building syzkaller on 3c5eaa21b0dde97af48b7218aaad155b57ae3941...
fetching kernel...
checked out kernel commit f5bbbfec59b4e2fb7520a91de3df8a6174325d6a ("Merge tag 'probes-fixes-v7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace", 2026-08-11 06:51:46 -0700 -0700)
cleaning kernel...
building kernel...
kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
testing patch...
aggregating test results failed: lost connection to test machine



syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xed000)
[  120.215382][ T1021] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[  120.218307][ T1021] ata1: failed to read log page 10h (errno=-5)
[  120.221068][ T1021] ata1.00: exception Emask 0x1 SAct 0xc000 SErr 0x0 action 0x0
[  120.254450][ T1021] ata1.00: irq_stat 0x41000000
[  120.257085][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED
[  120.259672][ T1021] ata1.00: cmd 61/68:70:66:60:04/07:00:00:00:00/40 tag 14 ncq dma 970752 out
[  120.259672][ T1021]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  120.286143][ T1021] ata1.00: status: { DRDY }
[  120.288210][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED
[  120.290862][ T1021] ata1.00: cmd 61/70:78:ce:67:04/10:00:00:00:00/40 tag 15 ncq dma 2154496 ou
[  120.290862][ T1021]          res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[  120.314210][ T1021] ata1.00: status: { DRDY }
[  120.322325][ T1021] ata1.00: configured for UDMA/100
[  120.329793][ T1021] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x328000)
Warning: Permanently added '[localhost]:27003' (ED25519) to the list of known hosts.
2026/08/12 11:41:27 parsed 1 programs
2026/08/12 11:41:27 serving rpc on tcp://40309
[  129.946310][ T5290] cgroup: Unknown subsys name 'net'
[  130.020253][ T5290] cgroup: Unknown subsys name 'cpuset'
[  130.027967][ T5290] cgroup: Unknown subsys name 'rlimit'
[  137.929569][ T1323] ieee802154 phy0 wpan0: encryption failed: -22
[  137.933148][ T1323] ieee802154 phy1 wpan1: encryption failed: -22
[  154.583521][ T1021] ata1.00: NCQ disabled due to excessive errors
[  154.586218][ T1021] ata1.00: exception Emask 0x0 SAct 0x100 SErr 0x0 action 0x6 frozen
[  154.590042][ T1021] ata1.00: failed command: WRITE FPDMA QUEUED
[  154.594210][ T1021] ata1.00: cmd 61/40:40:36:21:05/19:00:00:00:00/40 tag 8 ncq dma 3309568 ou
[  154.594210][ T1021]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  154.601510][ T1021] ata1.00: status: { DRDY }
[  154.604103][ T1021] ata1: hard resetting link
[  154.925352][ T1021] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[  154.929903][ T1021] ata1.00: configured for UDMA/100
[  154.932978][ T1021] ata1: EH complete
qemu-system-x86_64: hw/ide/core.c:925: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed.
Connection to localhost closed by remote host.