syzbot


panic: Non dma-reachable buffer at curaddr ADDR(raw) (2)

Status: upstream: reported on 2023/11/21 10:28
Reported-by: syzbot+7ef6cbe277777a02245d@syzkaller.appspotmail.com
First crash: 209d, last: 81d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: Non dma-reachable buffer at curaddr ADDR(raw) 1 441d 441d 0/3 auto-obsoleted due to no activity on 2023/07/02 22:27

Sample crash report:
4Nopanic: Non dma-reachable buffer at curaddr 0x885b802744aca36b(raw)
Starting stack trace...
panic(ffffffff8291c1dd) at panic+0x16f sys/kern/subr_prf.c:229
_bus_dmamap_load_buffer(ffff80002a1585c0,ffff80000019c000,ffff8000139b2000,2800,0,401,85e691eb3fcb1576,2800,ffff80000019c000) at _bus_dmamap_load_buffer+0x599 sys/arch/amd64/amd64/bus_dma.c:587
_bus_dmamap_load(ffffffff82cd5aa0,ffff80000019c000,ffff8000139b2000,2800,0,401) at _bus_dmamap_load+0x9b sys/arch/amd64/amd64/bus_dma.c:179
vioscsi_scsi_cmd(fffffd8059fd1380) at vioscsi_scsi_cmd+0x1b1 sys/dev/pv/vioscsi.c:220
scsi_xs_exec(fffffd8059fd1380) at scsi_xs_exec+0x4b sys/scsi/scsi_base.c:1457
sdstart(fffffd8059fd1380) at sdstart+0x3f5 sys/scsi/sd.c:709
scsi_iopool_run(ffff8000000a3048) at scsi_iopool_run+0x114 scsi_ioh_pending sys/scsi/scsi_base.c:407 [inline]
scsi_iopool_run(ffff8000000a3048) at scsi_iopool_run+0x114 sys/scsi/scsi_base.c:423
scsi_xsh_runqueue(ffff80000002c500) at scsi_xsh_runqueue+0x2e5 sys/scsi/scsi_base.c:599
scsi_xsh_add(ffff80000019f1e0) at scsi_xsh_add+0xcd sys/scsi/scsi_base.c:538
sdstrategy(fffffd8061159460) at sdstrategy+0x187 sys/scsi/sd.c:567
spec_strategy(ffff80002a1588b8) at spec_strategy+0x3c sys/kern/spec_vnops.c:448
VOP_STRATEGY(fffffd807efb6360,fffffd8061159460) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
ufs_strategy(ffff80002a158968) at ufs_strategy+0x15e
VOP_STRATEGY(fffffd8072f6be70,fffffd8061159460) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8061159460) at bwrite+0x1d0 sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd8061159460) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
buf_daemon(ffff80002a145800) at buf_daemon+0x2d0 sys/kern/vfs_bio.c:1235
end trace frame: 0x0, count: 240
End of stack trace.
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Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/28 19:41 openbsd 2ee472d028ec 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore panic: Non dma-reachable buffer at curaddr ADDR(raw)
2024/02/12 23:43 openbsd 211058dfe174 77b23aa1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: Non dma-reachable buffer at curaddr ADDR(raw)
2023/11/21 10:27 openbsd 075cc07cd6bf cb976f63 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: Non dma-reachable buffer at curaddr ADDR(raw)
* Struck through repros no longer work on HEAD.