On Tue, Feb 20, 2024 at 12:09:17PM -0600, Steve French wrote: > FYI - I hit this oops in xfstests (around generic/048) today. This is > with 6.8-rc5 > > Any thoughts? Umm, this isn't an oops, it's just a backtrace. Do you have anything that was printed before the backtrace? I'd expect to see something complaining about sleeping for too long, since this is where we wait for writeback to finish ... the bug is probably something not calling folio_end_writeback() when it should. > 125545.834971] task:xfs_io state:D stack:0 pid:1697299 > tgid:1697299 ppid:1692194 flags:0x00004002 > [125545.834987] Call Trace: > [125545.834992] <TASK> > [125545.835002] __schedule+0x2cb/0x760 > [125545.835022] schedule+0x33/0x110 > [125545.835031] io_schedule+0x46/0x80 > [125545.835039] folio_wait_bit_common+0x136/0x330 > [125545.835052] ? __pfx_wake_page_function+0x10/0x10 > [125545.835069] folio_wait_bit+0x18/0x30 > [125545.835076] folio_wait_writeback+0x2b/0xa0 > [125545.835087] __filemap_fdatawait_range+0x93/0x110 > [125545.835104] filemap_write_and_wait_range+0x94/0xc0 > [125545.835120] cifs_flush+0x9a/0x140 [cifs] > [125545.835315] filp_flush+0x35/0x90 > [125545.835329] filp_close+0x14/0x30 > [125545.835341] put_files_struct+0x85/0xf0 > [125545.835354] exit_files+0x47/0x60 > [125545.835365] do_exit+0x295/0x530 > [125545.835377] ? wake_up_state+0x10/0x20 > [125545.835391] do_group_exit+0x35/0x90 > [125545.835403] __x64_sys_exit_group+0x18/0x20 > [125545.835414] do_syscall_64+0x74/0x140 > [125545.835424] ? handle_mm_fault+0xad/0x380 > [125545.835437] ? do_user_addr_fault+0x338/0x6b0 > [125545.835446] ? irqentry_exit_to_user_mode+0x6b/0x1a0 > [125545.835458] ? irqentry_exit+0x43/0x50 > [125545.835467] ? exc_page_fault+0x94/0x1b0 > [125545.835478] entry_SYSCALL_64_after_hwframe+0x6e/0x76 > [125545.835490] RIP: 0033:0x7f9b67eea36d > [125545.835549] RSP: 002b:00007ffde6442cd8 EFLAGS: 00000202 ORIG_RAX: > 00000000000000e7 > [125545.835560] RAX: ffffffffffffffda RBX: 00007f9b68000188 RCX: > 00007f9b67eea36d > [125545.835566] RDX: 00000000000000e7 RSI: ffffffffffffff28 RDI: > 0000000000000000 > [125545.835572] RBP: 0000000000000001 R08: 0000000000000000 R09: > 0000000000000000 > [125545.835576] R10: 00005b88e60ec720 R11: 0000000000000202 R12: > 0000000000000000 > [125545.835582] R13: 0000000000000000 R14: 00007f9b67ffe860 R15: > 00007f9b680001a0 > [125545.835597] </TASK> > > > -- > Thanks, > > Steve >
