Andrew Morton schrieb: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc6/2.6.22-rc6-mm1/ > > - Added the kgdb tree, as git-kgdb.patch (Jason Wessel > <[email protected]>) > > This is a large patch which unifies all the various kgdb stubs lying > around various architectures and extends kgdb support to other > architectures. Supported architectures are at present arm, i386, ia64, > mips, ppc32, ppc64, sh, and x86_64. > > Subject to review, we're aiming this at 2.6.24. Built a kernel with this just for fun on a Pentium D 940 system running a 32 bit install of SuSE 10.2. It complained thusly relatively early during startup: --------8<--------8<--------8<--------8<--------8<--------8<--------8< Bad IO access at port 10000 (outb(val,port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [iowrite8+52/54] iowrite8+0x34/0x36 [kgdb8250_uart_init+164/609] kgdb8250_uart_init+0xa4/0x261 [kgdb_init_io+172/200] kgdb_init_io+0xac/0xc8 [kgdb_late_entry+54/164] kgdb_late_entry+0x36/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 ======================= Bad IO access at port 10000 (return inb(port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [ioread8+40/47] ioread8+0x28/0x2f [kgdb8250_uart_init+334/609] kgdb8250_uart_init+0x14e/0x261 [kgdb_init_io+172/200] kgdb_init_io+0xac/0xc8 input: AT Translated Set 2 keyboard as /class/input/input1 [kgdb_late_entry+54/164] kgdb_late_entry+0x36/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 ======================= Bad IO access at port 10000 (outb(val,port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [iowrite8+52/54] iowrite8+0x34/0x36 [kgdb8250_uart_init+164/609] kgdb8250_uart_init+0xa4/0x261 [kgdb8250_late_init+32/153] kgdb8250_late_init+0x20/0x99 [kgdb_late_entry+136/164] kgdb_late_entry+0x88/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 ======================= Bad IO access at port 10000 (return inb(port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [ioread8+40/47] ioread8+0x28/0x2f [kgdb8250_uart_init+334/609] kgdb8250_uart_init+0x14e/0x261 [kgdb8250_late_init+32/153] kgdb8250_late_init+0x20/0x99 [kgdb_late_entry+136/164] kgdb_late_entry+0x88/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 ======================= KGDB failed to request the serial IRQ (0) registered taskstats version 1 Freeing unused kernel memory: 236k freed --------8<--------8<--------8<--------8<--------8<--------8<--------8< Apart from that, the kernel runs fine, though its subjectively a bit sluggish compared to 2.6.22-rc6-mm1 without kgdb. Its uname -a is: Linux xenon 2.6.22-rc6-mm1-test4 #10 SMP PREEMPT Thu Jul 5 23:41:32 CEST 2007 i686 i686 i386 GNU/Linux I didn't even try to actually do anything with kgdb, though. The .config delta is: --- good.config-3 2007-07-05 22:35:30.000000000 +0200 +++ .config 2007-07-05 23:23:09.000000000 +0200 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.22-rc6-mm1 -# Thu Jul 5 22:05:32 2007 +# Thu Jul 5 23:23:09 2007 # CONFIG_X86_32=y CONFIG_GENERIC_TIME=y @@ -35,7 +35,7 @@ # # General setup # -CONFIG_LOCALVERSION="-test3" +CONFIG_LOCALVERSION="-test4" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SWAP_PREFETCH=y @@ -2529,8 +2529,24 @@ CONFIG_FAIL_MAKE_REQUEST=y CONFIG_FAULT_INJECTION_DEBUG_FS=y CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y -# CONFIG_WANT_EXTRA_DEBUG_INFORMATION is not set -# CONFIG_KGDB is not set +CONFIG_WANT_EXTRA_DEBUG_INFORMATION=y +CONFIG_KGDB=y +# CONFIG_KGDB_CONSOLE is not set +# CONFIG_KGDB_ONLY_MODULES is not set +CONFIG_KGDB_8250_NOMODULE=y +# CONFIG_KGDBOE_NOMODULE is not set +# CONFIG_KGDB_MPSC is not set +# CONFIG_KGDB_CPM_UART is not set +# CONFIG_KGDB_SIBYTE is not set +# CONFIG_KGDB_TXX9 is not set +# CONFIG_KGDB_SH_SCI is not set +# CONFIG_KGDB_AMBA_PL011 is not set +# CONFIG_KGDB_PXA_SERIAL is not set +# CONFIG_KGDBOE is not set +CONFIG_KGDB_8250=y +CONFIG_KGDB_SIMPLE_SERIAL=y +CONFIG_KGDB_BAUDRATE=115200 +CONFIG_KGDB_PORT_NUM=1 CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y HTH T. -- Tilman Schmidt E-Mail: [email protected] Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. 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