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[12308.606480] watchdog: BUG: soft lockup - CPU#18 stuck for 26s! [umount:48479] [12308.606485] Modules linked in: bcachefs lz4hc_compress lz4_compress lz4_decompress sunrpc overlay nf_conntrack_netlink xt_nat xt_tcpudp veth xt_conntrack xt_MASQUERADE bridge stp llc xfrm_user ip6table_nat ip6table_filter ip6_tables iptable_nat xt_addrtype iptable_filter ip_tables x_tables nfnetlink_cttimeout nfnetlink openvswitch nsh nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 psample ext4 mbcache jbd2 nls_iso8859_1 nls_cp850 vfat fat binfmt_misc skx_edac_common nfit edac_core libnvdimm cbc encrypted_keys intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common ipmi_ssif x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm drivetemp rapl intel_cstate coretemp mgag200 i2c_algo_bit ixgbe drm_shmem_helper drm_kms_helper mdio_devres xfrm_algo mdio drm ptp intel_uncore mei_me efi_pstore evdev uas pl2303 pps_core libphy usb_storage usbserial lpc_ich mei drm_panel_orientation_quirks acpi_power_meter tiny_power_button ipmi_si mfd_core intel_pch_thermal acpi_tad acpi_ipmi ioatdma [12308.606541] ipmi_devintf ipmi_msghandler dca wmi button efivarfs polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 sha1_generic xhci_pci xhci_hcd aesni_intel ehci_pci ehci_hcd gf128mul crypto_simd cryptd usbcore hpwdt usb_common [12308.606557] CPU: 18 UID: 0 PID: 48479 Comm: umount Tainted: G L 6.14.0-rc6-x86_64-00159-ga09496a03e63 #1 [12308.606560] Tainted: [L]=SOFTLOCKUP [12308.606561] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 07/20/2023 [12308.606563] RIP: 0010:clear_page_erms+0x7/0x10 [12308.606570] Code: 48 89 47 38 48 8d 7f 40 75 d9 90 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 b9 00 10 00 00 31 c0 <f3> aa c3 cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [12308.606572] RSP: 0018:ffff9ed5b622fba0 EFLAGS: 00010246 [12308.606574] RAX: 0000000000000000 RBX: ffff90347fffe6c0 RCX: 00000000000004c0 [12308.606575] RDX: ffffe34ea9bec1c0 RSI: 00000000000405f0 RDI: ffff902eafb07b40 [12308.606576] RBP: ffff9ed5b622fbf0 R08: 0000000000000001 R09: 0000000000000006 [12308.606577] R10: 0000000000040001 R11: 0000000000000000 R12: ffffe34ea9bec000 [12308.606578] R13: 0000000000000000 R14: 0000000000000006 R15: ffffe34ea9bed000 [12308.606580] FS: 00007fe704ecfb68(0000) GS:ffff9053fea00000(0000) knlGS:0000000000000000 [12308.606581] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [12308.606582] CR2: 00007f18159068ae CR3: 00000001314d0005 CR4: 00000000007726f0 [12308.606583] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [12308.606584] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [12308.606584] PKRU: 55555554 [12308.606585] Call Trace: [12308.606587] <IRQ> [12308.606590] ? show_regs.cold+0x19/0x28 [12308.606595] ? watchdog_timer_fn.cold+0x3d/0x9d [12308.606598] ? __pfx_watchdog_timer_fn+0x10/0x10 [12308.606602] ? __hrtimer_run_queues+0x12e/0x250 [12308.606607] ? hrtimer_interrupt+0xfd/0x220 [12308.606609] ? __sysvec_apic_timer_interrupt+0x53/0xe0 [12308.606614] ? sysvec_apic_timer_interrupt+0x76/0xa0 [12308.606619] </IRQ> [12308.606620] <TASK> [12308.606620] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [12308.606626] ? clear_page_erms+0x7/0x10 [12308.606628] ? __free_pages_ok+0x374/0x640 [12308.606633] free_frozen_pages+0x34/0x570 [12308.606636] __folio_put+0x87/0xe0 [12308.606641] free_large_kmalloc+0x70/0x80 [12308.606645] kfree+0x2f6/0x390 [12308.606648] kvfree+0x2d/0x40 [12308.606653] __btree_node_data_free+0xaf/0xf0 [bcachefs] [12308.606726] btree_node_data_free+0x6a/0x80 [bcachefs] [12308.606778] bch2_fs_btree_cache_exit+0x262/0x440 [bcachefs] [12308.606829] bch2_fs_release+0xe8/0x340 [bcachefs] [12308.606905] kobject_put+0x60/0xc0 [12308.606908] bch2_fs_free+0xdd/0x120 [bcachefs] [12308.606981] bch2_kill_sb+0x1e/0x30 [bcachefs] [12308.607051] deactivate_locked_super+0x32/0xb0 [12308.607055] deactivate_super+0x40/0x50 [12308.607057] cleanup_mnt+0xc3/0x160 [12308.607060] __cleanup_mnt+0x12/0x20 [12308.607062] task_work_run+0x5f/0xa0 [12308.607064] syscall_exit_to_user_mode+0x194/0x1a0 [12308.607066] do_syscall_64+0x67/0x170 [12308.607068] entry_SYSCALL_64_after_hwframe+0x76/0x7e [12308.607070] RIP: 0033:0x7fe704e66eed [12308.607073] Code: 08 49 89 ca b8 a5 00 00 00 0f 05 48 89 c7 e8 8a e6 ff ff 48 83 c4 Reported-by: Stijn Tintel <stijn@linux-ipv6.be> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.