 e9 bf 20 00 00
[183740.823131] ThreadPoolForeg[86254]: segfault at 170000001708 ip 00007fca49e6ce39 sp 00007fca421fa820 error 6 in libcef.so[306be39,7fca49230000+a36b000] likely on CPU 1 (core 1, socket 0)
[183740.823144] Code: 00 5b 41 5c 41 5e 41 5f 5d e9 e3 65 fe ff cc cc cc 55 48 89 e5 41 57 41 56 53 50 41 89 f7 48 89 fb 4c 8d 77 08 b8 ff ff ff ff <f0> 0f c1 47 08 85 c0 7f 08 4c 89 f7 e8 36 66 fe ff 41 0f b6 f7 48
[183741.032949] ThreadPoolServi[87763]: segfault at 70ca3c0070a8 ip 00007fca460ab90b sp 00007fca429fc5c0 error 4 in libc.so.6[a190b,7fca46032000+165000] likely on CPU 7 (core 7, socket 0)
[183741.032960] Code: fd ff ff 43 8d 44 2d 00 48 81 fb ff 03 00 00 76 23 43 8d 44 2d 00 8d 50 0c 48 8d 54 d5 00 48 8b 0a 48 8d 72 f0 48 39 f1 74 0a <48> 39 59 08 0f 83 d7 06 00 00 44 89 e9 41 b9 01 00 00 00 4d 89 c5
[183780.066206] traps: chromium[85136] trap invalid opcode ip:556aa178be26 sp:7ffc43051280 error:0 in chromium[a550e26,556a998e2000+dbe9000]
[183805.801053] ThreadPoolForeg[87939]: segfault at 2a0274636e7b ip 0000556a9b41651e sp 00007f6f413224c0 error 4 in chromium[41db51e,556a998e2000+dbe9000] likely on CPU 2 (core 2, socket 0)
[183805.801063] Code: 48 09 c6 48 39 b5 48 ff ff ff 74 10 48 8d bd f8 fe ff ff e8 84 79 0d 00 0f 1f 40 00 4c 89 bd 88 fc ff ff 4c 8b 95 18 fd ff ff <41> 0f b6 45 06 3c 99 4c 89 95 10 fd ff ff 0f 87 62 9b 00 00 41 be
[183958.949823] traps: ServiceWorker t[88877] trap invalid opcode ip:556aa178be26 sp:7f6f46de9540 error:0 in chromium[a550e26,556a998e2000+dbe9000]
[184379.687042] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[184379.687065] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f33a0 trb-start 00000001086f3390 trb-end 00000001086f3390 seg-start 00000001086f3000 seg-end 00000001086f3ff0
[188068.133534] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[188068.133552] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f4ec0 trb-start 00000001086f4e90 trb-end 00000001086f4e90 seg-start 00000001086f4000 seg-end 00000001086f4ff0
[188123.285630] xhci_hcd 0000:07:1b.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 12 comp_code 13
[188123.285653] xhci_hcd 0000:07:1b.0: Looking for event-dma 00000001086f4100 trb-start 00000001086f40f0 trb-end 00000001086f40f0 seg-start 00000001086f4000 seg-end 00000001086f4ff0
[190860.122103] chromium[84874]: segfault at dcc6f700000 ip 0000556a9b51e6f1 sp 00007ffc4305a400 error 4 in chromium[42e36f1,556a998e2000+dbe9000] likely on CPU 4 (core 4, socket 0)
[190860.122126] Code: 0f 83 23 36 00 00 41 8b 14 24 81 fa 00 00 04 00 72 e7 f6 c2 01 74 e2 48 8d 05 e3 0b a4 0c 48 0b 10 48 89 d0 48 25 00 00 fc ff <f6> 00 18 74 ca 48 8b 7d 90 4c 89 e6 4c 89 c3 e8 7b 12 01 00 49 89
[191913.649396] chromium[91182]: segfault at 0 ip 0000556a9b42f52f sp 00007ffc4305c3e0 error 4 in chromium[41f452f,556a998e2000+dbe9000] likely on CPU 9 (core 9, socket 0)
[191913.649410] Code: c9 48 8b 0c f7 49 be ff ff ff ff ff ff 87 7f 4d 0f 45 f0 49 21 ce 41 f6 c6 01 0f 84 e1 00 00 00 4c 89 f1 48 81 e1 00 00 fc ff <48> 8b 31 f7 c6 40 02 00 00 0f 85 c8 00 00 00 40 f6 c6 01 0f 85 c3
[191914.209874] ThreadPoolForeg[91214]: segfault at 1474fff40000 ip 0000556a9b42d41b sp 00007f6edd326460 error 4 in chromium[41f241b,556a998e2000+dbe9000] likely on CPU 5 (core 5, socket 0)
[191914.209889] Code: 05 d2 1e b3 0c 48 0b 08 5d e9 01 00 00 00 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 cc 49 81 e4 00 00 fc ff <49> 8b 04 24 a9 40 02 00 00 74 0f 48 83 c4 28 5b 41 5c 41 5d 41 5e
[191918.991619] traps: ThreadPoolForeg[91238] general protection fault ip:556a9b2cec3c sp:7f6ede3274c0 error:0 in chromium[4093c3c,556a998e2000+dbe9000]
[191922.756352] traps: dod_linux64[88768] general protection fault ip:7f1d701ed135 sp:7fffe8c41e68 error:0 in libmimalloc.so[7135,7f1d701ec000+10000]
[192025.147683] traps: dod_linux64[91559] general protection fault ip:7f02fda9e135 sp:7fff4077bd38 error:0 in libmimalloc.so[7135,7f02fda9d000+10000]
[192068.178496] ThreadPoolForeg[91681]: segfault at 282a56dad060 ip 0000556a9bcca03e sp 00007f6f4353b3b0 error 4 likely on CPU 7 (core 7, socket 0)
[192068.178504] Code: 39 ef 75 98 eb bb 66 0f 1f 44 00 00 41 0f b7 4d 06 f6 c1 01 75 36 0f b7 c0 48 8d 0d 2c 07 2a 0c 48 8b 09 48 8b 49 10 83 e0 fc <48> 83 3c c1 00 74 5f 48 8b 45 c0 48 85 c0 74 63 4c 89 e9 48 c1 e9
[192076.984330] ThreadPoolForeg[87888]: segfault at 445407ef4495 ip 0000556a9b2cea8e sp 00007f6fd0df74c0 error 4 in chromium[4093a8e,556a998e2000+dbe9000] likely on CPU 7 (core 7, socket 0)
[192076.984344] Code: 41 57 41 56 41 55 41 54 53 50 48 89 f3 49 89 fe f6 47 7a 01 74 07 41 f6 46 7c 80 75 39 4d 8d 66 40 4d 8b 7e 40 4d 85 ff 74 27 <41> f6 47 05 02 74 6d 66 66 2e 0f 1f 84 00 00 00 00 00 4d 89 fc 4d
[192084.120021] traps: ThreadPoolForeg[91746] general protection fault ip:556a9b2c7f10 sp:7f6fd0df7490 error:0 in chromium[408cf10,556a998e2000+dbe9000]
[192088.000136] ThreadPoolForeg[91725]: segfault at 7f6fc86e2210 ip 0000556a99c6a67c sp 00007f6fd1df9ac0 error 4 in chromium[2a2f67c,556a998e2000+dbe9000] likely on CPU 2 (core 2, socket 0)
[192088.000148] Code: 48 89 f3 49 89 ff 49 bd 00 00 00 00 ff ff ff ff 4c 8d 76 28 4c 8b 23 4c 89 e0 48 c1 e8 20 74 28 49 8b 07 44 89 e1 48 c1 e1 04 <48> 8b 04 08 4c 89 e1 4c 21 e9 4c 01 e9 89 c2 48 09 ca 4c 89 e0 f0
[192088.386435] ThreadPoolForeg[85297]: segfault at 44f900f74444 ip 0000556a9b4e7171 sp 00007f6fd0df87f0 error 4 in chromium[42ac171,556a998e2000+dbe9000] likely on CPU 9 (core 9, socket 0)
[192088.386448] Code: 39 c7 74 05 e8 20 ce 5b 04 4d 89 a5 88 00 00 00 41 0f b7 4c 24 02 4c 89 e0 ff c9 66 89 48 02 0f b7 d1 c1 e2 04 4c 8b 74 10 18 <41> 8b 0e 48 83 f9 03 40 0f 94 c6 89 cf f7 d7 40 f6 c7 03 40 0f 95
[192114.144072] traps: ThreadPoolForeg[91790] trap invalid opcode ip:556a9b742a37 sp:7f6f45884760 error:0 in chromium[4507a37,556a998e2000+dbe9000]
[192756.319873] ServiceWorker t[92129]: segfault at 0 ip 0000000000000000 sp 00007f6f46df0c28 error 14 likely on CPU 9 (core 9, socket 0)
[192756.319881] Code: Unable to access opcode bytes at 0xffffffffffffffd6

this is my 103.conf
Code: 
agent: 1
balloon: 0
bios: ovmf
boot: order=scsi0;net0
cores: 12
cpu: host
efidisk0: local-lvm:vm-103-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
hostpci0: 0000:c7:00.0,pcie=1,romfile=vbios_8845hs.bin,x-vga=1
hostpci1: 0000:c7:00.1,pcie=1,romfile=AMDGopDriver_8845hs.rom
hostpci2: 0000:c7:00.5,pcie=1
hostpci3: 0000:c7:00.6,pcie=1
machine: q35
memory: 20480
meta: creation-qemu=9.2.0,ctime=1754811905
name: debian
net0: virtio=BC:24:11:41:36:DB,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-lvm:vm-103-disk-1,discard=on,iothread=1,size=100G
scsihw: virtio-scsi-single
smbios1: uuid=0b29cd97-73fc-44d7-883f-106e94aefd6b
sockets: 1
tpmstate0: local-lvm:vm-103-disk-2,size=4M,version=v2.0
usb0: host=3434:d030
usb1: host=046d:c08b
usb2: host=8087:0029
usb3: host=046d:094c
vga: none
vmgenid: 5ca44e34-0a11-43e8-b979-6c1835d9cee0

PC is GMKTEK K8 Plus 8845hs + 64 GB RAM + 1 TB nvme + 2 TB nvme

The problem started in arch linux VM. That's why i setup Debian 13 but now i have the exact same problems in Debian 13 too.
 
Last edited:
Hi,

My guess (Because of the many segfaults and xHCI errors in your crash log) is that the USB controller passthrough you are using is misbehaving and possibly corrupting guest (Arch and Debian) memory, leading to frequent crashes in multiple programs.

You could try disabling the USB passthrough to see if that fixes things. Otherwise it could also be related to your host memory being faulty or non-ECC. You could run a memtest on the host to rule out a hardware issue.
 
Nicolas Frey said:
Hi,

My guess (Because of the many segfaults and xHCI errors in your crash log) is that the USB controller passthrough you are using is misbehaving and possibly corrupting guest (Arch and Debian) memory, leading to frequent crashes in multiple programs.

You could try disabling the USB passthrough to see if that fixes things. Otherwise it could also be related to your host memory being faulty or non-ECC. You could run a memtest on the host to rule out a hardware issue.
Click to expand...
Got rid of webcam and bluetooth usbs. Left just mouse and keyboard which are connected to monitor and then from monitor one cable goes to PC. Worked since yesterday and recently started crashing chromium tabs and steam (dod) :(

usb errors stopped though.

Code: 
[   14.098650] clocksource: timekeeping watchdog on CPU3: Marking clocksource 'tsc' as unstable because the skew is too large:
[   14.098681] clocksource:                       'hpet' wd_nsec: 511979210 wd_now: 543c4e11 wd_last: 512f1630 mask: ffffffff
[   14.098701] clocksource:                       'tsc' cs_nsec: 525911949 cs_now: 1b03d3b14c cs_last: 1a8cee6664 mask: ffffffffffffffff
[   14.098716] clocksource:                       Clocksource 'tsc' skewed 13932739 ns (13 ms) over watchdog 'hpet' interval of 511979210 ns (511 ms)
[   14.098731] clocksource:                       'hpet' (not 'tsc') is current clocksource.
[   14.098752] tsc: Marking TSC unstable due to clocksource watchdog
[   14.098798] TSC found unstable after boot, most likely due to broken BIOS. Use 'tsc=unstable'.
[   14.098800] sched_clock: Marking unstable (14084201273, 571499)<-(14185676182, -86878654)
[15002.890842] show_signal: 96 callbacks suppressed
[15002.890845] traps: steamwebhelper[14063] trap invalid opcode ip:7fc1d6d0e81f sp:7fff66492720 error:0 in libcef.so[670d81f,7fc1d2a30000+a36b000]
[15915.775117] dod_linux64[14380]: segfault at 0 ip 0000000000000000 sp 00007ffcad08a8a8 error 14 likely on CPU 7 (core 7, socket 0)
[15915.775124] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[24194.382672] traps: SharedWorker th[20996] trap invalid opcode ip:1d6828482202 sp:7fbfacdfc868 error:0
[24852.049446] chromium[22710]: segfault at 133626f6d1e8 ip 0000563ce6c21bbf sp 00007ffeb4ed78a0 error 4 in chromium[4a92bbf,563ce4836000+dbe9000] likely on CPU 6 (core 6, socket 0)
[24852.049458] Code: 00 00 00 48 0f 44 ce 48 29 ca 48 8d 04 d0 0f b7 48 04 48 83 c0 08 48 8d 15 ae cb 29 0c 48 8b 12 48 8b 52 10 81 e1 fc ff 00 00 <48> 8b 54 ca 08 5d c3 cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa 55
[27730.682828] traps: chromium[24992] general protection fault ip:563cb9882201 sp:7ffeb4ed7330 error:25ac
[27817.920035] chromium[2431]: segfault at 1d2cfffff68f ip 0000563ce666a4cd sp 00007ffeb4ed5260 error 4 in chromium[44db4cd,563ce4836000+dbe9000] likely on CPU 10 (core 10, socket 0)
[27817.920047] Code: 09 c2 66 66 2e 0f 1f 84 00 00 00 00 00 49 89 d6 f6 03 02 75 11 41 0f b7 54 24 07 0f b7 d2 81 fa 30 01 00 00 75 5b 85 c9 74 57 <41> 8b 4e ff 49 89 c4 49 09 cc 0f b7 44 08 07 0f b7 c0 48 89 df 4c
[29627.698410] dod_linux64[26508]: segfault at 341003a735b8 ip 00007f1003a272be sp 00007fff6dbc73f0 error 4 in vgui2.so[132be,7f1003a1e000+46000] likely on CPU 8 (core 8, socket 0)
[29627.698424] Code: 02 00 00 49 89 c4 48 8b 45 c8 48 8b 30 48 85 f6 74 11 49 8b 04 24 4c 89 e7 ff 90 08 01 00 00 84 c0 74 c9 49 8b 04 24 4c 89 e7 <ff> 90 58 01 00 00 84 c0 74 b8 4d 85 e4 75 83 49 8b 3f 31 f6 48 8b
[29640.030423] chromium[2610]: segfault at 3633fff7fffe ip 0000563ce666a3a6 sp 00007ffeb4ed7a30 error 4 in chromium[44db3a6,563ce4836000+dbe9000] likely on CPU 3 (core 3, socket 0)
[29640.030442] Code: 24 8b 71 ff 0f b7 54 32 07 0f b7 d2 81 fa 2b 01 00 00 76 68 48 89 43 38 c6 43 08 00 c7 43 04 00 00 00 00 4c 8b 30 4d 8b 3c 24 <41> 8b 46 ff 41 0f b7 4c 07 07 49 09 c7 0f b7 c1 48 89 df 4c 89 fe
[29644.737334] traps: steamwebhelper[14460] trap invalid opcode ip:7fc1d6e081af sp:7fff66491050 error:0 in libcef.so[68071af,7fc1d2a30000+a36b000]
[29695.899298] dod_linux64[26665]: segfault at 5e3fde29c8c ip 00007f070de0f8b9 sp 00007ffcb07e2cd0 error 4 in client.so[80f8b9,7f070db9e000+545000] likely on CPU 9 (core 9, socket 0)
[29695.899310] Code: c0 66 0f ef d2 0f b6 10 80 fa ff 74 54 49 8b 4f 28 48 8d 34 95 00 00 00 00 48 63 0c 91 85 c9 78 30 49 8b 7c 24 50 44 8b 45 10 <44> 23 04 8f 74 21 48 8b 7b 08 48 63 3c 8f 85 ff 78 15 41 0f 2f 14
 
Last edited:
It turns out USB errors were not related to these crashes. I ran memtest and RAM turns out to be faulty.
 

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