Oracle OCI Amd Epic x64, Error loaded klibs: assertion buffer_extend(m->descv, sizeof(struct vring_desc)) failed at /home/circleci/project/src/virtio/virtqueue.c:144

[AngeloRubens]

hi,

console-history-20260203-1614.log

on this instance, VM.Standard.E2.1.Micro, of oracle oci free plan with amd epyc x64,

http://158.180.236.67:8080/primefaces-showcase-16.0.0-SNAPSHOT/info.xhtml

After more than 750 hours of activity, the instance shows this exception:

frame trace: 
ffffc0000281fb20: ffffffffc70c66dc (virtio_scsi_io_sg + 000000000000030c/0000000000000625)
ffffc0000281fbd0: ffffffffc705f34c (read_extent + 00000000000000ac/00000000000000f9)
ffffc0000281fc40: ffffffffc7044d4f (rangemap_range_lookup_with_gaps + 000000000000012f/0000000000000238)
ffffc0000281fca0: ffffffffc705f211 (tfs_read + 0000000000000151/0000000000000186)
ffffc0000281fda0: ffffffffc7014c1b (pagecache_node_fetch_internal + 000000000000060b/0000000000000925)
ffffc0000281ff10: ffffffffc7019647 (pagecache_node_fetch_pages + 0000000000000087/000000000000009b)
ffffc0000281ff30: ffffffffc70751f7 (file_cache_async + 0000000000000027/000000000000006d)
ffffc0000281ff50: ffffffffc701d0fc (runloop_internal + 000000000000032c/0000000000000af6)
ffffc0000281ffc0: ffffffffc7004403 (context_switch_finish + 0000000000000073/0000000000000211)

kernel load offset ffffffffc6dbc000

loaded klibs: 
assertion buffer_extend(m->descv, sizeof(struct vring_desc)) failed at /home/circleci/project/src/virtio/virtqueue.c:144 (IP 0xffffffffc70c8eec) in vqmsg_push()

[francescolavra]

The above assertion failure is triggered by an out-of-memory condition. #2163 makes the kernel handle this condition gracefully instead halting the system. However, the fact that the system runs out of memory is likely to causes application-level errors and prevent the application from working properly.