15-Sep-2026 19:21:50: building syzkaller on d1b870e1003b52891d2196c1e2ee42fe905010ba... 15-Sep-2026 19:22:20: fetching kernel... 15-Sep-2026 19:22:23: checked out kernel commit 9b87fdc9af2fbfcdb5c24a64139685ef80f6573f ("Merge tag 'sched_ext-for-7.3-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext", 2026-09-15 11:57:51 -0700 -0700) 15-Sep-2026 19:22:23: cleaning kernel... 15-Sep-2026 19:22:25: building kernel... 15-Sep-2026 19:34:08: 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 19:34:08: testing patch... 15-Sep-2026 19:37:02: aggregating test results failed: lost connection to test machine Warning: Permanently added '[localhost]:28383' (ED25519) to the list of known hosts. syzkaller login: [ 92.023233][ T924] cfg80211: failed to load regulatory.db qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) 2026/09/15 19:35:46 parsed 1 programs [ 97.090158][ T5292] cgroup: Unknown subsys name 'net' [ 97.162998][ T5292] cgroup: Unknown subsys name 'cpuset' [ 97.170681][ T5292] cgroup: Unknown subsys name 'rlimit' [ 122.956165][ T1026] ata1.00: exception Emask 0x0 SAct 0x900 SErr 0x0 action 0x6 frozen [ 122.956188][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED [ 122.956195][ T1026] ata1.00: cmd 61/00:40:36:01:05/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou [ 122.956195][ T1026] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 122.956225][ T1026] ata1.00: status: { DRDY } [ 122.956235][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED [ 122.956241][ T1026] ata1.00: cmd 61/00:58:36:61:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou [ 122.956241][ T1026] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 122.956271][ T1026] ata1.00: status: { DRDY } [ 122.956318][ T1026] ata1: hard resetting link [ 123.280571][ T1026] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 123.281881][ T1026] ata1.00: configured for UDMA/100 [ 123.282343][ T1026] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 123.306859][ T1026] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 123.306877][ T1026] ata1: failed to read log page 10h (errno=-5) [ 123.306889][ T1026] ata1.00: NCQ disabled due to excessive errors [ 123.306898][ T1026] ata1.00: exception Emask 0x1 SAct 0x1c000000 SErr 0x0 action 0x0 [ 123.306909][ T1026] ata1.00: irq_stat 0x41000000 [ 123.306921][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED [ 123.306927][ T1026] ata1.00: cmd 61/00:d0:36:01:05/20:00:00:00:00/40 tag 26 ncq dma 4194304 ou [ 123.306927][ T1026] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 123.306959][ T1026] ata1.00: status: { DRDY } [ 123.306969][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED [ 123.306975][ T1026] ata1.00: cmd 61/00:d8:36:61:05/20:00:00:00:00/40 tag 27 ncq dma 4194304 ou [ 123.306975][ T1026] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 123.307005][ T1026] ata1.00: status: { DRDY } [ 123.307014][ T1026] ata1.00: failed command: WRITE FPDMA QUEUED [ 123.307021][ T1026] ata1.00: cmd 61/60:e0:ce:89:05/05:00:00:00:00/40 tag 28 ncq dma 704512 out [ 123.307021][ T1026] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 123.307057][ T1026] ata1.00: status: { DRDY } [ 123.308078][ T1026] ata1.00: configured for UDMA/100 [ 123.308730][ T1026] ata1: EH complete Setting up swapspace version 1, size = 127995904 bytes [ 124.837712][ T5292] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 133.453408][ T5322] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 138.099863][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 138.099900][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 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.