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breakpoint on "printk" in kgdb + VirtualBox over serial

Jun 16th, 2012
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  1. Breakpoint 1, printk (fmt=0xffffffff81a4f278 "<6>Linux agpgart interface v%d.%d\n")
  2. at kernel/printk.c:753
  3. 753 }
  4. (gdb) cont
  5. Continuing.
  6. [New Thread 19]
  7. [Switching to Thread 19]
  8. Breakpoint 1, printk (
  9. fmt=0xffffffff819ed780 "<6>Refined TSC clocksource calibration: %lu.%03lu MHz.\n")
  10. at kernel/printk.c:753
  11. 753 }
  12. (gdb)
  13. Continuing.
  14. [Switching to Thread 1]
  15. Breakpoint 1, printk (fmt=0xffffffff81a37d88 "<6>brd: module loaded\n") at kernel/printk.c:753
  16. 753 }
  17. (gdb)
  18. Continuing.
  19. Breakpoint 1, printk (fmt=0xffffffff81a37dcb "<6>loop: module loaded\n") at kernel/printk.c:753
  20. 753 }
  21. (gdb)
  22. Continuing.
  23. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  24. 753 }
  25. (gdb)
  26. Continuing.
  27. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  28. 753 }
  29. (gdb)
  30. Continuing.
  31. Breakpoint 1, printk (fmt=0xffffffff81a3a638 "<6>scsi%d : %s\n") at kernel/printk.c:753
  32. 753 }
  33. (gdb)
  34. Continuing.
  35. Breakpoint 1, printk (fmt=0xffffffff81a3a638 "<6>scsi%d : %s\n") at kernel/printk.c:753
  36. 753 }
  37. (gdb)
  38. Continuing.
  39. Breakpoint 1, printk (fmt=0xffffffff81a3f28f "%sata%u: %pV") at kernel/printk.c:753
  40. 753 }
  41. (gdb)
  42. Continuing.
  43. Breakpoint 1, printk (fmt=0xffffffff81a3f28f "%sata%u: %pV") at kernel/printk.c:753
  44. 753 }
  45. (gdb)
  46. Continuing.
  47. Breakpoint 1, printk (fmt=0xffffffff81a414de "<6>%s: probed\n") at kernel/printk.c:753
  48. 753 }
  49. (gdb)
  50. Continuing.
  51. Breakpoint 1, printk (fmt=0xffffffff81a417de "<6>tun: %s, %s\n") at kernel/printk.c:753
  52. 753 }
  53. (gdb)
  54. Continuing.
  55. Breakpoint 1, printk (fmt=0xffffffff81a417ee "<6>tun: %s\n") at kernel/printk.c:753
  56. 753 }
  57. (gdb)
  58. Continuing.
  59. [Switching to Thread 19]
  60. Breakpoint 1, printk (fmt=0xffffffff81a01830 "<6>Switching to clocksource %s\n")
  61. at kernel/printk.c:753
  62. 753 }
  63. (gdb)
  64. Continuing.
  65. [Switching to Thread 1]
  66. Breakpoint 1, printk (fmt=0xffffffff81a5dcd8 "<6>PPP generic driver version 2.4.2\n")
  67. at kernel/printk.c:753
  68. 753 }
  69. (gdb)
  70. Continuing.
  71. Breakpoint 1, printk (
  72. fmt=0xffffffff81a60ef8 "<6>%s: USB 2.0 'Enhanced' Host Controller (EHCI) Driver\n")
  73. at kernel/printk.c:753
  74. 753 }
  75. (gdb)
  76. Continuing.
  77. [New Thread 36]
  78. [Switching to Thread 36]
  79. Breakpoint 1, printk (fmt=0xffffffff81a3f27d "%sata%u.%02u: %pV") at kernel/printk.c:753
  80. 753 }
  81. (gdb)
  82. Continuing.
  83. Breakpoint 1, printk (fmt=0xffffffff81a3f27d "%sata%u.%02u: %pV") at kernel/printk.c:753
  84. 753 }
  85. (gdb)
  86. Continuing.
  87. Breakpoint 1, printk (fmt=0xffffffff81a3f27d "%sata%u.%02u: %pV") at kernel/printk.c:753
  88. 753 }
  89. (gdb)
  90. Continuing.
  91. [Switching to Thread 1]
  92. Breakpoint 1, printk (
  93. fmt=0xffffffff81a611e0 "<6>%s: USB 1.1 'Open' Host Controller (OHCI) Driver\n")
  94. at kernel/printk.c:753
  95. 753 }
  96. (gdb)
  97. Continuing.
  98. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  99. 753 }
  100. (gdb)
  101. Continuing.
  102. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  103. 753 }
  104. (gdb)
  105. Continuing.
  106. [Switching to Thread 36]
  107. Breakpoint 1, printk (fmt=0xffffffff81a3f27d "%sata%u.%02u: %pV") at kernel/printk.c:753
  108. 753 }
  109. (gdb)
  110. Continuing.
  111. [Switching to Thread 1]
  112. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  113. 753 }
  114. (gdb)
  115. Continuing.
  116. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  117. 753 }
  118. (gdb)
  119. Continuing.
  120. [Switching to Thread 36]
  121. Breakpoint 1, printk (fmt=0xffffffff81a3f27d "%sata%u.%02u: %pV") at kernel/printk.c:753
  122. 753 }
  123. (gdb)
  124. Continuing.
  125. [New Thread 35]
  126. [Switching to Thread 35]
  127. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  128. 753 }
  129. (gdb)
  130. Continuing.
  131. [Switching to Thread 1]
  132. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  133. 753 }
  134. (gdb)
  135. Continuing.
  136. [Switching to Thread 35]
  137. Breakpoint 1, printk (fmt=0xffffffff81a5ab10 "%s: scsi3-mmc drive: %dx/%dx %s%s%s%s%s%s\n")
  138. at kernel/printk.c:753
  139. 753 }
  140. (gdb)
  141. Continuing.
  142. Breakpoint 1, printk (fmt=0xffffffff81a5e640 "<6>cdrom: Uniform CD-ROM driver Revision: 3.20\n")
  143. at kernel/printk.c:753
  144. 753 }
  145. (gdb)
  146. Continuing.
  147. [Switching to Thread 1]
  148. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  149. 753 }
  150. (gdb)
  151. Continuing.
  152. Breakpoint 1, printk (
  153. fmt=0xffffffff81a613a8 "<6>uhci_hcd: USB Universal Host Controller Interface driver%s\n")
  154. at kernel/printk.c:753
  155. 753 }
  156. (gdb)
  157. Continuing.
  158. Breakpoint 1, printk (fmt=0xffffffff81a5fba0 "<6>%s: registered new interface driver %s\n")
  159. at kernel/printk.c:753
  160. 753 }
  161. (gdb)
  162. Continuing.
  163. Breakpoint 1, printk (
  164. fmt=0xffffffff81a635b8 "<6>i8042: PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n")
  165. at kernel/printk.c:753
  166. 753 }
  167. (gdb)
  168. Continuing.
  169. [Switching to Thread 35]
  170. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  171. 753 }
  172. (gdb)
  173. Continuing.
  174. [Switching to Thread 1]
  175. Breakpoint 1, printk (fmt=0xffffffff81a639b0 "<6>serio: %s at %#lx,%#lx irq %d\n")
  176. at kernel/printk.c:753
  177. 753 }
  178. (gdb)
  179. Continuing.
  180. Breakpoint 1, printk (fmt=0xffffffff81a639b0 "<6>serio: %s at %#lx,%#lx irq %d\n")
  181. at kernel/printk.c:753
  182. 753 }
  183. (gdb)
  184. Continuing.
  185. [Switching to Thread 35]
  186. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  187. 753 }
  188. (gdb)
  189. Continuing.
  190. [Switching to Thread 1]
  191. Breakpoint 1, printk (
  192. fmt=0xffffffff81a63b68 "<6>mousedev: PS/2 mouse device common for all mice\n")
  193. at kernel/printk.c:753
  194. 753 }
  195. (gdb)
  196. Continuing.
  197. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  198. 753 }
  199. (gdb)
  200. Continuing.
  201. [Switching to Thread 35]
  202. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  203. 753 }
  204. (gdb)
  205. Continuing.
  206. [Switching to Thread 19]
  207. Breakpoint 1, printk (fmt=0xffffffff81a436dc "<6>input: %s as %s\n") at kernel/printk.c:753
  208. 753 }
  209. (gdb)
  210. Continuing.
  211. [Switching to Thread 1]
  212. Breakpoint 1, printk (fmt=0xffffffff81a64030 "<6>%s: %s%s, %zd bytes nvram%s\n")
  213. at kernel/printk.c:753
  214. 753 }
  215. (gdb)
  216. Continuing.
  217. [Switching to Thread 35]
  218. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  219. 753 }
  220. (gdb)
  221. Continuing.
  222. [New Thread 38]
  223. [Switching to Thread 38]
  224. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  225. 753 }
  226. (gdb)
  227. Continuing.
  228. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  229. 753 }
  230. (gdb)
  231. Continuing.
  232. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  233. 753 }
  234. (gdb)
  235. Continuing.
  236. [Switching to Thread 1]
  237. Breakpoint 1, printk (fmt=0xffffffff81a65f20 "<6>device-mapper: uevent: version 1.0.3\n")
  238. at kernel/printk.c:753
  239. 753 }
  240. (gdb)
  241. Continuing.
  242. Breakpoint 1, printk (
  243. fmt=0xffffffff81a674b0 "<6>device-mapper: ioctl: %d.%d.%d%s initialised: %s\n")
  244. at kernel/printk.c:753
  245. 753 }
  246. (gdb)
  247. Continuing.
  248. [Switching to Thread 38]
  249. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  250. 753 }
  251. (gdb)
  252. Continuing.
  253. [Switching to Thread 1]
  254. Breakpoint 1, printk (fmt=0xffffffff81a68490 "<6>cpuidle: using governor %s\n")
  255. at kernel/printk.c:753
  256. 753 }
  257. (gdb)
  258. Continuing.
  259. [New Thread 17]
  260. [Switching to Thread 17]
  261. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  262. 753 }
  263. (gdb)
  264. Continuing.
  265. [Switching to Thread 1]
  266. Breakpoint 1, printk (fmt=0xffffffff81a68490 "<6>cpuidle: using governor %s\n")
  267. at kernel/printk.c:753
  268. 753 }
  269. (gdb)
  270. Continuing.
  271. Breakpoint 1, printk (fmt=0xffffffff81a69428 "<6>EFI Variables Facility v%s %s\n")
  272. at kernel/printk.c:753
  273. 753 }
  274. (gdb)
  275. Continuing.
  276. Breakpoint 1, printk (fmt=0xffffffff81a6e19e "<6>TCP: %s registered\n") at kernel/printk.c:753
  277. 753 }
  278. (gdb)
  279. Continuing.
  280. Breakpoint 1, printk (fmt=0xffffffff81a6fd00 "<6>NET: Registered protocol family %d\n")
  281. at kernel/printk.c:753
  282. 753 }
  283. (gdb)
  284. Continuing.
  285. Breakpoint 1, printk (fmt=0xffffffff81a6fd00 "<6>NET: Registered protocol family %d\n")
  286. at kernel/printk.c:753
  287. 753 }
  288. (gdb)
  289. Continuing.
  290. [Switching to Thread 38]
  291. Breakpoint 1, printk (fmt=0xffffffff819fc6a0 "<6>%s") at kernel/printk.c:753
  292. 753 }
  293. (gdb)
  294. Continuing.
  295. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  296. 753 }
  297. (gdb)
  298. Continuing.
  299. [Switching to Thread 1]
  300. Breakpoint 1, printk (fmt=0xffffffff81a74898 "<5>Registering the %s key type\n")
  301. at kernel/printk.c:753
  302. 753 }
  303. (gdb)
  304. Continuing.
  305. Breakpoint 1, printk (
  306. fmt=0xffffffff81a00e08 "<7>PM: Hibernation image not present or could not be loaded.\n")
  307. at kernel/printk.c:753
  308. 753 }
  309. (gdb)
  310. Continuing.
  311. Breakpoint 1, printk (fmt=0xffffffff81a046e8 "<6>registered taskstats version %d\n")
  312. at kernel/printk.c:753
  313. 753 }
  314. (gdb)
  315. Continuing.
  316. Breakpoint 1, printk (fmt=0xffffffff81a37911 "<6> Magic number: %d:%d:%d\n")
  317. at kernel/printk.c:753
  318. 753 }
  319. (gdb)
  320. Continuing.
  321. Breakpoint 1, printk (fmt=0xffffffff81a374ad "%s%s %s: %pV") at kernel/printk.c:753
  322. 753 }
  323. (gdb)
  324. Continuing.
  325. Breakpoint 1, printk (fmt=0xffffffff81a691b8 "<6>BIOS EDD facility v%s %s, %d devices found\n")
  326. at kernel/printk.c:753
  327. 753 }
  328. (gdb)
  329. Continuing.
  330. Breakpoint 1, printk (fmt=0xffffffff81a691e8 "<6>EDD information not available.\n")
  331. at kernel/printk.c:753
  332. 753 }
  333. (gdb)
  334. Continuing.
  335. Breakpoint 1, printk (fmt=0xffffffff819eb920 "<6>Freeing %s: %luk freed\n")
  336. at kernel/printk.c:753
  337. 753 }
  338. (gdb)
  339. Continuing.
  340. Breakpoint 1, printk (
  341. fmt=0xffffffff819f3f80 "<6>Write protecting the kernel read-only data: %luk\n")
  342. at kernel/printk.c:753
  343. 753 }
  344. (gdb)
  345. Continuing.
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