mizhka’s gists

mizhka / mips-test-tls-1.lst

Created December 5, 2017 13:50

	db> bt
	Tracing pid 215 tid 100061 td 0x80862b40
	[kernel] kdb_enter+0x48 (?,?,?,?) ra 8018e6e4 sp c0473b90 sz 24 subr 8018e594
	[kernel] kdb_sysctl_enter+0xbc (?,?,?,?) ra 8014f7b0 sp c0473ba8 sz 48 subr 8018e628
	[kernel] sysctl_root_handler_locked+0xa4 (?,?,?,?) ra 8014fa78 sp c0473bd8 sz 56 subr 8014f70c
	[kernel] sysctl_root+0xd8 (?,?,?,?) ra 8014fed4 sp c0473c10 sz 96 subr 8014f9a0
	[kernel] userland_sysctl+0x110 (80862b40,?,?,?) ra 80150184 sp c0473c70 sz 112 subr 8014fdc4
	[kernel] sys___sysctl+0xac (?,?,?,?) ra 80349874 sp c0473ce0 sz 168 subr 801500d8
	[kernel] trap+0x1000 (?,?,?,?) ra 80336304 sp c0473d88 sz 248 subr 80348874
	[kernel] MipsUserGenException+0x10c (?,?,?,?) ra 00000000 sp c0473e80 sz 0 subr 803361f8

mizhka / mips_test_tls_idalloctm.lst

Created December 5, 2017 20:57

	Tracing pid 207 tid 100060 td 0x806c6780
	[kernel] kdb_enter+0x48 (?,?,?,?) ra 8018e6e4 sp c04f5b90 sz 24 subr 8018e594
	[kernel] kdb_sysctl_enter+0xbc (?,?,?,?) ra 8014f7b0 sp c04f5ba8 sz 48 subr 8018e628
	[kernel] sysctl_root_handler_locked+0xa4 (?,?,?,?) ra 8014fa78 sp c04f5bd8 sz 56 subr 8014f70c
	[kernel] sysctl_root+0xd8 (?,?,?,?) ra 8014fed4 sp c04f5c10 sz 96 subr 8014f9a0
	[kernel] userland_sysctl+0x110 (806c6780,?,?,?) ra 80150184 sp c04f5c70 sz 112 subr 8014fdc4
	[kernel] sys___sysctl+0xac (?,?,?,?) ra 80349874 sp c04f5ce0 sz 168 subr 801500d8
	[kernel] trap+0x1000 (?,?,?,?) ra 80336304 sp c04f5d88 sz 248 subr 80348874
	[kernel] MipsUserGenException+0x10c (?,?,?,?) ra 00000000 sp c04f5e80 sz 0 subr 803361f8
	--- exception, cause 4ea420 badvaddr 25 ---

mizhka / evolution-rebuild.lst

Created December 11, 2017 13:25

	/usr/local/lib/libwebkit2gtk-4.0.so.37: Undefined symbol "soup_auth_negotiate_supported"
	/usr/local/lib/libwebkit2gtk-4.0.so.37: Undefined symbol "soup_auth_negotiate_supported"

mizhka / 3g-router-linux.lst

Created December 23, 2017 16:52

	U-Boot 1.1.3 (Jul 8 2013 - 10:13:26)

	Board: Ralink APSoC DRAM: 32 MB
	relocate_code Pointer at: 81fb4000
	******************************
	Software System Reset Occurred
	******************************
	spi_wait_nsec: 42
	spi device id: c2 20 16 c2 20 (2016c220)
	find flash: MX25L3205D

mizhka / old-mips-malloc-init-issue.lst

Created February 14, 2018 23:16

old-mips-malloc-init-issue.lst

	CFE> boot -tftp 192.168.1.2:/kernel.BCM.tramp.bin -raw -max=0x700000 -addr=0x80900000
	Loader:raw Filesys:tftp Dev:eth0 File:192.168.1.2:/kernel.BCM.tramp.bin Options:(null)
	Loading: CFE works as TFTP Client.
	.......TFTP_BLKLEN!!
	break!! last block!!
	.. 5419928 bytes read
	Entry at 0x80900000
	Closing network.
	Starting program at 0x80900000
	entry: mips_init()

mizhka / gist:d26481c21ceaab93516ad73842ce70b6

Created May 14, 2019 12:18

Poor Man FreeBSD DDB stacktraces

	CODE:

	int debug = 1;
	sysctlbyname("debug.kdb.enter", NULL, NULL, &debug, sizeof(debug));

	WHERE:

	libc - abort
	login - bail

mizhka / gist:f497f8ca7121087577d94d5b10d7f3d7

Created May 14, 2019 16:10

Useful Unix commands

	dig, host - fetches DNS information
	fuser - displays the PIDs of processes using the specified files or file systems.
	gcore - generate a core file of a running program
	gdb - allow you to see what is going on ''inside'' another program / coredump
	iotop - watches I/O usage information output and displays a table of current I/O usage by processes or threads on the system
	lftp - a file transfer program that allows sophisticated ftp, http and other connections to other hosts (including parallel transfer)
	lsof - lists on its standard output file information about files opened by processes
	nc - networking utility for reading from and writing to network connections using TCP or UDP
	nmon - a huge amount of important performance information in one go
	pbzip2 - a parallel implementation of the bzip2 block-sorting file compressor that uses pthreads and achieves near-linear speedup on SMP machines

mizhka / gist:0e1461c360b133d526ebe0854635cf44

Created May 20, 2019 07:32

WHR-300 FreeBSD firmware - entropy

	% binwalk -E whr300-tftp-noheader.bin

	WARNING: Failed to import pyqtgraph module, visual entropy graphing will be disabled

	DECIMAL HEXADECIMAL ENTROPY
	--------------------------------------------------------------------------------
	0 0x0 Rising entropy edge (0.985684)
	1392640 0x154000 Falling entropy edge (0.000000)
	1443840 0x160800 Rising entropy edge (0.989380)
	3745792 0x392800 Falling entropy edge (0.693819)

mizhka / gist:9098edbcc555a3e5fc0fe3b594160155

Created May 21, 2019 18:50

Infrequent UBoot issue

	GOOD:

	ar7240> erase 0xbf040000 +0x160000
	Erase Flash from 0xbf040000 to 0xbf19ffff in Bank # 1
	First 0x40 last 0x19f sector size 0x1000
	400
	Erased 352 sectors
	ar7240> cp.b 0x81000000 0xbf040000 0x160000
	Copy to Flash...
	Copy 1441792 byte to Flash... write addr: bf040000

mizhka / gist:1256aed0aa535d318cb369407616293d

Last active May 21, 2019 19:06

WHR-300 uboot help

Michael Zhilin mizhka