Differential D54841
LinuxKPI: exapnd dma_sync_single_for_cpu() in lkpi_dma_unmap() Authored by bz on Jan 23 2026, 7:21 PM. Tags None Referenced Files
Details In case lkpi_dma_unmap() would call dma_sync_single_for_cpu() we get It would be hard to provide an internal "locked" version for Sponsored by: The FreeBSD Foundation panic: _mtx_lock_sleep: recursed on non-recursive mutex lkpi-priv-dma @ /sys/compat/linuxkpi/common/src/linux_pci.c:1835 cpuid = 15 time = 1769190994 KDB: stack backtrace: db_trace_self() at db_trace_self db_trace_self_wrapper() at db_trace_self_wrapper+0x38 vpanic() at vpanic+0x1a0 panic() at panic+0x48 __mtx_lock_sleep() at __mtx_lock_sleep+0x428 __mtx_lock_flags() at __mtx_lock_flags+0x130 lkpi_dma_unmap() at lkpi_dma_unmap+0x18c iwl_pcie_free_rbs_pool() at iwl_pcie_free_rbs_pool+0x6c iwl_pcie_gen1_2_op_mode_enter() at iwl_pcie_gen1_2_op_mode_enter+0x14 iwl_op_mode_mvm_start() at iwl_op_mode_mvm_start+0x83c iwl_opmode_register() at iwl_opmode_register+0x1a8 iwl_mvm_init() at iwl_mvm_init+0x44 linker_load_module() at linker_load_module+0xb20 kern_kldload() at kern_kldload+0x18c sys_kldload() at sys_kldload+0x6c do_el0_sync() at do_el0_sync+0x68c handle_el0_sync() at handle_el0_sync+0x4c
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Event TimelineComment Actions I would love to get this one in before Monday too. It is simple. In case anyone wants to review but currently does not have time, let me know and I'll wait even if not reviewed. |