Warning: Permanently added '10.128.0.155' (ED25519) to the list of known hosts. executing program [ 30.446223][ T4330] loop0: detected capacity change from 0 to 32768 [ 30.447811][ T4330] ======================================================= [ 30.447811][ T4330] WARNING: The mand mount option has been deprecated and [ 30.447811][ T4330] and is ignored by this kernel. Remove the mand [ 30.447811][ T4330] option from the mount to silence this warning. [ 30.447811][ T4330] ======================================================= [ 30.459741][ T4330] ERROR: (device loop0): dtSearch: stack overrun! [ 30.459741][ T4330] [ 30.461811][ T4330] ERROR: (device loop0): remounting filesystem as read-only [ 30.463088][ T4330] btstack dump: [ 30.463626][ T4330] bn = 0, index = 0 [ 30.464307][ T4330] bn = 72c, index = 96 [ 30.465058][ T4330] bn = 0, index = 0 [ 30.465705][ T4330] bn = 72c, index = 96 [ 30.466461][ T4330] bn = 0, index = 0 [ 30.467154][ T4330] bn = 72c, index = 96 [ 30.467892][ T4330] bn = 0, index = 0 [ 30.468555][ T4330] bn = 0, index = 0 [ 30.473746][ T94] BUG: Bad page state in process jfsCommit pfn:11131a [ 30.474867][ T94] page:0000000096c84e0b refcount:0 mapcount:0 mapping:0000000000000000 index:0x72c pfn:0x11131a [ 30.476406][ T94] flags: 0x5ffc60000002047(locked|referenced|uptodate|workingset|private|node=0|zone=2|lastcpupid=0x7ff) [ 30.478118][ T94] raw: 05ffc60000002047 dead000000000100 dead000000000122 0000000000000000 [ 30.479417][ T94] raw: 000000000000072c ffff0000ceae0ba0 00000000ffffffff 0000000000000000 [ 30.481727][ T94] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 30.482896][ T94] Modules linked in: [ 30.483618][ T94] CPU: 1 PID: 94 Comm: jfsCommit Not tainted syzkaller #0 [ 30.484786][ T94] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 30.486157][ T94] Call trace: [ 30.486650][ T94] dump_backtrace+0x1c4/0x1f0 [ 30.487341][ T94] show_stack+0x2c/0x3c [ 30.488006][ T94] __dump_stack+0x30/0x40 [ 30.488665][ T94] dump_stack_lvl+0xf4/0x15c [ 30.489341][ T94] dump_stack+0x1c/0x5c [ 30.489999][ T94] bad_page+0x188/0x1a8 [ 30.490620][ T94] free_page_is_bad_report+0xf8/0x170 [ 30.491485][ T94] free_unref_page_prepare+0x638/0xb24 [ 30.492358][ T94] free_unref_page+0x7c/0x3a0 [ 30.493122][ T94] __folio_put+0xd0/0x128 [ 30.493788][ T94] _metapage_homeok+0x130/0x210 [ 30.494536][ T94] txUnlock+0x230/0xbac [ 30.495192][ T94] jfs_lazycommit+0x454/0x930 [ 30.496023][ T94] kthread+0x254/0x2e0 [ 30.496655][ T94] ret_from_fork+0x10/0x20 [ 30.497795][ T94] Disabling lock debugging due to kernel taint [ 30.498910][ T94] page:0000000096c84e0b refcount:0 mapcount:0 mapping:0000000000000000 index:0x72c pfn:0x11131a [ 30.500578][ T94] flags: 0x5ffc60000002047(locked|referenced|uptodate|workingset|private|node=0|zone=2|lastcpupid=0x7ff) [ 30.502208][ T94] raw: 05ffc60000002047 dead000000000100 dead000000000122 0000000000000000 [ 30.503491][ T94] raw: 000000000000072c ffff0000ceae0ba0 00000000ffffffff 0000000000000000 [ 30.504712][ T94] page dumped because: VM_BUG_ON_FOLIO(((unsigned int) folio_ref_count(folio) + 127u <= 127u)) [ 30.506289][ T94] ------------[ cut here ]------------ [ 30.507120][ T94] kernel BUG at include/linux/mm.h:1146! [ 30.507916][ T94] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 30.509003][ T94] Modules linked in: [ 30.509620][ T94] CPU: 1 PID: 94 Comm: jfsCommit Tainted: G B syzkaller #0 [ 30.510955][ T94] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 30.512525][ T94] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 30.513816][ T94] pc : put_metapage+0x270/0x2b4 [ 30.514630][ T94] lr : put_metapage+0x270/0x2b4 [ 30.515396][ T94] sp : ffff8000206c7c10 [ 30.516048][ T94] x29: ffff8000206c7c10 x28: ffff80002021a090 x27: 0000000000000048 [ 30.517390][ T94] x26: ffff80001c743000 x25: 1fffe00019d5c179 x24: 1fffe00019d5c186 [ 30.518791][ T94] x23: dfff800000000000 x22: 000000000000007f x21: fffffc000344c6b4 [ 30.520114][ T94] x20: fffffc000344c680 x19: ffff0000ceae0ba0 x18: 1fffe00033e7697e [ 30.521424][ T94] x17: 635f6665725f6f69 x16: ffff800011b8ee98 x15: 2064656e6769736e [ 30.522724][ T94] x14: 0000000000000001 x13: 1fffe00033e769a3 x12: 0000000000000000 [ 30.524011][ T94] x11: ff008000087c8b38 x10: 0000000000000000 x9 : ffff8000087c8b38 [ 30.525331][ T94] x8 : ffff0000c6f91c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 30.526653][ T94] x5 : ffff8000206c7658 x4 : ffff800015464e60 x3 : ffff800008540378 [ 30.528010][ T94] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000005c [ 30.529253][ T94] Call trace: [ 30.529749][ T94] put_metapage+0x270/0x2b4 [ 30.530488][ T94] txUnlock+0x3bc/0xbac [ 30.531179][ T94] jfs_lazycommit+0x454/0x930 [ 30.531988][ T94] kthread+0x254/0x2e0 [ 30.532627][ T94] ret_from_fork+0x10/0x20 [ 30.533311][ T94] Code: 90043c01 913f0021 aa1403e0 97bb97d4 (d4210000) [ 30.534460][ T94] ---[ end trace 0000000000000000 ]--- [ 30.690594][ T94] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 30.691773][ T94] SMP: stopping secondary CPUs [ 30.692680][ T94] Kernel Offset: disabled [ 30.693358][ T94] CPU features: 0x0a0000,000f0097,a65bfea7 [ 30.694252][ T94] Memory Limit: none [ 30.842545][ T94] Rebooting in 86400 seconds..