15-Sep-2026 17:20:54: building syzkaller on d1b870e1003b52891d2196c1e2ee42fe905010ba... 15-Sep-2026 17:29:14: fetching kernel... 15-Sep-2026 17:29:16: checked out kernel commit f6e7b42bf05b2427fb8a7a1d1c387a86638bb413 ("Merge tag 'sysctl-7.03-fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl", 2026-09-15 09:43:15 -0700 -0700) 15-Sep-2026 17:29:16: cleaning kernel... 15-Sep-2026 17:29:17: building kernel... 15-Sep-2026 17:36:04: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 15-Sep-2026 17:36:04: testing patch... 15-Sep-2026 17:37:30: aggregating test results failed: lost connection to test machine qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xa8000) [ 55.921766][ T1023] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 55.921793][ T1023] ata1: failed to read log page 10h (errno=-5) [ 55.921802][ T1023] ata1.00: exception Emask 0x1 SAct 0x40000001 SErr 0x0 action 0x0 [ 55.921862][ T1023] ata1.00: irq_stat 0x40000000 [ 55.921871][ T1023] ata1.00: failed command: WRITE FPDMA QUEUED [ 55.921875][ T1023] ata1.00: cmd 61/c0:00:ee:4e:04/02:00:00:00:00/40 tag 0 ncq dma 360448 out [ 55.921875][ T1023] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 55.921894][ T1023] ata1.00: status: { DRDY } [ 55.921901][ T1023] ata1.00: failed command: WRITE FPDMA QUEUED [ 55.921905][ T1023] ata1.00: cmd 61/40:f0:ae:49:04/05:00:00:00:00/40 tag 30 ncq dma 688128 out [ 55.921905][ T1023] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 55.921923][ T1023] ata1.00: status: { DRDY } [ 55.922663][ T1023] ata1.00: configured for UDMA/100 [ 55.922969][ T1023] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 56.287537][ T1023] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 56.287550][ T1023] ata1: failed to read log page 10h (errno=-5) [ 56.287557][ T1023] ata1.00: NCQ disabled due to excessive errors [ 56.287562][ T1023] ata1.00: exception Emask 0x1 SAct 0x600000 SErr 0x0 action 0x0 [ 56.287569][ T1023] ata1.00: irq_stat 0x41000000 [ 56.287576][ T1023] ata1.00: failed command: WRITE FPDMA QUEUED [ 56.287581][ T1023] ata1.00: cmd 61/00:a8:36:e1:04/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou [ 56.287581][ T1023] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 56.287600][ T1023] ata1.00: status: { DRDY } [ 56.287606][ T1023] ata1.00: failed command: WRITE FPDMA QUEUED [ 56.287674][ T1023] ata1.00: cmd 61/00:b0:36:01:05/20:00:00:00:00/40 tag 22 ncq dma 4194304 ou [ 56.287674][ T1023] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 56.287695][ T1023] ata1.00: status: { DRDY } [ 56.288317][ T1023] ata1.00: configured for UDMA/100 [ 56.288718][ T1023] ata1: EH complete Warning: Permanently added '[localhost]:46894' (ED25519) to the list of known hosts. 2026/09/15 17:37:06 parsed 1 programs [ 61.279158][ T5282] cgroup: Unknown subsys name 'net' [ 61.323069][ T5282] cgroup: Unknown subsys name 'cpuset' [ 61.325203][ T5282] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 62.307699][ T5282] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 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.